Loading...
Resolution No. 7865t t r i RESOLUTION NO. 7865 2 3 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF VERNON APPROVING AND AUTHORIZING THE EXECUTION OF A 4 HRSG CONTRACT, MALBURG GENERATING STATION, BY AND 5 BETWEEN THE CITY OF VERNON AND ALSTOM POWER INC. 6 7 WHEREAS, the City cf Vernon is in the process of developing a 8 Combined Cycle Power Plant officially named the Malburg Generating 9 Station (the `Project") for the purpose of installing additional 10 generating capacity that will yield an efficient, cost-effective, and 11 reliable source of electric generation to the City of Vernon; and 12 WHEREAS, the Utilities Department of the City of Vernon has 13 determined that the City needs to purchase two (2) heat recovery steam 14 generators ("HRSGs") and one (1) steam turbine generating unit for the 15 Project; and 16 WHEREAS, Alstom Power Inc. ("Alstom") submitted proposals to 17 Vernon dated September 4, 2001 and September 13, 2001 to supply two 18 (2) HRSGs and one (1) steam turbine generating unit; and 19 WHEREAS, the Utilities Department sought informal bids from 20 different vendors but determined that Alstom could provide the lowest 21 overall package price and the types of guarantees deemed necessary for 22 the operation of the Project; and 23 WHEREAS, Vernon's Utilities Department advises that Alstom 24 is the only vendor who can provide the HRSGs, the steam turbine 25 generating unit and the services and performance guarantees for the 26 Project that meet the Department's specifications and requirements; 27 and 28 WHEREAS, the City will need to conduct all necessary 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18' 19 20 21 22 23 24 25 26 27 28 environmental reviews and obtain all necessary environmental approvals and any other approvals required by law before it can proceed with the Project; and WHEREAS, Vernon's Utilities Department has determined that the expedited purchase of the HRSGs will allow the City to meet its Project schedule if it receives environmental review and approval and will assist Vernon in meeting its short and long terttielectricity goals and is in the public interest; and WHEREAS, on September 19, 2001, the City Council of the City of Vernon approved and ratified a Letter of Intent/Authorization to Proceed with Alstom, a copy of which is attached hereto as Exhibit "A" and made a part hereof by this reference, for the purchase of the HRSGs and steam turbine generating unit for the Project and authorized a nonrefundable down payment of Five Hundred Ninety Thousand Dollars and No Cents ($590,000.00) to hold the equipment and to be credited toward the total cost of the equipment; and WHEREAS, Alstom and Vernon entered into negotiations regarding the purchase of the HRSGs and steam turbine generating unit which are now complete; and WHEREAS, the equipment purchases and services have been set forth in three (3) separate agreements and will be independently approved by the City Council; and WHEREAS, the City Council desires to approve the HRSG Contract for the purchase of the two (2) HRSGs with Alstom; and WHEREAS, the City Council of the City of Vernon has determined that, pursuant to the provisions of Subsection (a) of Section 2.27 of the Vernon City Code, it is in the public interest and necessity to enter into a Contract with Alstom for the HRSGs. - 2 - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF VERNON AS FOLLOWS: SECTION 1: The City Council of the City of Vernon hereby finds and determines that the recitals contained hereinabove are true and correct. SECTION 2: The City Council of the City of Vernon hereby approves the HRSG Contract with Alstom, a copy of which is attached hereto as Exhibit "B" and made a part hereof. SECTION 3: The City Council of the City of Vernon hereby authorizes the Mayor and the City Clerk to execute said Contract for, and on behalf of, the City of Vernon. SECTION 4: The City Council of the City of Vernon hereby directs the City Clerk, or his designee, to send one fully executed Contract to: ALSTOM Power Inc. Attn: Patricia F. Mire, Contracts Manager 10730 Telge Road Houston, TX 77095 SECTION 5: The City Clerk of -the City of Vernon shall certify to the passage of this resolution, and thereupon and thereafter the same shall be.in full force and effect. APPROVED AND ADOPTED this 7th day of November, 2001. ATTEST: BRUCE V. MALKENHORST, City.Clerk EONIS �C-MAL �G,�Mar - 3 - STATE OF CALIFORNIA ) ) ss COUNTY OF LOS ANGELES ) I, BRUCE V. MALKENHORST, City Clerk of the City of Vernon, do hereby certify that the foregoing Resolution, being Resolution No. 7865, was duly adopted by the City Council of the City of Vernon at a regular meeting of the City Council duly held on Wednesday, November 7 2001, and thereafter was duly signed by the Mayor of the City of Vernon. (SEAL) BRUCE V. MALKENHORST, City Clerk - 4 - EXHIBIT AM" l CITY COUNCIL LEONIS C. MALBURG Mayor THOMAS A. YBARRA Mayor Pro-Tem WM. "BILL" DAVIS Councilman H. "LARRY" GONZALES Councilman W. MICHAEL MCCORMICK Councilman. BRUCE V. MALKENHORST City Administrator / City Clerk FAX (323) 826-1438 ALSTOM Power Inc. 10730 Telge Road Houston, TX 77095 Fax: 281 597-8524 CITY HALL 4305 SANTA FE AVENUE, VERNON, CALIFORNIA 90058 TELEPHONE (323) 583-8811 Letter of Intent/Authorization to Proceed Attention: Mr. Jorgen Lindsten EDUARDO OLIVO City Attorney FAX: (562) 927-8722 KEVIN WILSON Director of Community Services & Water FAX: (323) 826-1435 KENNETH J. DeDARIO Director of Municipal Utilities FAX: (323) 826-1425 STEVEN E. PARKER Fire Chief FAX: (323) 826-1407 BRUCE W. OLSON Police Chief FAX: (323)826-1481 Re: Project: City of Vernon, Extension Client ref./Order Number: The City of Vernon (the "City) has received a proposal, dated September 4, 2001, from ALSTOM Power Inc. ("ALSTOM") for the supply of two HRSGs, one steam turbine and related equipment as identified in the attached Exhibit "A" (all such equipment is hereinafter referred to as the "Equipment"). The parties have not yet negotiated a contract for the supply of the Equipment. However, ALSTOM has advised that in order for it to place its alloy and carbon steel boiler tubing and pipe on order to maintain factory delivery, it requires a Letter of Intent from the City. The City is pleased to issue this Letter of Intent to ALSTOM ") upon the following terms: 1. The parties intend to proceed with the negotiation of a contract for the supply of the Equipment with a fixed and firm price that shall not exceed US$ 22,138,000 (twenty two million one hundred and thirty eight thousand dollars). 2. Payment terms shall be mutually agreed upon. 3. The scope of supply shall be as provided in ALSTOM's letter dated September 4, 2001. 4. The effective date for this instruction to proceed shall be September 19, 2001. Based upon this Letter of Intent, Alstom shall proceed to order the alloy and carbon steel boiler tubing and pipe. 5. The City shall pay ALSTOM a deposit of Five Hundred Ninety Thousand Dollars ($590,000) within 24 hours after both parties have executed this Letter of Intent. Such deposit shall be made by wire transfer pursuant to written instructions that will be provided by ALSTOM concurrently with its execution of the Letter of Intent. 6. The parties intend to enter into negotiations as soon as practical and to complete such negotiations no later than September 28, 2001. 7. This Letter of Intent shall be governed by the laws of the state of California. 9EP-20-2001 10:14AM FROM-ALSTOM Power Inc +221-856-4499 T-620 P.004/004 f-481 r 8. In no event shall ALSTOM be liable to the City of Vernon for any special, incidental or consequo Itiai damages of any kind or nature.. 9. The City of Vernon shall not be obligated or bound by any contract until and unless the negotiations result in an a contract acceptable to both parties and the contract is approved by the Vernon City Council or executed by the Vernon City Administrator and the Vernon City Attorney. I 10. The City of Vernon may terminate this Letter Agreement at any time, without cause. 11. If the parties agree upon a contract that is approved by the City as set forth in paragraph 9 above, the Contract will replace this Letter of Intent. 12. In the event that the parties are unable to agree upon a contract, ALSTOM will be allowed to keep the $590,000 deposit paid by the City in order to cover ALSTOM's costs for cancellation of the alloy and carbon steel boiler tubing and pipe. 13. If the parties are nhlP to argroo upon a contact, the �590,000 depusil SI iull be ireQtea as a crecilt to the City which shall be applied to the first payment to be paid by the City under the contract. Please confirm your acceptance of this letter of Intent by return. Sincorcly, Bruce V. Malkenhorst City Aryministrator Title September 19, 20Dr Dote CEPTEO BY A OM Power Inc. *L - ? ZOO 2c�d l Date 0 s a(3xs Power Turbine Generator Division September 04, 2001 Ramon Z. Abueg City of Vernon Utilities department 4305 Santa Fe ave. Vernon, CA 90058 Subject: City of Vernon, Extension Dear Ramon, We appreciate the continued confidence in ALSTOM Power and we are looking forward to be working with you in this extended scope; forming power island package together with the gas turbines. We understand the urgency in getting the documentation required for your permitting process in place, and hence, ALSTOM Power is committed to provide the information related to our equipment by mid September for this purpose. Please note that this information will be preliminary since some information and drawings might change during the project phase. During our meeting in Denver we discussed the possibility of issuing a purchase order for this information. Since we understand that speed is critical here, we think that the legalities of such a contract might slow down this process and also complicate this issue more than necessary, and therefore, we will take on this responsibility without a formal purchase order. Please find enclosed the list of information required for the permitting, as provided in the meeting in Denver. We've marked the information we will submit and assume that others will supply the balance of information. Further, ALSTOM Power recognize the value and the convenience for the City of Vernon to get a total power plant performance guarantee, with associated project management / administration and heat balance engineering, optimization and coordination of the total ALSTOM Power scope. Therefore, ALSTOM Power will provide an overall wrap around the performance guarantee document associated with the extension, i.e. the steam turbine and the HRSGs, and the original base scope, i.e. the gas turbines. This wrap around responsibility and coordinating effort will be included in the price for the equipment. ALSTOM Power Inc. 10730 Telge Road Houston, TX 77095-5002, U.S.A. Tel: 1-281-856-4449 Fax: 1-281-856-4499 Jorgen.lindsten@power.alstom.com Web site: http://www.power.alstom.com Cover letter .doc aRxb Power The extended scope consists of two HRSGs with associated emissions control equipment in order to meet the required levels imposed by the authorities and one steam turbine with associated generator and control system. For more details about the scope of supply, please refer to the enclosure to this letter. ALSTOM Power recognizes the importance for the city to be able to come on line with the power plant during the summer of 2003. In order to support that, and based on a confirmed, effective order date not later than September 10, the following delivery time schedule has been developed, subject to prior sales: Component Delivery time DDP site Steam turbine December 23, 2002 HRSGs October 8 — November 5, 2002 Further, in addition to the above delivery schedule, ALSOM Power will make provisions for later delivery of the gas turbines to site, in order to fit into the overall combined cycle power plant time schedule. The new delivery time for the gas turbines is between August 15 and September 1, 2002. Please note that the dates for payments relating to the original delivery schedule are still valid. The price for this extension, as outlined in this letter, will be submitted Friday September 7, 2001. This price will in principle be based on the terms and conditions negotiated for the gas turbine contract. We trust that you find this extended package interesting and we are looking forward to be working closely together with you in this, for ALSTOM Power, very important project. Yours truly, ALSTOM Power Inc. Industrial Turbines Jorgen Lindsten ALSTOM POWER Inc. 10730 Telge Road Houston, TX 77095-5002, U.S.A. Tel: 1-281-856-4449 Fax: 1-281-856-4499 Jorgen.lindsten@power.alstom.com Web site: http://www.power.alstom.com Cover letter_ doc ALSTOM Power Turbine Generator Division September 04, 2001 Ramon Z. Abueg City of Vernon Utilities department 4305 Santa Fe ave. Vernon, CA 90058 RE: Firm proposal for one steam turbine and two HRSGs including performance wrap around guarantees and project management. Dear Ramon, Based on our discussions held in Denver and the letter submitted to you on September 4, ALSTOM Power appreciate this opportunity to present the price for the following package: Scope of Supply • One (1) steam turbine of type MP24 with auxiliaries, delivered duty paid to site. For detailed scope of supply, please refer to the scope of supply document provided with the previous letter. • Two (2) modularized, duct fired HRSG units, including SCR, FW-system and NH3-system delivered duty paid to site. For detailed scope of supply, please refer to scope of supply document provided with the previous letter. • Performance "wrap around" guarantees, including: Combined cycle net power output, ➢ Net Heat Rate The guarantees including the technical conditions will be presented September 11. • HRSG Stack emissions guarantees, i.e. Nox, CO, VOC, PM10, NH3 slip • Project management and administration for the entire ALSTOM Power scope of supply • Combined cycle heat balance calculation and coordination ALSTOM Power Inc. Price letter .doc 10730 Telge Road Houston, TX 77095-5002, U.S.A. Tel: 1-281-856-4449 Fax: 1-281-856-4499 Jorgen.lindsten@power.alstom.com Web site: http://v^vw.power.alstam.com ALST(yM Power • Delayed delivery of the gas turbines to fit the overall time schedule, as outlined in the letter of September 4. However, the original payment schedule is fixed to the previous delivery schedule. Terms & Conditions The firm price given in this proposal is in principle based on the same Terms & Conditions applicable to the Gas Turbine Contract. Further, the price is conditional upon mutually acceptable commercial terms being reached during the negotiation of the different contracts. The contract structure, as outlined and agreed during our meeting in Denver still apply, i.e. one contract for the steam turbine, one contract for the HRSGs and one contract for the wrap around guarantee. Delivery time Unfortunately, due to intervening sales, we are forced to increase the delivery time of the HRSGs with two weeks and the steam turbine with one month. Hence, the delivery time of the steam turbine is IS months ex works plus 6 weeks for transportation. Please note that this delivery schedule is subject to intervening sales. Price The price for this package isUS$ 22,488,000 Please note that this price does not include any taxes. Validity The above terms & conditions and prices offered, are valid until Sep. 14, 2001. Yours truly, ALSTOM POWER Inc. Price letter .doc 10730 Telge Road Houston, TX 77095-5002 Tel: 1-281-856-4449 Fax: 1-281-856-4499 Jorgen.lindston@power.alstom.com Web site: http://www.power.alstom.com ALSTOM Power ALSTOM Power Inc. Industrial Turbines ALSTOM Power Inc. Industrial Turbines Jorgen Lindsten John Rann Business Development Mgr. Director, Business Development ALSTOM POWER Inc. 10730 Telge Road Houston, TX 77095-5002 Tel: 1-281-856-4449 Fax: 1-281-856-4499 Jorgen.lindstengpower.a lstom.com Web site: hnp://www.power.alstom.com Price letter .doc EXHIBIT t HRSG CONTRACT MALBURG GENERATING STATION Between THE CITY OF VERNON And ALSTOM Power Inc. Table Of Contents General Conditions Of Sale PAGE 1. GENERAL..................................................................................................................................3 DEFINITIONS....................................................................................................................................... 3 2. DELIVERY.................................................................................................................................6 3. ERECTION AND COMMISSIONING SERVICES...............................................................6 4. RISK OF LOSS.........................................................................................................................10 5. PRICES AND PAYMENTS.....................................................................................................10 A. PRICES....................................................................................................................................10 B. PAYMENT................................................................................................................................11 C. LETTER OF CREDIT IN LIEU OF RETENTION............................................................................. I I 6. CHANGE ORDERS.................................................................................................................12 7. PRE-EXISTING SITE CONDITIONS...................................................................................12 8. LAWS AND REGULATIONS.................................................................................................13 9. INSPECTION ... ».......................................................................................................................13 10. FORCE MAJEURE..................................................................................................................13 11. DELAYS/SUSPENSION..........................................................................................................14 12. EQUIPMENT WARRANTY...................................................................................................14 13. INFORMATION FURNISHED TO AND BY VERNON.....................................................18 14. INFORMATION FURNISHED TO ALSTOM................ »....................................... ............ 19 15. TECHNICAL DATA................................................................................................................20 16. PATENTS..................................................................................................................................20 17. CANCELLATION/ DEFAULT...............................................................................................20 18. ASSIGNMENT..........................................................................................................................21 19. PARTIAL INVALIDITY.........................................................................................................22 20. CHOICE OF LAW...................................................................................................................22 21. INSTALLATION/FIELD SERVICES....................................................................................22 22. INDEMNIFICATION AND INSURANCE .......................... »................ ».............................. 22 A. INDEMNrTY.............................................................................................................................22 B. INSURANCE........................................................................................................................... 23 23. NON -WAIVER ... ........... ............... »................... ..... .............................................. ........... ........ 23 24. AMENDMENTS ............................................. .......... ».............................................................. 24 25. ENTIRE AGREEMENT..........................................................................................................24 26. BENEFIT OF AGREEMENT.................................................................................................24 27. FORUM SELECTION.............................................................................................................24 28. COUNTERPARTS...................................................................................................................24 29. NOTICES..................................................................................................................................24 30. INDEPENDENT CONTRACTOR.......................................................................................25 31. ALSTOM NOT AGENT..........................................................................................................25 32. LIQUIDATED DAMAGES.....................................................................................................25 32.1 FAILURE TO DELIVER.........................................................................................................25 32.2 PERFORMANCE..................................................................................................................26 32.3 MAXIMUM AGGREGATE LIQUIDATED DAMAGES...............................................................26 33. NOISE TESTS...........................................................................................................................26 34. EMISSIONS TESTS.................................................................................................................27 35. LIMITATION OF LIABILITY.............................................................. »......... ...................... 28 Appendix 111" Form of Letter of Credit Appendix 112" Insurance Schedule Appendix 113" Data T1271a Section 3 Appendix 114" Programme Of Works, Delivery, Commissioning And QA Appendix 115" Scope of Supply, Document T1271a Section 5 Appendix "6" Technical Description, Document T1271a Section 6 Appendix "7" ALSTOM Proposal Drawings Appendix "8" Feedwater Quality Requirements Appendix "9" Painting & Surface Protection of Boiler Plant Components - Document 80055-000-010 CONTRACT THIS CONTRACT is made, entered into and executed in duplicate originals, either copy of which may be considered and used as the original hereof for all purposes, as of this 7th day of November 2001, in the City of Vernon, County of Los Angeles, BY AND BETWEEN THE CITY OF VERNON 4305 Santa Fe Avenue Vernon, CA 90058 ALSTOM Power Inc. 10730 Telge Road Houston, TX 77095 RECITALS WHEREAS, the City of Vernon ("Vernon") is interested in the development of a Combined Cycle Power Plant (the "Project") for purposes of installing additional generating capacity that is capable of yielding cost effective, efficient and reliable electricity to meet its goals, while meeting Federal, State and local environmental and siting requirements; and WHEREAS, Alstom Power Inc. submitted a proposal to VERNON on September 4th and 13th, 2001, to supply two HRSGs and a Steam Turbine; and WHERAS, Vernon issued a Letter of Intent to Alstom Power Inc. on September 19, 2001 for the purchase of a steam turbine and two boilers and in addition, made a nonrefundable down payment of $590,000; and WHEREAS, Vernon's Utilities Department has determined that the development of the Project, contingent upon environmental review and approval, and the purchase of the HRSGs from Alstom will assist Vernon in meeting its electricity goals and is in the public interest; and WHEREAS, Vernon and Alstom desire to set forth the terms and conditions for the purchase of the units and related services. NOW, THEREFORE, THE PARTIES HERETO DO MUTUALLY AGREE AS SET FORTH HEREIN: - 2 - 1. GENERAL The Contract shall consist of the following: The terms and conditions set forth in this document Appendix 111" Form of Letter of Credit Appendix 112" Insurance Schedule Appendix 113" Performance Data T1271a Section 3 Appendix 114" Programme Of Works, Delivery, Commissioning And QA Appendix "5" Scope of Supply, Document T1271a Section 5 Appendix "6" Technical Description, Document T1271a Section 6 Appendix "7" ALSTOM Proposal Drawings Appendix "8" Feedwater Quality Requirements Appendix "9" Painting &,Surface Protection of Boiler Plant Components - Document 80055-000-010 All Appendices are attached hereto and incorporated by reference as though fully set forth herein. To the extent that there are any conflicts between the terms of the Appendices and the terms and conditions set forth below, the terms and conditions set forth herein shall prevail. The above order of precedence shall prevail in the event that there is a conflict or inconsistency among the documents that comprise the Contract. Definitions ALSTOM shall mean ALSTOM Power Inc., a Delaware Corporation, the supplier of the Equipment hereunder. Affiliated Companies, as used in this Contract shall mean a company which directly or indirectly controls, or is controlled by or is under common control directly or indirectly with ALSTOM. At its discretion, ALSTOM may purchase equipment and material from affiliated companies or utilize personnel who are employees of affiliated companies in the provision of services hereunder, and may subcontract work to affiliated companies. Affiliated companies shall not however be under legal obligation to VERNON in connection with such equipment, material and services, and VERNON agrees that it will look solely to ALSTOM as the responsible party - 3 - in connection with all equipment, material and services to be furnished hereunder. AQMD shall mean the South Coast Air Quality Management District. Business Day shall refer to normal business days at the City of Vernon, Monday through Thursday, excluding legal holidays. Catalyst shall mean all the CO catalyst provided by the CO catalyst supplier or all the SCR catalyst provided by the SCR catalyst supplier; where in this definition the term supplier refers to ALSTOM's sub -vendor. Change Orders shall mean any changes to the Contract that are agreed to pursuant to Section 6. CHANGE ORDERS Commercial Operation shall mean the successful completion of all Emissions Tests and Performance Tests and acceptance of each HRSG for dispatch by VERNON. Commissioning shall mean the services and craft work required to check out all mechanical, electrical and control systems and subsystems and declare each HRSG ready for its Stability Test. Commissioning Representative Services shall mean the services provided by ALSTOM, as specified in Appendix "4" to this Contract. Construction Representative Services shall mean the services provided by ALSTOM as specified in Appendix 4. Contract shall mean all of the documents identified in Section 1. Contract Time Schedule shall mean the period during which ALSTOM will be required to deliver the Equipment under this Contract. Defects or Deficiencies shall mean materials and workmanship that do not conform to Contract drawings and/or specifications, are of inferior workmanship, or will materially and adversely affect the performance of the Equipment. Emissions Test: The purpose of the Emissions Tests will be to demonstrate that the units meet the emissions guarantees for the specified fuel, i.e. natural gas. The Emissions Tests will also serve as a compliance test to demonstrate that each HRSG unit complies with all guaranteed emissions limits as specified in Appendix "3" to this Contract. The Emissions Tests results shall be binding on ALSTOM to determine compliance with the guaranteed Emissions. Equipment shall mean collectively any and all equipment, components, materials, machinery, apparatus, items, processes and - 4 - parts or portions thereof, together with related engineering, technical, Construction Representative Services, Commissioning Representative Services and other services to be furnished by ALSTOM pursuant to the Scope of Supply. FOB Jobsite shall mean when the conveyance has stopped next to the off-loading area. HRSG shall mean the Equipment. Jobsite shall mean the location of the City of Vernon Power Plant, Station A. Parties shall mean ALSTOM and VERNON, collectively. Performance Test shall mean the testing of the HRSGs to verify that the guaranteed performance values are met as per the Wrap Contract. Prime Rate means the annual interest rate published in "The Wall Street Journal" MONEY RATES as the "PRIME RATE Scope of Supply shall mean Document number T1271a Section 5 attached hereto as Appendix "5." Stability Test shall mean a test that is conducted after Commissioning is completed in order to verify that each HRSG can operate in a stable condition at various loads within the conditions specified over the range of defined performance as detailed in Appendix "3"over a 24 hour period. The Stability Test procedure shall be mutually agreed between ALSTOM and VERNON prior to the Stability Test. ALSTOM's obligations in relation to the Stability Test shall be deemed fulfilled upon the first successful completion of the Test. When each HRSG's stability test has been completed successfully, the unit shall be deemed ready for Performance Testing. TFA shall mean Technical Field Advisors supplied by ALSTOM Unit Value: Since the Contract consists of the supply of two (2) HRSG, Unit Value shall equal one-half of the Contract Price identified in Section S. VERNON shall mean the City of Vernon, California. Witness Points shall mean a test or inspection point during manufacturing for which VERNON indicates a desire to witness. Wrap Contract shall mean the contract for Services and Performance Guarantees for the MALBURG Generating Station between ALSTOM Power Inc. and VERNON entered into on November 7, 2001. - 5 - 2. 3. A. DELIVERY Based upon the execution of this Contract no later than November 7, 2001, ALSTOM shall guarantee that all Equipment shall be delivered FOB Jobsite, as follows: HRSG Components Delivery Start : November 10, 2002 HRSG Components Delivery End: - Unit 1 Unit 2 1 Loose HRSG Structure & Casing 15-Nov-02 15-Nov-02 2 Modular Pressure Part Sections 18-Nov-02 25-Nov-02 3 Fabricated Pipe spools, valves* 18-Nov-02 25-Nov-02 4 HP,LP Drums 25-Nov-02 25-Nov-02 5 SCR & Burner System & Instruments 1-Dec-02 1-Dee-02 6 DA, structure, pumps, Heat -ex, piping 8-Dec-02 8-Dec-02 7 Stack & transition duct 8-Dec-02 8-Dec-02 8 Balance of Materials 8-Dec-02 8-Dec-02 9 SCR & CO Catalysts ** June-03 June-03 * Valves are shipped loose ** Catalysts according to construction schedule If the scheduled delivery of Equipment is delayed by VERNON or by reason of any of the contingencies referred to in Force Majeure below, ALSTOM may deliver such Equipment by moving it to storage in accordance with VERNON's prior instructions, if any, for the account of and at the sole risk of VERNON. When VERNON is ready to receive the Equipment, ALSTOM shall arrange, at VERNON's expense, for removing the Equipment from storage and shipping to VERNON. Shipping rates are based on prompt receipt of all necessary information from VERNON. ERECTION AND COMMISSIONING SERVICES Based on the agreed delivery date set forth in Section 2, ALSTOM shall have the Construction Representative ready to commence duties one (1) week prior to the first anticipated delivery to Jobsite. ALSTOM shall provide all special tools and typical start- up spare parts needed to complete such services. B. ALSTOM shall furnish to VERNON, on the terms contained herein, the services of one or more Construction Representatives, to provide advice and consultation to VERNON or its construction contractors on the assembly or installation of the Equipment. ALSTOM shall also furnish to VERNON, the services of one or more Commissioning Representatives (the Construction Representative and Commissioning Representative are hereinafter collectively referred to as the "Representative"), to provide assistance and act in an advisory capacity to VERNON's operating and 6 - C. maintenance personnel on the startup and operation of ALSTOM the Equipment. Duties of Construction Representative The Representative will consult with VERNON and its construction site representative regarding procedures required to assemble, install or erect the Equipment in accordance with ALSTOM's drawings. VERNON shall be responsible4fr proper assembly, erection and installation, and field testing of all Equipment. VERNON shall furnish all labor, equipment, tools, utilities, and whatever else is necessary for unloading, handling, hauling, erecting, cleaning and testing the Equipment. VERNON shall qualify the necessary welding procedures, furnish the welding electrodes, complete the necessary master data report forms for field assembly, qualify welders and bear the cost of the welder qualification tests. ALSTOM must compile and file Manufacturer's Data Reports with the regulatory authority. In order to do this, it is necessary that the assembler have a quality assurance program, ASME certificate of authorization, and applicable symbol stamp. VERNON or the assembler shall be responsible for placing the "A" stamp on the unit in accordance with applicable ASME Boiler Code Rules. The Representative shall witness the opening and checking of material furnished by ALSTOM contained in boxes, crates, packages, bundles, etc., received at the Jobsite, to verify that material listed in ALSTOM's packing lists is actually included in said packages. He shall provide reasonable assistance in expediting, through assigned channels, replacement of any and all ALSTOM furnished materials short shipped, damaged in transit, or claimed lost through disappearance. The Representative has no authority to, and shall not, supervise contractors or labor nor participate in the assembly, scheduling, planning, erection, or operation of the Equipment. Duties of Commissioning Representative The Representative shall act in an advisory capacity to VERNON's operating personnel during the periods of checking out, boiling out, chemical cleaning, starting up, and initial operation of the Equipment and shall likewise advise and assist VERNON's personnel regarding operating and maintenance procedures, as well as test procedures for those tests required or desired to establish the capability of the Equipment to meet guarantees. Such Representative is not authorized to supervise operations or - 7 - F. G. VERNON's personnel nor is he authorized or licensed to operate the Equipment. The Representative shall also furnish any additional information, advice, or consultation which VERNON may reasonably request relating to the Equipment. Commencement of Services The Representative shall report for duty on the day requested by VERNON provided written noticE d s given to ALSTOM at least thirty (30) days in advance of the date on which the services are required. In the event that VERNON fails to provide notification to ALSTOM in accordance with the foregoing, ALSTOM shall furnish the Representative as soon as possible. ALSTOM reserves the right to refuse to provide or remove a Representative in case of hazardous civil situation which may exist or occur. Rates The normal working hours and days for any Representatives shall not exceed five (5) days or shifts per week, Monday through Friday, exclusive of legal holidays, with each working day or shift not to exceed ten (10) hours duration. If additional Representative days to those included in the base Contract price are required, due to reasons not attributable to ALSTOM, the basic per diem rate is $1,040 for 10 hours for each Representative. Any hours or days worked in excess of this shall be considered overtime. VERNON shall pay for overtime at the rate of $ 170 per hour for each Representative; this rate includes local travel, lodging, and subsistence expenses. In and out travel will be billed at cost for such travel cost associated with the additional representative days noted above. VERNON agrees to render all reasonable assistance to the Representative in connection with his rendering of services at the Jobsite. VERNON shall be responsible for furnishing, at no cost to ALSTOM, necessary space and facilities adjacent to the work area for use by the Representative as field office, and for the safe storage of drawings, files, books and personal tools, and shall furnish office equipment and supplies, as required. Time Sheets/Payment The basis for invoicing VERNON for Representative man -days for normal project time and hours worked in excess of those included in the Contract Price shall be ALSTOM's standard time sheets, co -signed by the Representative and a duly authorized - 8 - representative of VERNON. Time sheets shall be of sufficient detail to distinguish between services provided by the Representative for either VERNON's or ALSTOM's account and include adequate description of work performed by the Representative for VERNON or ALSTOM H. Backcharges ALSTOM will not be liable, whether by backcharge or otherwise, for the cost of work performed or material or equipment furnished by VERNON or by thr-,parties unless such work and the costs thereof have been approved in writing by an authorized representative of ALSTOM. _ALSTOM is only liable for the cost to repair the defects in the Equipment. ALSTOM shall not be liable for the costs of delay to VERNON'S erection program, standby time, consequential, indirect or other costs due to the backcharge-able repair work. VERNON's site representative will provide written notification to ALSTOM's Representative of a potential backcharge within 7 days of its knowledge of the occurrence. ALSTOM's Representative will concur or obtain necessary concurrence that the work detailed in the written notification is a valid backcharge. ALSTOM shall not be liable, whether by backcharge or otherwise, unless VERNON notifies ALSTOM within 7 calendar days of it's knowledge of the occurrence of a backcharge incident/event. If the schedule permits, ALSTOM will be given the opportunity to perform the repair work using a contractor of ALSTOM's choice. If ALSTOM elects to perform the work, ALSTOM agrees to make all reasonable efforts to minimize any adverse effect to VERNON's ongoing work. In the event that ALSTOM elects not to perform the work, VERNON will perform the work in accordance with the Contract. The costs of such backcharge work shall be computed as follows: a) Engineering and fieldwork shall be charged at actual cost. b) Materials and subcontracts shall be charged at net delivered costs. c) Equipment and tools rentals shall be charged at Blue Book value. d) 10% shall be added to items a, b, and c above to cover VERNON's indirect costs, overhead, supervision and administration. lw� VERNON will provide coded timesheets to ALSTOM's Representative for signature on a daily or weekly basis. Backcharge value will be determined in accordance with the agreed upon rate schedule and the approved timesheets. VERNON will submit backcharge invoices to ALSTOM with the appropriate backup (including approved timesheets). ALSTOM will make payment to VERNON based on the backcharge invoice. I. General THE RESPONSIBILITIES OF THE REPREF'_'*]TATIVES ARE LIMITED TO ADVISING AND CONSULTING IN ACCORDANCE WITH THE FOREGOING TERMS OF THIS CONTRACT. THE REPRESENTATIVE SHALL HAVE NO AUTHORITY, AND SHALL NOT BE REQUIRED TO SUPERVISE THE ASSEMBLY, ERECTION OR OPERATION OF THE EQUIPMENT. NOTHING HEREIN SHALL RELIEVE VERNON OR ITS ERECTION CONTRACTOR FROM RESPONSIBILITY FOR DIMENSIONAL ACCURACY, QUALITY OF WORKMANSHIP, OR ASSEMBLY, ERECTION AND OPERATION OF THE EQUIPMENT IN ACCORDANCE WITH ALSTOM'S DRAWINGS AND INSTRUCTIONS. THE REPRESENTATIVES SHALL HAVE NO RESPONSIBILITY FOR INSPECTION SERVICES WHICH MAY BE REQUIRED BY LOCAL, STATE, FEDERAL, OR INDEPENDENT REGULATORY AGENCIES OR BOARDS. 4. RISK OF LOSS Title and risk of loss or damage shall pass to VERNON and delivery shall be deemed to be complete upon delivery FOB Jobsite or upon moving into storage at VERNON's request, whichever occurs first. Claims for shortages, or damages caused during transportation, must be filed by VERNON within twenty (20) days after delivery of the Equipment FOB Jobsite or notice of loss, whichever shall occur first, and must be accompanied by ALSTOM'S packing slip and full particulars of any such claim. 5. PRICES AND PAYMENTS A. Prices The price for the Equipment shall be Fourteen Million Nine Hundred and Thirty -Five Thousand Dollars ($14,935,000) (USD) customs & duties included. Prices do not include sales or use taxes, special financing fees, value-added taxes, special permits or licenses, or similar charges. VERNON shall either pay any and all such applicable charges or provide ALSTOM with acceptable exemption certificates. In spite of the foregoing, ALSTOM shall be responsible for any special permits or licenses required in the delivery of the Equipment FOB Jobsite. - 10 - B. Payment Subject to subsection C below, invoices shall be submitted to VERNON according to the following payment schedule: 10% Down payment due before 12:00 p.m. (PST), November 8, 2001 (less $375,OOO of the initial down payment) 15% Submission by ALSTOM of certified drawings for Foundation outline drawings and Foundation Loads and Requirements. 15% Submission by ALSTOM of certified drawings for Steam / Water Terminal points'& HRSG P&ID: 25% Upon Vernon's receipt of proof of pressure part tubing arrival in fabricators works from tube mill 25% Upon VERNON's receipt of proof of shipment of completed pressure part modules from module fabricator's works 5% Delivery of equipment groups 1-4 to Jobsite 3% Delivery of equipment groups 5-8 to Jobsite 2% Delivery of the SCR and CO catalysts Invoices shall be due and payable by wire transfer within fifteen (15) days of receipt by VERNON to: ALSTOM Power Inc. Bank One N.A. ABA #071000013 Account#5709636 Past due invoices shall be subject to interest charges at the Prime Rate. C. Letter of Credit in Lieu of Retention ALSTOM shall provide VERNON with an irrevocable Letter of Credit, in the same form as Appendix "1". The Letter of Credit shall be from a first class bank acceptable to VERNON, and shall be for 10% of the total Contract price. ALSTOM shall issue the Letter of Credit promptly after receipt of the down payment. The Letter of Credit shall be valid until the successful testing of the Equipment in accordance with the Performance Test, not to exceed ten (10) months from the date of delivery of group 8 of the HRSG Units to the Jobsite. VERNON shall return the Letter of Credit tc ALSTOM at its expiration. ALSTOM recognizes that VERNON has agreed to accept the Letter of Credit in lieu of a,ten percent (10%) retention of the total Contract price that VERNON would otherwise require. Therefore in the event that ALSTOM fails to provide an acceptable letter of credit to VERNON in 'a timely manner, VERNON may, after reasonable notice to ALSTOM, withhold up to ten percent (10%) of the total Contract price from ,any remaining payments. Any such retention may be held by VERNON for up to (30) days after Commercial Operation. 6. CHANGE ORDERS VERNON shall have the right to request changes in the Equipment design, delivery dates, or additions to or deletions from the Equipment or Scope of Supply. All such changes shall be incorporated in written Change Orders executed by VERNON and ALSTOM which shall specify the changes ordered and the adjustment of prices, delivery schedules and .arranties. ALSTOM shall be entitled to changes to the Contract based on the following: i) change or enactment of laws, ordinances, codes, rules or regulations, relating to the Equipment occurring after the effective date of the Contract, ii) acts or omissions of VERNON or parties with whom VERNON has contracted which may materially impact the Contract. Any equipment or services added to the Contract under this section shall be executed under all applicable conditions of this Contract. Neither Party -shall have the obligation to proceed with such request or Change Order until the Parties have agreed in writing to the terms of such Change Order. 7. PRE-EXISTING SITE CONDITIONS It is understood and agreed by the Parties that nothing herein shall be interpreted as placing any responsibility or liability on: a. ALSTOM for pre-existing Jobsite conditions related to pollution, contamination, hazardous waste, asbestos or toxic materials or for the generation, emission, or disposal of such substances; or b. VERNON for pollution, contamination, hazardous waste, asbestos or toxic material introduced to the Jobsite by ALSTOM including the generation, emission, or disposal of such ALSTOM introduced substances. VERNON shall indemnify, defend and hold harmless ALSTOM and its Affiliated Companies, its officers, employees and agents against any and all claims or liabilities based on the conditions identified in paragraph a. above. ALSTOM shall indemnify, defend and hold harmless VERNON, its officers, employees and agents against any and all claims or liabilities based on the conditions identified in paragraph b. above. - 12 - 8. LAWS AND REGULATIONS' ALSTOM agrees to comply with all federal, state and local laws that apply'to ALSTOM as a supplier to VERNON under this Contract. All laws, regulations and design codes expressly incorporated herein shall be those in effect on the effective date of this Contract. In the event of any subsequent revisions or changes thereto, except in connection with the business activities of ALSTOM or its subcontractors or agents, ALSTOM assumes no responsibility for compliance there_-_th unless an appropriate Change Order is issued. Nothing contained herein shall be construed as imposing responsibility or liability upon ALSTOM.for the obtaining of permits, licenses or approvals from any environmental, siting or public utility authority or other agency required in connection with the supply, erection or operation of the Equipment, except business licenses and/or contractor's licenses as may be required in the name of ALSTOM or its subcontractors to support their business activities. 9. INSPECTION Provided ALSTOM receives reasonable prior notice thereof, VERNON shall be provided reasonable escorted access to ALSTOM'S manufacturing facilities for the limited purposes of inspecting the Equipment and witnessing any tests prearranged to be witnessed and required by this Contract. Neither completion of manufacturing nor shipment of any part will be delayed to accommodate such inspection or witnessing. For agreed Witness Points, ALSTOM will provide at least ten (10) days advance notice. If ALSTOM does not receive written confirmation that VERNON will attend, or if VERNON fails to appear at the time of the test/inspection mentioned in the notification, ALSTOM shall proceed with the work. ALSTOM shall provide'VERNON a schedule of potential Witness Points within two (2) weeks, of execution of this Contract and VERNON will within two (2) weeks of receipt of the schedule provide ALSTOM with an initial indication of potential Witness Points it may wish to witness. 10. FORCE MAJEURE Neither Party shall be considered in to be in default in any of its obligations under this Contract when a failure of performance shall be due to an uncontrollable force. The term "uncontrollable force" shall mean any cause beyond the control of the party affected, including, but not restricted to, flood, - 13 - earthquake, storm, fire, lightening, epidemic, war, terrorist action, riot, civil disturbance or disobedience, labor dispute, labor material shortage, sabotage, federal, state, or municipal action, statute, ordinance, or regulation, embargoes of the United States Government or any other government, which by exercise of due diligence such party could not reasonably have been expected to avoid and by exercise of due diligence has been unable to overcome. Either party rendered unable to fulfill any of its obligations under this Contract by reason of an uncontrollable force, shall give written notice within five (5) Business Days of such fact to the other party and shall exercise due diligence to remove such inability with all reasonable dispatch. 11. DELAYS/SUSPENSION In the event of any delay attributable to VERNON, its subcontractors or agents that negatively affects the Contract Time Schedule, ALSTOM shall be entitled to an equitable adjustment of the Contract Time Schedule and the consequences thereof and reimbursement of all impact costs plus reasonable overhead and profit. 12. EQUIPMENT WARRANTY A. Title. ALSTOM warrants title to the Equipment and any part thereof to be free of any claim of any security interest, lien or any encumbrance. B. General. ALSTOM warrants that all Equipment shall be delivered new and shall be free from defects in material and workmanship for the warranty period of twelve (12) months from Commercial Operation or twenty one (21) months from date of delivery of the last piece of Equipment (not including catalyst which carries a separate warranty), whichever first occurs. If VERNON takes dispatch control before Commercial Operation, the warranty period will begin on the date of dispatch control. ALSTOM also warrants to VERNON that the Equipment supplied a) will conform to the requirements as set forth in the Appendices, b) will conform to the codes and standards referenced as of the date of the Contract coming into force, c) will have all factory tests completed prior to delivery of the Equipment, d) shall be fit for the purposes specified when operating in accordance within the design conditions specified in Appendix "3 - 14 - C. Spare Parts. If this Contract includes the supply of any spare parts supplied by ALSTOM, ALSTOM warrants such parts and components against defects in material and workmanship for a period of twelve(12) months from first use or twenty one (21) months from delivery, whichever occurs first. D. Should any failure to conform with the applicable warranties appear during the periods specified in this Section under normal and proper use and provided the Equipment has been properly stored, installed, operated and maintained in a competent, diligent manner, and if given reasonable notice by VERNON within the warranty period, ALSTOM shall promptly correct such nonconformity, at its option, by repair or replacement of the nonconforming Equipment or parts thereof. Repairs or replacements pursuant to warranty shall not renew or extend the applicable original Equipment warranty period, provided however, that any such repairs or replacement of Equipment or parts thereof shall be warranted for the time remaining of the original warranty period or one (1) year from installation, whichever is longer. ALSTOM may, at its option, substitute improved products or equipment when replacing any component. All warranties shall survive a sale or assignment by VERNON. E. ALSTOM shall be responsible for the repair or replacement of all Equipment under this Section FOB Jobsite. In connection with such repair or replacement, VERNON shall provide ALSTOM with unencumbered access to the Equipment at mutually agreed upon times. F. These warranties shall not apply to any Equipment or parts thereof which (1) have been improperly repaired or altered; (2) have been subjected to misuse, negligence or accident; (3) have been installed, Commissioned, and used in a manner contrary to ALSTOM'S operation and maintenance manual provided to VERNON or reasonable written instruction by ALSTOM'S technical advisor; (4) are comprised of materials provided or designed by VERNON; (5) have been damaged by or subjected to abrasion, corrosion, or chemicals and gases due to the physical environment or other conditions exceeding those specified, including without limitation temperature, pressure or dirt; or (6) because of VERNON's design, location, operations, or maintenance of the Equipment, its use in association with other equipment of VERNON, or the alteration of the Equipment by any party other than ALSTOM caused a violation of any OSHA standard. In no event shall the exceptions set forth above apply to any conditions caused by ALSTOM, its subcontractors or agents. - 15 - G. ALSTOM MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND. ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY OTHER WARRANTIES WHICH MAY ARISE FROM USAGE IN TRADE OR COURSE OF DEALING ARE HEREBY DISCLAIMED. THE REMEDIES OF VERNON UNDER THIS WARRANTY SHALL CONSTITUTE THE SOLE OBLIGATION OF ALSTOM, ANY AFFILIATED COMPANY, ITS SUPPLIERS OR SUBCONTRACTORS, AND THE OFFICERS, DIRECTORS, EMPLOYEES AND AGENTS OF EACH (IN THIS PARAGRAPH, "ALSTOM") AND VERNON'S SOLE AND EXCLUSIVE REMEDY FOR ALL WARRANTY CLAIMS REGARDING THE EQUIPMENT, AND SHALL CONSTITUTE FULFILLMENT OF ALL LIABILITIES OF ALSTOM (INCLUDING ANY LIABILITY FOR DIRECT, SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, WHETHER ARISING IN CONTRACT, WARRANTY, INDEMNITY, TORT, NEGLIGENCE, STRICT LIABILITY, PROFESSIONAL LIABILITY, PROFESSIONAL LIABILITY, CONTRIBUTION OR OTHERWISE). VERNON HEREBY RELEASES ALSTOM FROM ANY LIABILITY NOT EXPRESSLY ASSUMED ABOVE, REGARDLESS OF THE FAULT, NEGLIGENCE, OR STRICT LIABILITY OF ALSTOM. H. ALSTOM's obligation, regarding the warranty for Catalyst (s) shall be, upon the successful completion of the Emissions Test, to transfer the respective Catalyst supplier'(s) warranties to Vernon. Upon such transfer, ALSTOM shall have no liability to VERNON for any defect in the Catalyst subject to the warranty, whether pursuant to this Contract or otherwise, except to the extent such liability may not, by law, be contracted out of by the Parties. VERNON may not transfer the warranty/warranties to another party without the respective Catalyst supplier(s) consent. If VERNON needs to make a warranty claim upon a catalyst supplier for prorata catalyst life, ALSTOM shall assist VERNON by providing proof of the original purchase price of the catalyst. The catalyst warranty/warranties period shall be three (3) years after first gas across catalyst, not to exceed forty-two (42) months after delivery. The warranty shall be in substantially the following form or similar form: Typical Catalyst Warranty For the purposes of this example, OWNER shall mean VERNON and SELLER shall mean the Catalyst supplier Successful operation of the catalyst may require OWNER to periodically clean the catalyst according to procedures approved or provided by the SELLER to eliminate masking agents, such as, but not limited to, noncombustible particulates or high boiling - 16 - organics. Provided that the OWNER (i) has operated the catalyst system within the process parameters specified (ii) has maintained the catalyst system in compliance with the instruction manual provided by SELLER; and (iii) has given SELLER access to the relevant process operating logs which have been maintained and recorded in a process operating log on a regular basis, not lesc-than every 24 hours, then SELLER extends to OWNER the following warranty: 1. SELLER, for the period of three (3) years after first gas across catalyst, not to exceed forty-two (42) months after delivery, warrants, subject to all terms and conditions herein, that the catalyst furnished hereunder, when operated in accordance with the operating conditions specified herein, shall satisfy the performance requirements also listed herein. The catalyst warranty is prorated over catalyst warranty period. It shall be OWNER'S responsibility to show that operating conditions are as specified herein. Non-compliance with the performance specifications shall be determined at OWNER'S expense by an organization and using equipment and procedures mutually agreed upon between OWNER and SELLER. Evidence of noncompliance shall be submitted in writing by OWNER to SELLER prior to the expiration of the warranty period set forth herein. SELLER reserves the right, with proper notice to OWNER, to perform analytical measurements for the purpose of determining compliance or non-compliance with performance and operating conditions stated herein. Failure of OWNER to meet any material conditions set forth in this paragraph or elsewhere in this warranty shall relieve SELLER of responsibility under this warranty but only to the extent the SELLER can reasonably demonstrate the failure adversely affects the catalyst. 2. If the catalyst fails to meet the performance specifications herein, SELLER'S sole liability shall be for SELLER, at SELLER'S option, to: (a) Replace FOB SELLER'S plant of manufacture, the non -performing catalyst; OWNER shall pay for such replacement catalyst with an allowance to the purchase price for new catalyst, upon SELLER'S receipt, F.O.B. SELLER'S plant of manufacture, of the non- performing catalyst, which shall be calculated according to terms - 17 - stated herein. (b)Modify/Regenerate F.O.B. SELLER'S plant of manufacture, the non -performing catalyst; if modifications require additional cata- lyst such catalyst shall be provided to OWNER at no charge; OWNER shall reimburse SELLER for the cost of modifying the equipment to accept the additional catalyst under this option; or (c) Refund to OWNER a portion of the purchase price of the non- performing catalyst upon SELLER'S receipt, F.O.B..SELLER'S plant of manufacture, according to the terms stat--d herein. The catalyst warranty is example, if the Catalyst (2 0th) month, then SELLE R 3. The maximum aggregate liability of SELLER under this warranty shall not exceed the catalyst purchase price specified in the original purchase order. SELLER in no event shall be liable for production losses or indirect or incidental or consequential or special damages resulting from failure of catalyst to meet warranty. 4. The following contaminants are known catalyst deactivators and contribute to shortened catalyst life: heavy and base metals such as lead, mercury, arsenic, antimony, sodium, potassium, lithium, zinc, copper, tin, iron, nickel and chrome; sulfur; sili- con, phosphorous and fluorine, chlorine, iodine and ash . Hence, the contents of these contaminants in the catalyst must not singularly or collectively accumulate to such a level that exceeds 350mg/m3 or 10 mg/ft3 of catalyst washcoat as determined by ICP- OES ( Inductively Coupled Plasma - Optical Emissions Spectroscopy) or glow discharge mass spectrophotometry. 5. THESE WARRANTIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, ARISING BY LAW OR CUSTOM INCLUDING, BUT NOT BY WAY OF LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY AND THE IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE. I. The above limitation on VERNON's warranty claims shall in no way limit or affect VERNON's right to Liquidated Damages as established in this Contract. 13. INFORMATION FURNISHED TO AND BY VERNON Any design, manufacturing drawings or other information or materials, marked "CONFIDENTIAL", submitted to VERNON shall remain - 18 - the exclusive property of ALSTOM. VERNON shall not, without ALSTOM'S prior written consent, which consent shall not be unreasonably withheld or delayed, copy or disclose such information to a third party, except for VERNON's consultants or subcontractors. Such information shall be used solely for the operation or maintenance of the Equipment and not for any other purpose, including the duplication of the Equipment or any part thereof in whole or in part, provided that such information shall not be deemed confidential which (a) is or becomes generally available to the public, (b) becomes available to VERNON, its agents, employees, counsel, affiliates and-scnsultants, on a non - confidential basis from a source who has not imposed a confidentiality obligation on VERNON , or (c) was in the possession of VERNON, its agents, employees, counsel, affiliates and consultants, on a non -confidential basis prior to the execution of this Contract. 14. INFORMATION FURNISHED TO ALSTOM A. Access to Confidential Information. VERNON may provide ALSTOM with, or allow ALSTOM access to, certain information not available to the public concerning VERNON, or businesses located in VERNON. The information may include company information, taxes, sales, value of assets, or other such information. All such information shall be known as "Confidential Information and shall be marked clearly as "Confidential Information". B. No Disclosure. Except as expressly permitted, ALSTOM shall not disclose, permit the disclosure of, release, disseminate, or transfer, whether orally or by any other means, any part of such Confidential Information to any other person or entity, whether corporate, governmental, or individual, without the express prior written consent of an authorized representative of VERNON. ALSTOM shall return any written Confidential Information and all copies made of such items to VERNON upon VERNON's written request, but in any event not later than the date that ALSTOM has performed all services to be performed pursuant to this Contract. ALSTOM hereby agrees that such Confidential Information and any documents provided may be used by ALSTOM only as authorized by VERNON. ALSTOM shall take reasonable measures to avoid any disclosure of any such Confidential Information to any unauthorized person. C. Court Ordered Disclosure. ALSTOM shall immediately notify VERNON of any court order or subpoena requiring disclosure of Confidential Information, and shall cooperate with legal counsel in the appeal or challenge of any such order or subpoena. Recipient may only disclose Confidential Information required to be disclosed pursuant to court order or subpoena after legal counsel has exhausted any lawful and timely appeal or challenge. - 19 - D. Remedies. In addition to any other remedies that it may have at law or in equity, VERNON shall be entitled to a temporary and permanent injunction by a court of competent jurisdiction against any breach or threatened breach of the Confidential Information provisions of this Contract. ALSTOM acknowledges that in case of such breach or threatened breach of said provisions, VERNON would have no adequate remedy at law. 15. TECHNICAL DATA All operating or other performance information and data under this Contract are based on the conditions specified in the attached Appendices and the information specified in the Wrap Contract. ALSTOM'S sole liability in respect to performance of the Equipment shall be only as expressly stated in the attached Appendices, as set forth herein and as detailed in the Wrap Contract. 16. PATENTS ALSTOM shall defend, indemnify and hold VERNON and its officers, employees and agents free and harmless from any claim, litigation or other judicial or administrative proceeding the basis of which is that the Equipment or material supplied hereunder infringes on a U.S. apparatus patent issued prior to the date of this Contract other than those arising out of (a) material or Equipment supplied according to VERNON's detailed design; (b) modifications, alterations, additions or changes made by VERNON to the Equipment or to material supplied by ALSTOM, (c) the use of the Equipment or material supplied hereunder in conjunction with any other process or equipment or material not supplied by ALSTOM, or (d) claims covering a process performed or a product produced by said Equipment. VERNON will notify ALSTOM in writing within a reasonable period of time, of such claim. ALSTOM shall have control over the defense and/or settlement of such claim and reasonably required assistance in said defense. If the Equipment or material is determined to be infringing, or in ALSTOM'S reasonable opinion may be determined to be infringing, ALSTOM will, at its option and expense, either (i) procure for VERNON the right to continue using said Equipment or part thereof, (ii) modify it so it becomes non -infringing equipment,, (iii) replace it with substantially equivalent non -infringing equipment. 17. CANCELLATION/ DEFAULT A. Any order or contract may be terminated by VERNON for its convenience only upon fifteen days (15) prior written notice and upon payment of reasonable and proper termination charges, including, but not limited to, all costs incurred or committed, prior to the effective date of notice of termination and all - 20 - charges incurred by ALSTOM in connection with the termination, plus reasonable overhead and profit. B. In the event ALSTOM commits a breach of a material condition of this Contract, VERNON shall notify ALSTOM in writing of said breach and if ALSTOM has not cured or begun reasonable efforts to cure after fifteen (15) working days of receipt of said notice, and fails to diligently pursue corrective action, then VERNON shall have the right to cancel this Contract. ALSTOM shall be responsible for any direct costs due to VERNON's re - procurement of the equivalent of the Equipment or services cancelled from ALSTOM. ALSTOM shall not warrant work completed by others. C. If VERNON fails to make any contractual payment to ALSTOM when due under the provisions of this Contract, and such failure is.not remedied within fifteen (15) days of VERNON's receipt of written notice of such default, then ALSTOM will notify VERNON. If such failure is not remedied within seven (7) days of VERNON's receipt of the second notice then ALSTOM may terminate this Contract for VERNON's Default and recover all costs expended by ALSTOM plus a reasonable amount for profit and overhead thereon. 18. ASSIGNMENT Except as provided in this Section, neither party may directly or indirectly sell., assign, transfer, pledge, mortgage or encumber (each, a "Transfer") any of its interest in any of its rights or obligations under this Contract, without the prior written consent of the other party, which consent shall not be unreasonably withheld, conditioned or delayed. Except as provided in this Section, any Transfer that is made without the prior written consent of the other party shall be void. Notwithstanding anything to the contrary in this Contract: 1. VERNON may assign its rights under this Contract, without ALSTOM'S consent, to any party that is capable of performing all of the obligations that would otherwise be performed by VERNON, including being financially able to make any remaining payments due, or that may become due to ALSTOM under the Contract. If VERNON desires to assign its rights under this Contract, it shall advise ALSTOM of such anticipated assignment, in writing. ALSTOM shall also be entitled to request reasonable proof of the proposed assignee's financial status. ALSTOM shall then have ten (10) days to advise VERNON of its objection to the assignment and the basis for such conclusion. 2. ALSTOM may assign any amounts due to it under this Contract to a special purpose account as part of its participation in a - 21 - Asset Backed Securitization Program without notice to or the consent or approval of the other party hereto; 3. No such assignment by ALSTOM shall constitute an event allowing for termination of this Contract by VERNON. 4. No such assignment by ALSTOM shall reduce, change or modify any right of VERNON under this Contract. 19. PARTIAL INVALIDITY Wherever possible, each provision hereof will be interpreted in such manner as to be effective and valid under applicable law, but in case any one or more of the provisions contained herein will, for any reason, be held to be invalid, illegal or unenforceable in any respect, such provision will be ineffective to the extent, but only to the extent, of such invalidity,, illegality or unenforceability without invalidating the remainder of such invalid, illegal or unenforceable provision or provisions or any other provision hereof, unless such a construction would be unreasonable or contrary to the intent of the Parties as expressed in this Contract. 20. CHOICE OF LAW The rights and remedies of the parties hereunder shall be governed by the laws of the State of California. 21. INSTALLATION/FIELD SERVICES Unless otherwise agreed, the Equipment shall be installed by VERNON, at its expense. ALSTOM shall provide Construction Representatives as required to perform its services identified in Section 3 above. If additional Construction Representative services are required due to VERNON or its subcontractors, these additional services shall be provided in accordance with ALSTOM's current service rate schedule. 22. INDEMNIFICATION AND INSURANCE A. Indemnity Subject to ALSTOM-S Limitation of Liability, ALSTOM shall indemnify, hold harmless and defend VERNON, its officers, employees and agents from and against any claims, demands, suits, proceedings, liabilities, judgments, awards, losses, damages, costs or expenses (including reasonable legal fees) whatsoever arising out of and caused or occasioned by any negligent act or omission of ALSTOM, or any of its officers, directors, agents or employees, contractors or subcontractors in connection with the 22 - performance of the work under or in connection with this Contract, and resulting in bodily injury, including death or destruction of third -party tangible property. The obligation of ALSTOM to indemnify VERNON is conditioned on VERNON giving ALSTOM reasonable notice of any loss, damage or claim, and providing ALSTOM a full opportunity to participate in the defense and to approve any settlement thereof. In the event that any losses arise, directly or indirectly, in whole or in part, out of the joint or concurrent negligence of both Parties and their respective representatives each party's liability therefor shall be limited to such party's proportionate degree of fault. B. Insurance Prior to commencing work hereunder, ALSTOM shall provide VERNON with proof of insurance providing and maintaining the coverages and endorsements set forth in the Insurance Schedule attached hereto as Appendix "2" and made a part hereof by reference. Said proof of insurance shall also provide that said policy or policies shall not be canceled or materially reduced in coverage without giving at least thirty (30) days prior written notice to VERNON. ALSTOM shall not permit a subcontractor or vendor to perform work on VERNON premises unless and until a certificate of insurance is obtained showing that such subcontractor or vendor has worker's compensation coverage. If ALSTOM employs subcontractors as part of the services rendered, ALSTOM's protective coverage is required. ALSTOM may include all subcontractors as insureds under its own policy or shall furnish separate insurance for each subcontractor, meeting the requirements set forth herein. During the performance of work at the site, VERNON shall maintain "All Risk" property insurance coverage including course of construction for the full replacement cost of the Equipment to the same extent that VERNON insures its similar facilities. ALSTOM shall be named an additional insured under VERNON's "All Risk" policy. 23. NON -WAIVER The failure of either party to insist upon or enforce, in any instance, strict performance by the other party of any provision or to exercise any right herein conferred shall not be construed as a waiver or relinquishment to any extent of its right to assert or rely upon any such provision or rights on any future occasion. - 23 - 24. AMENDMENTS This Contract may be modified or amended only by a written document executed by both ALSTOM and VERNON and approved as to form by VERNON's Counsel. 25. ENTIRE AGREEMENT This Contract is the entire agreement of the Parties. ALSTOM represents that in entering into this Contract, it has not relied on any previous representations or understandings of any kind or nature. 26. BENEFIT OF AGREEMENT This Contract shall bind and benefit the Parties hereto and their heirs, successors, and permitted assigns. 27. FORUM SELECTION Any action brought relating to this Contract shall be brought and held exclusively in a State Court in the County of Los Angeles, California. 28. COUNTERPARTS This Contract may be executed simultaneously in two or more counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the same instrument. 29. NOTICES Notices to the Parties, unless otherwise requested in writing, shall be sent to: City: THE CITY OF VERNON ATTN: Bruce V. Malkenhorst City Administrator 4305 Santa Fe Avenue Vernon, CA 90058-0805 ALSTOM: ALSTOM Power Inc. 10730 Telge Road Houston, TX 77095 Notices shall be deemed to have been received by the close of Business Day two days after the date on which it was mailed. - 24 - 30. INDEPENDENT CONTRACTOR. At all times during the term of this Contract, ALSTOM shall be an independent contractor and shall not be an employee of VERNON. VERNON shall have the right to control ALSTOM only insofar as the results of ALSTOM's services rendered pursuant to this Contract; however, VERNON shall not have the right to control the means by which ALSTOM accomplishes services rendered pursuant to the Contract except to the extent that such services involve the use of VERNON property or Confidential Information. 31. ALSTOM NOT AGENT Except as VERNON may specify in writing, ALSTOM shall have no authority, express or implied, to act on behalf of VERNON in any capacity whatsoever as an agent. ALSTOM shall have no authority, expressed or implied, pursuant to this Contract to bind VERNON to any obligation whatsoever. 32. LIQUIDATED DAMAGES 32.1 Failure to Deliver A. Time for delivery is based on execution of this Contract not.later than November 7, 2001. and wire transfer of the down payment, not later than November 8, 2001. Failure to deliver the Equipment in accordance with the Contract shall subject VERNON to damages which are difficult or impossible to ascertain. Therefore, if ALSTOM shall fail to deliver the HRSG Units in accordance with the stated delivery dates and such failure shall be unexcused pursuant to any Change Orders or Force Majeure clause of this Contract, ALSTOM shall be responsible to pay to VERNON the following Liquidated Damages For the purposes of calculating Liquidated Damages for Delay of Delivery, each Delivery Group is considered to be completed when the last item of the Group is turned over to VERNON. For example, if the scheduled delivery date for modules is "30-October", the last module of the Group must be turned over by "30-October". For the purposes of calculating Liquidated Damages for Delay of Delivery, delivery will also be considered complete as long as the Delivery Group is delivered in a condition that does not prevent the erection'of the HRSG to proceed. ALSTOM's obligations for Liquidated Damages for each equipment group cease upon arrival FOB Jobsite. If any equipment arrives and is determined jointly by ALSTOM and VERNON to require rectification or repair work, it shall be recorded on a punch -list record of the equipment deliveries, and a plan to rectify shall be mutually agreed between the parties. - 25 - The `Backcharges' provisions of Appendix "4" shall apply to the rectification or repair work and the equipment group shall not be deemed to be delivered late and shall not be subject to Liquidated Damages. If failure to meet the Delivery 'Dates for the Shipment Group is solely caused by the Supplier, the Liquidated Damages will be calculated as follows: Delivery Date: 1 to 7 calendar days late 8 to 14 calendar days late Amount of LD per HRSG unit $ 1,000 per day per group $ 2,500 per day per group (starting on the 8tn-day) 15 to 21 calendar days late $ 5,000 per day per group (starting on the 15th day) More than 21 calendar days $7,500 per day per group late (starting on the 22d day) The maximum liability for Delay in Delivery of Equipment shall not exceed $7,500 per day per HRSG unit. B. VERNON agrees that the Liquidated Damages as provided herein shall constitute the exclusive liability of ALSTOM and the total remedy of VERNON for delay. C. ALSTOM'S aggregate Liquidated Damage obligation for delay shall in no event exceed ten percent (10%) of the Unit Value of the delayed unit. 32.2 Performance The HRSG package thermal performance guarantees are incorporated in the Wrap Contract performance guarantees. 32.3 Maximum Aggregate Liquidated Damages The maximum aggregate Liquidated Damages payable under this Contract shall not exceed 10% of the Contract Price. 33. NOISE TESTS ALSTOM'S guarantees concerning noise are specifically stated in Appendix "3". In the event that the Equipment is proven during the Performance Tests to have failed the noise guarantees as stated, ALSTOM shall be granted access to the Equipment at time - 26 - or times acceptable to VERNON to repair or replace the defective component which has been duly demonstrated to be deficient. 34. EMISSIONS TESTS Stack Emissions Tests shall be conducted by VERNON on the HRSGs following the completion of the Performance Tests. ALSTOM and the AQMD may witness the tests. Test instrumentation and methods shall be in accordance with the appropriate procedures required by the AQMD for each -specified pollutant. The purpose of the Emissions Tests will be to demonstrate that each HRSG unit meets ALSTOM's Emissions guarantees for the specified fuel, i.e. natural gas. The Emissions Tests will also serve as compliance test to demonstrate each HRSG'S Unit's compliance with all guaranteed Emissions limits specified in Appendix 1'3 11. The Emissions Tests shall be binding on ALSTOM to determine compliance with the guaranteed Emissions. The dates for conducting the Emissions Test shall be mutually agreed upon by VERNON, ALSTOM and the AQMD. If possible, the, tests shall be conducted within seven days of the Performance Tests, at conditions closely matching the Performance Tests conditions. If the Emissions Test is not performed within 30 days after completion of the Stability Test, then ALSTOM shall be given a reasonable time period to inspect and adjust the Equipment prior to the Emissions Test. If the guarantee levels are not met, ALSTOM shall, at its expense, make unit repairs to obtain the Emissions guarantees. Subsequent to those modifications, the Emissions Tests shall be repeated at ALSTOM's expense except for vERNON-furnished energy, fuel, and normal operating personnel. The schedule for repairs and modifications shall be subject to review and approval by VERNON and such corrective measures shall be completed as soon as practical following the initial Emissions Test. ALSTOM will have the right to review and comment on VERNON's test procedure, test data, test calculations and test report. If VERNON has not performed the Emission Test within one year from completed Commissioning or 18 months from delivery of the Equipment, all ALSTOM's obligations relating to this Emissions Test are waived. - 27 - 35. LIMITATION OF LIABILITY A. ALSTOM and ALSTOM'S Affiliated Companies' aggregate liability for all claims of any kind, whether based on contract, warranty, tort (including negligence) strict liability or otherwise, for all losses or damages arising out of, connected with or resulting from this Contract, its performance or breach (including indemnity, warranty and any Liquidated Damages) shall not exceed the price of the Equipment upon which such liability is based. B. EXCEPT FOR ANY LIQUIDATED DAMAGES SPECIFICALLY PROVIDED ,IN THIS CONTRACT, IN NO EVENT, WHETHER AS A RESULT OF BREACH OF CONTRACT, WARRANTY, INDEMNITY, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, SHALL VERNON, OR THEIR AFFILIATES, OR ALSTOM OR ALSTOM'S AFFILIATED COMPANIES BE LIABLE FOR INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT ,LIMITED TO LOSS OF PROFITS OR REVENUE; LOSS OF DATA; LOSS OF USE OF EQUIPMENT; COST OF CAPITAL; COST OF SUBSTITUTE EQUIPMENT, SERVICES OR FACILITIES; DOWNTIME COSTS; COST OF REPLACEMENT STEAM OR ELECTRIC POWER OR CLAIMS OF THIRD PARTIES OR CUSTOMERS FOR SERVICE INTERRUPTIONS. IN WITNES executed by an and year first ATTEST: S d WHEREOF, the parties have caused this Contract to be through their authorized officers on the date, month written above. Bruce V. Malkenhorst, City Clerk APPROVED AS TO FORM• Eduardo Olivo, City Attorney WITN S: Patricia F. Mire CITY OF VERNON By: Leonis C. Malburg, Mayor ALSTON Power Inc. I ustrial u nes Allen W. Bartholomew, President - 28 - Q APPENDIX I APPENDIX FORM OF LETTER OF CREDIT REFER GT CONTRACT LC APPENDIX 1 Page 1 of I APPENDIX 2 APPENDIX 2 INSURANCE SCHEDULE (ALSTOM) ALSTOM shall provide proof of insurance, within thirty (30) days of the full execution of this Contract, including a standard certificate of insurance, in at least the following amounts and coverage (combined single limit permitted): Hazards Automobile Liability Owned Automobiles Coverage and Limits Bodily Injury PropeM Damage Each Person Each Accident Each Accident 500,000 $1,000,000 $ 500,000 Hired Automobiles $ 500,000 $1,000,000 $ 500,000 Non Owned Automobiles $ 500.000 $1 000 000 $ 500.000 Workers' Compensation $ Statutory Employers' Liability $1.000,000 per employer H. Comprehensive General Liability General Liability $1,000,000 $2,000,000 $1,000,000 Premises Operations $1,000,000 $2,000,000 $1,000,000 Elevators (if applicable) $1,000,000 $2,000,000 $1,000,000 Independent Contractors $1,000,000 $2,000,000 $1,000,000 Products - Completed Operations $1,000,000 $2,000,000 $1,000,000 Contract Liability $1 000 000 $2,000,000 $1,000 000 a. The general liability policy shall contain the following special endorsements which shall be noted on or attached to the standard certificate of insurance: 1. An endorsement naming the City of Vernon, its officers, and employees as additional insureds under the policy only to the extent of ALSTOM's indemnity obligations assumed under the Contract. 2. An endorsement providing the City of Vernon thirty (30) days notice of cancellation or material reduction of coverage. 3. An endorsement providing coverage for all operations under this Contract. 4. Such other endorsement as may be required by addendum hereto. b. In addition to the standard certificate of insurance, proof of general liability coverage shall be furnished in the form checked below. Certification of the following proofs by the insurance agent or broker will be accepted: X For each policy, a notarized letter from the underwriter or carrier certifying that the coverage and statements in the standard certificate of insurance (attached thereto) are true and correct and that the signator is an officer authorized to so certify. A copy of each policy certified by an officer of the underwriter or carrier and notarized. APPENDIX 2 Page 1 of 1 APPENDIX 3 APPENDIX 3 PERFORMANCE DATA ALSTOM Proposal T1271a Section 3 A3.1 Operating Conditions The heat recovery boiler is designed to operate in accordance with the operating conditions in the following tables and the following supplemental data. Blowdown — continuous - Intermittent % Up to 1% % Up to 5% The HRSG will be designed and will operate in accordance with the following design requirements: Combined Cycle Plant Duty Cycle Base Loaded allow for 75 starts/yr 5 days/week 24 hr.s/day 52 Hot starts, 23 Cold starts Altitude feet 182.32 R Design atmospheric Press, psia 14.60 Design outdoor temperature, bulb, T & RH 75F/50% RH Design Outdoor min/max temperature & RH 350F/300/o//1050F/85% Design Indoor Temperature, dry bulb T NA Design Wind speed, MPH 75 Design Code UBC 97 Exposure Category C rtance Factor 1 Design Snow Load 0 UBC Earth quake zone, Plus California Standards 4, C 97 Iniportance Factor C Category 3 1 Site Soil Profile Classification SD Near Source Factor Na 1 Near Source Factor Nv 1 Ca 0.44 Cv 0.64 It is recognised that the performance of the boiler covered in this proposal cannot be exactly predicted for every possible operating condition. Consequently, any predicted performance data submitted is intended to show probable operating results that cannot be guaranteed except as expressly stated in this proposal. The HRSG will achieve the guaranteed performance when in a clean condition, tested and operated in accordance with our recommendations and operating under the following conditions: Quantity of Blowdown Nil Feed and Boiler water quality To ASME "Consensus on Operating Practices for the Control of Feedwater and Boiler Water Quality in Modern Industrial Boilers" Instrumentation & Controls In accordance with ALSTOM power Operation and Maintenance Manual HRSG operation In accordance with ALSTOM power Operation and Maintenance Manual APPENDIX 3 Page 1 of 7 A3.2 Thermal Performance Guarantee Basis: Not used — Refer Performance Wrap Document A3.3 Anticipated & Guaranteed Thermal Performance: Not used — Refer Performance Wrap Document APPENDIX 3 Page 2 of 7 j A3.4 HRSG Guaranteed Emissions A6.1.1 Guaranteed HRSG Emission Levels Unit Guarantee Basis NOX 5 2.0 ppmv at 15 % 02 Dry I hour average, as NO2 CO 5 2.0 ppmv at 15 % 02 Dry 3 hour average VOC <_ 1.2 ppmv at 15 % 02 Dry 1 hour average, non -methane, non -ethane as CH4 PM10 <— 6.0 lb / hr / HRSG unit 1 hour average NH3 5 5.0 ppmv at 15 % 02 Dry 1 hour average A6.1.2 Conditions for Guaranteed HRSG Emissions The Guaranteed HRSG Emissions are valid for the following operating conditions: - Gas turbine load 60-100 %, Steady-state, continuous operation - HRSG duct burner firing only in gas turbine load range 90-100 % - Ambient temperature range 40 F — 93 F - Gas turbine & HRSG operation in accordance with ALSTOM Power recommendations - GT and HRSG duct burner fuel as per Section A3.4.3 - Total sulfur content in fuel is <_ 0.5 grain / 100 scf. Any sulfur contained in the fuel will pass through the system in equilibrium. Please note that all the sulfur in the fuel is expected to be converted to SOx and that the level is beyond our control A6.1.3 Fuel Specification Fuel Component Formula Composition Component (Weight-%.) Methane CH4 95.52 95.836 Ethane C2116 2.10 2.107 Propane C3118 0.00 0.000 I -Butane I-C4Hlo 0.04 0.040 N-Butane N-C411lo 0.06 0.060 I -Pentane I-CSH12 0.01 0.010 N-Pentane N-051112 0.01 0.010 Hexane C61114 0.02 0.020 Carbon Dioxide CO2 1.25 1.254 Nitrogen N2 0.66 0.662 Total 99.67 100.00 Sulfur S 5 0.5 grain / 100 scf Heat content 49 011 kJ/kg (LHV) 21071 Btu/Ib (LHV) LHV = Lower Heating Value' ' The determination of the lower heating value is based on ISO 6976:1995 'Natural gas - Calculation of calorific values, density, relative density and Wobbe index from composition Reference values for LHV is for combustion 25 °C, for metering 1.01325 bara/ 0 °C and valid for dry gas. APPENDIX 3 Page 3 of 7 t D The fuels must fulfil the requirements in ALSTOM Power fuel specifications "GTX100 Gaseous Fuels, Survey and Requirements" GTI X241010E Edition 2. The determination of the lower heating value for liquid fuel is based on ASTM D 4868-90. A6.1.4 Comparison of test results with emission guarantee values Measured values must be corrected for site conditions deviating from the reference conditions. The guarantee is considered fulfilled when the guaranteed value is higher than the corrected value considering the determined test uncertainty of the corrected test result. The procedure to determine the test uncertainties must be agreed upon. NOx corr < NOx guar COcorr < COgua VOCcon.5 VOCCguar PM 10cor-r. <_ PM 10gua NH3COrr < N113guar NOx Corr = Corrected measured emission value for NOx COcorr = Corrected measured emission value for CO VOCcorr = Corrected measured emission value for VOC PM10corr = Corrected measured emission value for PM10 NH3corr. = Corrected measured emission value for NH3 NOx guar = Guaranteed NOx value COgua = Guaranteed CO value VOCguar = Guaranteed VOC value PM10guar = Guaranteed PM10 value NH3gua = Guaranteed NH3 value A3.5 Steam Purity The steam purity at the outlet of the superheaters is guaranteed not to exceed of 0.085% solids carry-over. This can be provided only if the operation of the boiler and makeup water are in accordance with ALSTOM Power recommendations for the boiler drum water. A3.6 Noise NEAR FIELD APPENDIX 3 Page 4 of 7 The near field sound pressure levels of the BRSG equipment are guaranteed not to exceed 85 dBA at 3 feet from the surface at a height of 5 feet above ground, with the exception of the gas turbine expansion joint. NEAR FIELD SILENCERS The near field sound pressure levels of the BRSG steam vent silencing equipment are guaranteed not to exceed 105 dBA at 3 feet from the surface at a height of 5 feet above ground, with the exception of the gas turbine expansion joint. FAR FIELD Far field sound pressure levels are NOT guaranteed. General Note: All guarantees and predictions described above are made under "acoustic free field divergence" conditions. All data is applicable for outdoor equipment, and does not include any effects of extraneous sources other than those identified, or reflections from building or other equipment surfaces. A3.7 Auxiliary Power Consumption Not used — Refer Wrap Contract APPENDIX 3 Page 5 of 7 10 A3.8 Preliminary Anticipated Loads / Utility Consumption 125 V AC. 60 117,1 Burner Management Panel 10 Amps (UPS) per HRSG 15 Amps (gen service) per HRSG Ignitor Spark 28 Amps (in rush) per HRSG 12 Amps (while spark) per HRSG Drum Level 10 Amps per HRSG Water/Steam Analysers 10 Amps per HRSG 480 V AC, 60 Hz, 3 0 Scanner Cooling Fan #1 12 Amps per BR.SG Scanner Cooling Fan #2 12 Amps per HRSG SCR Blower Fan #1 25 Amps per HRSG SCR Blower Fan #2 25 Amps per HRSG LP Feed Pump #1 (65 kw) 95 Amps full load @ 0.85 pf LP Feed Pump #2 (65 kw) 95 Amps full load @ 0.85 pf 6,600 VOLT, 60 Hz, 3 HP Feed Pump #1 (1065 kW) 110 Amps full load @ 0.85 pf HP Feed Pump #2 (1065 kW) 110 Amps full load @ 0.85 pf INSTRUMENT AIR Valves Operational Usage 5.0 SCFM per HRSG PLANT AIR SCR Atomising Air 50 SCFM per HRSG COOLING WATER LP Water Cooler 5 GPM per HRSG LP Steam Cooler 5 GPM Per HRSG HP Water Cooler 5 GPM Per HRSG HP Steam Cooler 5 GPM per HRSG DA Water Cooler 5 GPM per HRSG Condensate Cooler 5 GPM per HRSG Blowdown Cooler 8 GPM per HRSG NATURAL GAS Max Firing 78.5 MMBTU/hr (LHV) per HRSG 23.0 MW Includes overfire margin APPENDIX 3 Page 6 of 7 �J A3.9 TECHNICAL CLARIFICATION & DEVIATION LIST # Area Comment 1 Blowdown Pit The HRSG height is optimised to reduce the total installed cost of HRSG steelwork (particularly for a high seismic locations). As such, in order to gravity drain the HRSG, it requires the use of a small blowdown tank pit located in the foundation adjacent to the HRSG. The blowdown tank, instruments and transfer pumps are located in this pit. This pit is to be designed and provided by the purchaser. 2 Fuel Gas We have not allowed for mains nat gas pressure reducing: our design assumes 30 psig nat gas is available at the terminal point. 3 Washing Our design has sloped floors with drains to remove any water that is introduced, however it does not include any water washing equipment or piping systems. Washing of the modules would be a manual operation from within the HRSG. 4 Chem Cleaning We have not included chem cleaning equipment or chemicals in our price. It is our experience that this is most economically performed by a 3'd party specialist contractor. . 5 Steam Purging We have not included for any steam blow equipment. 6 Labeling We have not included for providing equipment labeling tags. As a suggestion, it is our experience that a single tag supplier can more economically install a common system of tags for all plant equipment. We will provide a detailed list of equipment to be tagged and the appropriate identification for such a supplier. 7 Training A 4 day class room training program at site is included in our proposal. We decline to offer lump sum pricing for training at other sites at this time, however we can offer per diem rates as detailed in Appendix 4. 8 Codes The boiler pressure parts are designed to ASME 1. The structure will be designed to UBC CODE. Access equipment shall be designed per OSHA requirements. We have not allowed for any local regulations, such as local boiler inspector rejection of ASME Code Cases and the like. 9 Insulation Our design assumes a wind velocity of 1.0 nits for all insulation calculations. 10 Pipe Stress Our offer is based upon all pipe stressing from the Steam Turbine to the HRSG Analysis terminal point as defined in Appendix 5 to be performed by the Purchaser, based upon allowable terminal point loads provided by ALSTOM. ALSTOM will also check the Purchaser's arrangement, however responsibility for main design is by Purchaser. APPENDIX 3 Page 7 of 7 APPENDIX 4 APPENDIX 4 PROGRAM OF WORKS, DELIVERY, COMMISSIONING & QA A4.1 Engineering Deliverable Milestones ENGINEERING DELIVERABLES Submittal Schedule Contract Start = 10 October 01 1sT Final Issue Issue permitting General Arrangements & pr6rn HRSG weights 3 WKS - Foundation & Loading Diagram — main HRSG 8 WKS 16 WKS Foundation Loads — Dead, Live, Wind 8 WKS 16 WKS Foundation Loads — Seismic 8 WKS 16 WKS Structural Steel General Notes 8 WKS 16 WKS Interface Terminal Point Drawings s 8 WKS 16 WKS General Arrangements 8 WKS 16 WKS Thermal Performance Data Sheets 8 WKS 14 WKS Piping & Instrumentation Diagram 8 WKS 16 WKS Pressure Part Arrangements 12 WKS 18 WKS Functional Specification i 12 WKS 18 WKS Structural Steel Arran ement 12 WKS 18 WKS Arrangement of Steam Lines 12 WKS 18 WKS Burner & SCR Arran ements, P&IDs 16 WKS 22 WKS Valve List 12 WKS 40 WKS I10 List 16 WKS 22 WKS Utility Consumers 16 WKS 22 WKS Instrument Location 16 WKS 22 WKS Arrangement of Steam Drum 18 WKS 24 WKS Safety Valve Data 24 WKS 30 WKS HP Desu rheater Data 24 WKS 30 WKS Installation & Commissioning Details 24 WKS 30 WKS Erection Procedure & Drawings 26 WKS 32 WKS Trim Piping — Drum Instruments & Gauges --- 36 WKS Trim Piping — Suggested Routing --- 36 WKS Drain Manifold Arrangement --- 36 WKS Pipe Supports --- 36 WKS Field Weld Data Sheets --- 36 WKS Master Bill Of Materials(including Grouping Definition 40 WKS 48 WKS Performance Test Procedure TBA O&M Manuals TBA APPENDIX 4 Page 1 of 8 t1p) A4.2 Equipment Delivery Milestones Refer Section 2 of Contract A4.3 Equipment Packing All parts will be marked for identification and conditioned suitably for shipment to the desired location. Each loose piece or assembly shall be properly protected to prevent damage during normal shipping and handling. Spare parts and special tools shall be packed separately. Each package shall be marked clearly with all necessary information. Packing lists shall be attached to each packing at a conspicuous point, with cross references to the master packing list. A4.4 Transportation And Handling All unloading and handling equipment, direction and labour at site is by Purchaser. Note we have provided staged delivery for simplified erection of the `0' Sections, 2 per day, with 1 day break between, to the Purchaser's lifting equipment utilising heavy haul transporter equipment. APPENDIX 4 Page 2 of 8 a A4.5 Major Component Shipping Summary Per HRSG Equipment Label Total Number of Pieces Maximum Piece Size L x W x H (ft) Maximum Weight Per Piece lb Total Weight (lb) Modules(including side structure, roof, floor, baffles piping, drains, vents, * Module 1 1 67' x 8' x 15' 130,000 130,000 Module 2 1 67' x 8' x 15' 150,000 150,000 Module 3 1 67' x I F x 15' 240,000 240,000 Module 4 1 67' x 13' x 15' 325,000 325,000 Module 5 1 67' x I F x 11' 300,000 300,000 Total Weight 1 145 000 Inlet Duct(including re -insulated and lined casing, modularized Module 1 * 6 + Struct Steel 10' x 10' Panels 2,000 10,000 Module 2* 9 + S. Steel 10' x 10' Panels 2,000 20 000 Module 3* 12 + S. Steel 10' x 10' Panels 2,000 30,000 Total Weight 60,000 Other Modules Duct Burner * inc. panels & steel 24 panels + 1 portal frame 10' x 10' Panels 20m column 2,000 panel 11,000 col. 60,000 SCR * (inc. panels & structural steel 36 panels + 2 portal frames 10' x 10' Panels 20m column 2,000 panel 11,000 col 85,000 Access Alleys 16 panels 15' x 3' Panels 2,000 0,7000-:::- 116:5 Total Weight Steam Drums(inc lu - nozzles, saddles, su its HP Drum 1 20' x 8' x 9' 60,000 60,000 LP Drum 1 15' x 8' x 9' 12,000 12,000 Total Weight 72,000 Stack 3.65m dia, 33 m Ion Cans 2 55' x 3.65 dia 75,000 140,000 Balance of E ui ment Piping >2" ools shipped loose 40,000 Trim Piping <=2" (shipped loose 10,000 Stairs, Grating, Handrails, Ladders, Cages, Platform Support Steel, Silencer Support Steel (shipped loose Later Sub -Vendor Equipment (shipped per vendor standard Later Notes * Joints to be field insulated by erector. Materials supplied by AP. APPENDIX 4 Page 3 of 8 r A4.6 TRAINING COURSE ALSTOM's offer includes a four (4) day training programme by the Commissioning Representative . Our training program will familiarise the operators of each shift with the plant. These will take the form of interactive classroom type classes at the purchaser's plant. A typical program is outlined below: Course Format Number of attendees Max 12 Duration of course 4 days, 8 hours per day Location of course Plant Site Timing of course Around 14 months after start of Contract Course objective To facilitate understanding of the design and construction of the boiler and its associated auxiliaries Training Course Outline 1. INTRODUCTION 1. Course Outline B. Course Schedule C. Plant Arrangement 2. ENGINEERING FUNDAMENTALS Water -to -Steam Conversion 1. Steam tables 2. Types of boiling 3. Latent heat of vaporisation/condensation 4. Sensible heat 5. Saturated and superheated steam B. Heat Transfer 1. Conduction, radiation and convection 2. Temperature differentials 3. Effects on boiler operation C. Principles of Circulation 1. Density difference 2. Circulation ratio 3. Departure from nucleate boiling 3. SYSTEMS Introduction to Boiler, 1. Boiler type 2. Boiler capacity 3. Boiler efficiency 4. Orientation to boiler APPENDIX 4 Page 4 of 8 S B. Water Circuits 1. Economiser 2. Generating Bank 3. Steam drum and Internals 4. Blowdown system C. Steam Circuits 1. Main steam 2. Hood Steam 3. Desuperheater D. Burner System 1. Burner Control equipment 2. Burner Operation 3. Flame Safeguard System E. SCR System 1. SCR Principles of Operation 2. SCR Control equipment 3. SCR Operation 4. SCR Maintenance and Protection 4. AUXILIARY EQUIPMENT 1. Safety Valves l . Function and, location 2. Description 3. Operation and Care 4. Precautions B. Water Gauges and Water Level Indicators 1. Function and location 2. Description 3. Operation and Care 5. SYSTEM CONTROLS 1. Level Controllers B. Steam Temperature Controllers C. Blowdown Systems D. Natural Gas Firing Controls F. SCR System Control 6. OPERATIONAL PROCEDURES A. BOILER APPENDIX 4 Page 5 of 8 t 1. Pre -operation Check-out 2. , Initial Filling of the Boiler 3. Start-up from Cold 4. Start-up from Hot 5. Shutdown to Hot 6. Shutdown to Drain 7. General Notes on Boiler • Feedwater treatment • Boiler water conditioning • Steam purity B. BURNER 1. Pre -operation Check-out 2. Purge & Light -off Sequences 3. Increasing/Decreasing Load 4. Fuel Change -out 5. BMS Safety Interlocks 7. EMERGENCIES AND PROCEDURES A. Combustion 1. High Flame Temperature 2. Low Flame Temperature 3. Loss Of Scanner B. Boiler 1. High Water 2. Low Water 3. Tube Leaks 4. Loss of Feedwater Supply 8. INTRODUCTION TO BOILER MAINTENANCE 9. COURSE QUIZ CRITIQUE APPENDIX 4 Page 6 of 8 A4.7 QUALITY ASSURANCE General Information The nature of the work undertaken by ALSTOM Power Ltd. over many years, involving compliance with stringent standards and statutory requirements, has necessitated the institution of work practices providing a high degree of quality assurance. These work practices are formalised in Operating Procedures which set out departmental and individual responsibilities with respect to control, checking, review, interfaces, documentation, document control and records for each function activity such that they will comply with the requirements of ISO 9001 and ASME Boiler `S' Stamping documentation systems. ISO 9001 ALSTOM Power Ltd is certified by Lloyds Register to comply with AS/NZS ISO-9001:1994 for the full range of operations. The Scope of certification is `Design, procurement, project management, installation and commissioning of steam generation, power generation, and pollution control equipment and the repair, maintenance and retrofit of such plants and equipment, including the stockholding and sales of associated spare parts ". ASME S Stamp ALSTOM Power Ltd is certified by the American Society of Mechanical Engineers (ASME) to comply with the ASME Certified Boiler `S' Stamping documentation system. The Scope of certification is `Design of Power Boilers with responsibility for compiling Code certification and for stamping the Boiler at field sites controlled by ALSTOM Power, with fabrication and erection sub- contracted to holders of appropriate ASME certificates ofAuthorisation. " Copies of certificates are attached for your reference. Quality Manual As an ISO 9001 certified company, ALSTOM has a documented Quality Assurance program which describes the methods used to assure that all the products within the ALSTOM's scope of supply will be engineered, designed and fabricated in compliance with the applicable codes, the Purchaser's specifications and relevant ALSTOM standards. The Operating Procedures are approved by Company Management and formalised into an overall Quality Assurance Program by reference in the Company Quality Assurance Manual. A copy (uncontrolled) of our Quality Manual will be submitted for your information upon request. Specification Review ALSTOM performs a detailed review of the Purchaser's Specification and ensures that the orders to vendors contain all of the required information for the project. If any discrepancies or ambiguities sub - are found to exist, ALSTOM seeks written clarification from the Purchaser. APPENDIX 4 Page 7 of 8 A Approved Suppliers ALSTOM maintains an approved supplier list by evaluating vendors on a periodic basis. No orders can be placed to a vendor that has not been approved by an evaluation. The evaluation used on the vendors is based on ISO 9001 requirements and the nature of the equipment being supplied by the vendor. Inspection and Tests ALSTOM ensures that the entire Purchaser's required inspection and test procedures are established through the orders. If the Purchaser has indicated any inspections or tests to be witnessed, ALSTOM ensures that the Purchaser is properly notified that the inspection or tests are to be performed. The Purchaser's right of access to inspect any work being performed on their project is established for all orders placed for the project. Quality Documentation The Supplier reviews all required quality documentation from the vendors for accuracy and correctness prior to sending them to the Purchaser. For example, for an ASME boiler, the ASME Master Code Data Report is furnished. These ASME Code Data Forms are signed by our vendors' third party inspectors as meeting ASME requirements. The vendors that supply these components maintain radiographs, other non-destructive test results, furnace charts of heat treatments and records of dimensional inspections for a minimum of five (5) years from the generation of the record. APPENDIX 4 Page 8 of 8 ej APPENDIX 5 APPENDIX 5 SCOPE OF SUPPLY A5.1 SCOPE OF SUPPLY Item Equipment Base Offer Option By Others Not 'd Scope changed subsequent to original proposal A.01 Ammonia Slip - Provisions for NH3 slip from 10.0 to 5.0 ppmvd NH3 lhr 10 av Guarantee X A.02 NOx- Provisions for NOx From 2.5 to 2.0 ppmvd @ 15% 02 NOx guarantee X A.03 Provisions for CO from 6.0 to 2.0 ppmvd @ 15% 02 ( 3hr roll avg) Guarantee X A.04 Ammonia Storage - 8000 gal API or ASME tank with transfer pumps system no containment X Provisions to `hand' SCR catal t loa ' monorails X Provisions to partially modularise DA for insulation & valves, root valves and small bore iProvisions X for 60' center line itch CL of BRSG stacks X S lin - H le anal ser for condenstae return XStack r D r X Construction R Services : Add 90 calendar da , 120 total X Provide steam outlet terminal points at last HRSG column, - alloy i , s rts, ers, etc X Instrument air, s lin & dosi tub' , X Provisions for removal of flame scanners `online' X A.14 Item Equipment Base Offer Option By Others Not R d 1.0 Boiler 1.01 Foundation Bolts, nuts, washers supply X 1.02 Base support steelwork X 1.03 Platforms and galleries X 1.04 Main access stairs tower / emergency egress ladder X 1.05 Transitions / Casing / ducts / insulation within T.P. X 1.06 HRSG inlet expansion joint X 1.07 HRSG-side inlet exp. Joint backing fates X 1.08 GT-side inlet exp. Joint backing lates X 1.09 LP & BP Economisers X 1.10 LP & HP Evaporator X 1.11 LP & BP LupSheaters X 1.12 LP & BP Drums X 1.13 LP & BP drum -level -control valves X 1.14 Desuperheater Control Valve Station X 1.15 Intersta a BP De heater X 1.16 interconnecting feed/steam pjp'Eg pip'within T.P X 1.17 BP & LP steam flow (yen es X 1.18 Feedwater Spraywater flow meters orifice X 1.19 Motorised BP & LP Steam Start -Up Vent X APPENDIX 5 Page 1 of 9 II Item Equipment Base Offer Option By Others Not Re 'd 1.20 HP & LP Continuous & Intermittent Blowdown Valves X 1.21 HP & LP Main Steam Safety Valves lx X 1.22 HP & LP Drum Safety Valves 2x X 1.23 Electro-Assist Safety Relief Valves X 1.24 HP & LP safety valve & start-up vent silencers,105 dBA X 1.25 Silencer Support Steelwork X 1.26 Blowdown Tank, vent & collection piping to it X 1.27 Boiler Drain, Vent, Trim Valves to ASME Code X 1.28 Sootblowers Incl. Motors, controls, piping, access X 1.29 Provision in !gout for future installation of sootblowers X 1.30 Ducting and casing as required by design X 1.31 Boiler & Piping insulation, and cladding, external X 1.32 CS, un-insulated exhaust stack 110 X 1.33 CS Stack Damper, actuator, access platform,personal protection, X 1.34 Stack silencer, as required for gteed noise X 1.35 Alkaline Boil -out chemicals X 1.36 Temporaryin steelwork for bodout, steam blow X 1.37 Boil out & Flushing connections X 1.38 Temporary equipment to protect sensitive HRSG parts during boil out, flushing and blow out X 1.39 Nitrogen connections including stop and check valve at steam drum X 1.40 Nitrogen supply system, including lines to ground level, connection,bottle rack and pressure reducing station X 1.41 Cooling water piping (as re 'd X 1.42 Fire water piping & equipment X 1.43 Plant air piping X 1.44 Instrument air piping (as r 'd by equip)X 1.45 Inlet duct noise shroud, 2 sides & t as r aired by design) X 1.46 Painting - top painting& coating X 1.47 Painting- final paintingmaterial X 1.48 Painting- final touch paint X 1.49 Consumables - For first filling of the equipment (EXCLUDES AMMONIA FOR SCR X 1.50 Pit -mounted blowdown tank & collection Lines X 1.51 Blowdown tank transfer pumps 2x X 1.52 Blowdown tank discharge heat exchanger X 1.53 Piping & Boiler Insulation & cladding X 1.54 Gas tight HRSG casing of cold case design X 1.55 Lower access doors for HRSG casing. X 1.56 Outlet transition piece from HRSG to main stack X 1.57 Expansionjoint at main stack connection X 1.58 Facility for p o2 tm of painters cradle at stack X 1.59 Platform to facilitate emission measurement X 1.60 1.61 Access Galleries for HRSG U Level enciosur thouse X X 2.0 Steam & Water Dosing & Sampling 2.01 Sample collectors at sample point and root valve X 2.02 Sampling coolers X 2.03 Sampling analysers for 02, pH, conductivity, per Section 6 Description X 2.04 Chem Injection connection at In'. Point & root valve X 2.05 Chem Nection distribution tubingX TTT� C Arrralr„IAL a Page 2 of 9 QJ Item Equipment Base Offer Option By Others Not R 'd 2.06 Dosing system X 2.07 Dosing boil ' , bundin , shading X 3.0 Natural Gas Burner Equipment 3.01 Natural Gas Burner & Pilot System X 3.02 Natural Gas Fuel Control Train X 3.03 Individual Gas Runner Isolation X 3.04 Natural Gas vent piping to upper elev. Level X 3.05 BMS flare safety system & field equipment X 3.06 Cooled view ;,:;s for flame � tion X 3.07 Scanner Cooling Air Blowers 2x , distnbution piping X 3.08 Mains Fuel PRV station to 30 psig) X 3.09 Nat gas fuel meter X 4.0 Electrical 4.01 MCCs X 4.02 Distribution boards X 4.03 Cabling from MCCs & distribution boards X 4.04 Cable Trays X 4.05 Boiler area lighting & small power X 4.06 Earthing lugs X 4.07 Stack Aircraft warning lights X 5.0 Instrumentation 5.01 Instruments for safe oper. of boiler to meet code requirements, incl. 2/3 drum level control X 5.02 Drum Level Gauges 2x HP & LP X 5.03 Hydrastep-style drum level indication 1x HP & Ix LP X 5.04 Boiler inlet / outlet temperature monitoring l x each X 5.05 Burner monitoring 4x , 8x down -stream) X 5.06 SCR inlet gas temperature monitoring 2x X 5.07 Superheater metals temperature monitorin X 5.08 DCS or Scada system X 5.09 Condition monitoring ment for motors X 5.10 Local Junction boxes for local instrument X 5.11 Supply from instrument to junction box X 5.12 Supply instrument 'mVuse tubing X 5.13 Supply wer and control cable trays X 6.0 Feedwater System DA incl suort structure & access rovisions X r DA safety, level control, spray & pegging valves, interconnecting i in within TP r P&ID X Feedwater cooler / Cond. Return heat exchanger incl. 3-way control valve for tenaperature control and isolations per P&ID X 6.04IDA 2x 200% HP & LP Feedpumps and valves r P&ID X 6.05Interconnecting feed, economiser extraction, piping from pumps to HRSGs X 6.06Single flanged connection for each of cond. return, make-up, pegging steam at DA elevation platform X 6.07DA outlet samplingconnection X 6.08 sample cooler, analyser X 6.09 1. DA level transmitter & gauge glass X APPENDIX 5 Page 3 of 9 d Item Equipment Base Offer Option By Others Not Re 'd 6.10 External insulation & cladding X 6.11 Ox -Scav tank & injection pump, X 7.0 Emission Control Equipment 7.01 Inlet EPA Port for GT Exhaust Sampling lx X 7.02 Stack EPA ports For Sampling 4x X 7.04 Analysers for NOx, SOx, CO, Opacity etc X 7.05 SCR catalyst & housing frame X 7.06 SCR catalyst monorail and liffing hoist X 7.07 - SCR dilution air blowers 2x & piping X 7.08 Ammonia injection grid & sub distribution X 7.09 Ammonia Flow Control skid X 7.10 Ammonia skid wiring & Function box X 7.11 Insulation for SCRs stem piping X 7.12 A ueaous ammonia flow meter X 7.13 A ueous ammonia storage 8000 al / transfer pumps X 7.14 SCR control equipment (eg PLC, DCS X 7.15 CO / VOC catalyst access door X 7.16 / VOC catalyst X __J_CO 8.0 Civil engineering 8.01 Civil design X 8.02 Foundation, roadways and buildings X 8.03 Site survey and geotechnical investigation X 8.04 Foundation Bolt Design X 8.05 Foundation Bolt Supply for Alstom equipment X 8.06 Stack bolting template X 9.0 Spares & Misc 9.01 Erection and commissioning spares X 9.02 1 year operation lubricants X 9.03 2 rational es X 9.04 S ial tools as necessary)X 9.05 Ten (10) copies of ALSTOM's standard Operation & Maintenance Manual for the equipment X 10 Project Engineering, Management, Services 10.01 Project design & contract management X 10.02 Delivery to site X 10.03 Erection & Installation Manuals, Drawings X 10.04 Operating and Maintenance manuals X 10.05 Construction Representative 120 calendar days) X 10.06 Commissioning Represen4tive 30 calendar days) X 10.07 Erection Consurnables and weldingmaterials X 10.08 4 Da T Course for tors at site X 10.09 GA & Assemblydrawings and PID's X 10.10 rt Duties on foreign -sourced components X 10.11 7 Da Attendance of Purchaser -Run Performance Test X 10.12 HRSG Thermal Performance Computer Simulation Model and drawings X 10.13 Equipment design engineering, drawings, interface information and project management X AMYL+ IN DIA D Page 4 of 9 Item Equipment Base Option By Not Offer Others Re 'd 10.14 P&ID's, General arrangement drawings and foundation loads X 10.15 Instrument loop diagrams from Instruments to Junction Box, within X BRSG boundary limit 10.16 Preparation of instrument schedules, cable schedules, alarm schedules, X loop diagrams, logic drawings, instrument tubing details 10.17 Control logic, written description, logic diagrams, and necessary X equations for the combustion system, for use with the customer's overall plant control system CS or other). 10.18 Wiring diagrams and details for all equipment within ALSTOM X scope 10.19 Inspection and material certificates in accordance with statutory X requirements and ALSTOM Power accredited Quality Assurance S tem 10.20 Not Used X 10.21 Manufacturing and manufacturing supervision X 10.22 QA control during : design, manufacturing, erection and X commissioning 10.23 Scheduling & expediting and schedule of detailed engineering and X manufacturing 10.24 Pre -shipment inspections, examinations & tests X 10.25 Cleaning, including removal and disposal of residuals at the X manufacturing facility 10.26 Shop pre -assembly of certain components X 10.27 Protection and' acjdn for shipment X 10.28 Pre shipment storage where AP early completion X 10.29 B RSG Flow Model Test (computer simulation X APPENDIX 5 Page 5 of 9 P4 E A5.2 TERMINAL POINTS Condensate Return Boiler Feed Water LP Pegging Steam LP Econ Recirc Water HP / LP Steam Safety Relief valves Waste water / drains Casing Drains Chemical injection - Single BW connection at fixed anchor point on HRSG support structure, at 30 ft elevation, last column of HRSG before stack of Unit 2 (same as HP&LP Steam for Unit 2) - N/A — Internal to AP scope - N/A — Internal to AP scope - N/A — Internal to AP scope -Single BW connection at fixed anchor point on HRSG support structure, at 30 ft elevation, last column of HRSG - At outlet of safety valve vent silencers - Blowdown tank pump outlet flange connection - At outlet of capped floor drains - At outlet of dosing pump connection - At inlet to chem dosing valve connections at inj. point Exhaust Gas - North/Easting - N/A — internal to AP scope - Vertical — GT centerline is 12'0" from top of concrete pad all grouting is included in the 12'0" dimension. Natural Gas - At welded connection inlet to burner valve train Ammonia - At single outlet connection of ammonia pump skid At single inlet connection of ammonia flow control skid Flue gas - At outlet of stack Instrumentation air - At instrument air consumer inlet Plant air - At plant air consumer inlet Steam/Water Vents - At outlet of block valve / extension Cooling water - At connection to the cooled plant item Steelwork - At upper surface of grouting, At --0.5" above the Purchaser's foundation (imbedded materials supplied by AP) Electrical - At connection to device terminals Instruments - At connections to field instrument junction boxes APPENDIX 5 Page 6 of 9 D.� Potable water - N.A. By Others Fire Water - N.A. By Others Small Power - N.A. by Others . Lighting - N.A. by Others Lightning Protection - Grounding connection at Boiler base A5.3 SCOPE EXCLUSIONS Major exclusions are shown in the tabulated chart in Section A5.1 Only items shown as in our supply scope are included. Items shown as "Options" are offered as optional price. APPENDIX 5 Page 7 of 9 A5.4 LIST OF MAJOR EQUIPMENT SUPPLIERS ALSTOM Power Ltd use a number of approved suppliers and operate on the basis of procuring equipment and materials at competitive price levels. It is not possible therefore at this stage to nominate specific sub - vendors for the various items of plant. We have however, listed below a number of sub -vendors who are approved by us and from whom we have obtained quotations for this project. In the event of an order, we also may consider other equivalent approved suppliers. Where Purchaser's preferred sub -vendors have been nominated, the final selection will be made to comply with such µ t- requirements. Before placing of orders we would of course inform you. Please note that our Proposal is submitted on the above basis and although throughout the body of our Proposal documents we refer to particular sub -vendors equipment by name or type, to ensure our competitive position remains in the event of an order, we reserve the right to change to an equivalent supplier. We would of course provide you with any changes to the technical data should this be required. Pressure Parts - PT. Energy System, Indonesia (ALSTOM Power) - Transtherm Engineers, Malaysia - Senior Thermal Engineering, Australia - Appollo Engineering, Australia - Vitana Phaisal, Thailand - AP Portugal (Setubal) Pressure Tubing - Nippon Steel, Kawasaki Steel Mill, Priceitomo, Korean Steel, Sumitomo, V&M France Finning - Sam Young Heat Exchange Co., ALSTOM Power, Babcock Energy UK, Biraghi Canada, Fin -Tube, High Pres Valves - Control Components, HP, Fluval, Samshin, Velan Low Press Valves - Austral, Crane, Keystone, BTR, Trivalve, Ilshin, Samshin, BF Valves, Velan Control valves - Samshin, Fisher, Leslie, Masoneilan Copes Vulcan, ABB Control Valve, Yamatake Control Components Press Reducing Eqpt - Masoneilan, Trivalve, BTG- Eur Control, Fisher Safety/Relief - Consolidated, Crane, Kungle, Crosby Desuperheater - Alstom Power, Fisher, Yarway, Copps Vulcan Expansion Joints - Burgmann, Garlock, General, Goodall, Goodyear, Holtz Mercer, Pathway, Senior Flexonics, Townley Insul& Cladding - Hannlon Refractories, Bradford Insulation, Best Insulation, Bestobell, Lafarge, Prestige Insulation, Owens-Corning, Johns- Mansville Corp, Carborundum, Thermal Ceramics, Premier APPENDIX 5 Page 8 of 9 #- Instruments - ABB Kent -Taylor, Foxboro, Yokagawa, Honeywell, Rosemount Pumps - KSB-Ajax, Sulzer, Kelair, Dresser -Rand, Warman Combustion Equip - ALSTOM Power, COEN, John Zink, Forney, Todd, Detroit Stoker Company, Utility and Recovery Engineering Fans - ABB Fans, Howden, Alphair Electric Actuators - Auma, Limitorque, Rotork Gage Glass Columns - Jerguson, KTEK, Clark Reliance, Yarway Emissions Monitoring - ABB Instrumentation, Rosemount Analytical Emissions Control - Alstom Power, Mitsubishi Heavy Industries, Peerless, Hitachi, Englehard, Emerachem Steam&Water Sampling - ABB Instrumentation, Rosemount Analytical Yokogawa, Foxboro, Great Lakes, APPENDIX 5 Page 9 of 9 APPENDIX 6 APPENDIX 6 TECHNICAL DESCRIPTION A6.1 HRSG DESIGN A6.1.1 Modularised HRSG Design Concept The heat absorbing sections of the ALSTOM OCC Heat Recovery Steam Generator are made up of shop - assembled pressure part modules. By shop -modularising the HRSG, significant site -erection time is saved. Most of the casing and piping welds that were at one time performed in the field are now performed in the controlled atmosphere of the fabrication workshop. The modules contain all of the heat exchange tubing, headers, header support steel/piping, interconnecting piping links and manifolds, drains, vents, risers and distributers. Intermediate shop - installed manifolds are incorporated to reduce the number of interconnecting piping links between the evaporators and the steam drums: The manifold fit -up is improved by incorporating adjustable upper header supports and by shop- machining manifold nozzles in the same plane. Field welds are also reduced by utilising large module sizes to increase the amount of shop assembly of interconnecting piping and manifolds. These modules are shipped in either `C' or `O' Sections, depending on shipping clearance limitations for the particular fabrication location and project site. For the City Of Vernon Project, a total of five (5) heat exchanger modules in the `O' configuration will be delivered to site for each HRSG. The largely `empty' inlet duct, burner cavity, CO and SCR cavities (if provided) are shipped as loose structural steel and pre -fabricated casing sections for field installation. The columns are shipped with one side of the adjacent casing pre -installed, reducing field weld requirements by nearly %2. `O' sections are shipped with all four (4) columns and associated casing attached to the roof and floor beams, eliminating the need to install the opposite side columns/casing at site. Uprighting of the pressure part modules is achieved without the need for temporary uprighting frames. The main structural columns provide all of the support needed to prevent bending of the slender pressure part harps during uprighting. The Section is lifted and tilted from it's side to the vertical and placed on the foundation bolts. Once the bolts are correctly tightened, the section is free-standing and self supporting. Erection time for the heavy lift crane is saved with the use of pre -installed lifting lugs that are provided on the roof beams and near the module bottom. The main & tailing crane spreader beams can connect direct to these lugs, eliminating the need to set up and adjust temporary uprighting frames. Where the adjacent component is another pressure part module, a shop -installed casing joiner plate is attached to one of the Sections. Adjacent Sections are made gas -tight with a field seal weld of the casing joiner plate. The resultant internal casing joint is field -packed with insulation and covered by a field - installed liner joiner plate. Where the adjacent component is a cavity such as inlet duct, SCR, etc, the cavity casing panels are attached directly to the module structure on one side and the already -installed cavity portal frame on the other side with field seal welds. Panel to panel joins at comers are achieved with an external seal weld and internal stitch welds. The resultant internal casing joints are field -packed with insulation and covered by field -installed liner joiner plates. The casing for the cavities is shipped as large panels as practical for shipping and handling considerations. APPENDIX 6 Page 1 of 35 P J A6.1.2 Natural Circulation Design The natural circulation HRSG has proven it's durability and reliability in hundreds of industrial and utility applications. The fundamental principle of the difference in density of hot and cold water is utilised to ensure an adequate water supply to the evaporator tubes and prevention of DNB (Departure from Nucleate Boiling). Proof of this conservative design is that natural circulation HRSGs can operate with circulation ratios of up to 20:1. In combined cycle HRSGs that are supplementally fired, the first rows of the HP evaporator can be exposed to high gas temperatures that can result in insufficient tube cooling flow. ALSTOM Power designs each HRSG evaporator circuit for correct circulation in both the fired an unfired cases, ensuring adequate circulation in all cases. ALSTOM's design is further enhanced by incorporating only single rows of tubes per header, thereby eliminating the potential for reverse circulation in the downstream, cooler tubes of multiple - tube row header designs. X In the ALSTOM natural circulation HRSG, feed water flows through the economiser tubes and then mixes in the steam drum water space with water recirculated from the evaporator circuits. The denser, colder water feeds through the downcomers and is evenly distributed to the evaporator circuits. On being exposed to heat in the evaporation circuit, the water rapidly reaches the point where steam is formed thus reducing it's density and promoting rapid and vigorous circulation. The steam and water mixture leaving the evaporator circuits enters the steam drum behind a baffle which separates the water space from the incoming steam and water mixture, causing the mixture to flow through a series of cyclones. Centrifugal action causes a large proportion of the water to be separated from the steam and discharged into the drum water space. The wet steam is discharged from the cyclones through primary and secondary scrubbers, which remove the entrained water droplets before the steam leaves the drum and enters the superheater. A6.1.3 Heat Transfer Surface Design AP's HRSG heat transfer tubing is made by helically winding solid or serrated fin stock to the walls of bare tubing, and attached by a low penetration, high frequency resistance welding process. This attachment weld is designed to provide a metal joint, which improves heat transfer between the fin and the tube. The very low penetration of the attachment weld minimises any effects on the physical or chemical characteristics of the tube and/or fin. Alstom Power, Inc. recognises the needs for cycling services and has included the following design features: • Single row of tubes between headers • Finned tubes with no bends • Flexible loops between upper headers and drums • Elimination of division walls inside headers • Small diameter headers reduce thermal stresses by 60% • Multiple header connections promote uniform metal temperatures in superheater • Enhanced drain arrangements prevents condensate flooding of SH section during GT purge All pressure parts are fully drainable and veritable. APPENDIX 6 Page 2 of 35 �, 7 1 A6.1.4 Heat Exchanger Surface Summary Preliminary Design Details Tube Rows Deep Tube Rows Wide Finned Length ft Tube O.D. in Tube MWT in Tube Material Fin Density fins/i n Fin Height in Fin Thickness in Fin Type Fin Material Expected Surface sq fl Tube Rows Deep Tube Rows Wide Finned Length ft Tube O.D. in Tube MWT in Tube Material HPSH1 HPSH2 HPSH3 HP EVAP HP ECONI HP ECON2 LP SHTR 4 3 3 14 5 4 1 34 34 34 34 34 34 34 44.98 44.98 44.98 44.98 44.98 44.98 44.98 1.50 1.50 1.50 1.50 1.50 1.50 1.50 0.150 0.125 0.125 0.102 0.142 0.142 0.094 213-T22 213-T11 213-T11 SA-192 SA-192 SA-192 SA-192 6.10 0.00 4.06 6.60 6.60 6.60 0.00 0.512 0.000 0.512 0.630 0.630 0.630 0.000 0.04 0.00 0.04 0.04 0.04 0.04 0.00 Serrated Bare Tube Serrated Serrated Serrated Serrated Bare Tube 409 SS 409 SS 409 SS CS CS CS CS 23,335 1,892 12,298 107,825 38,509 30,807 631 Fin Density fins/i n Fin Height in Fin Thickness in Fin Type Fin Material Expected Surface sq fl LP EVAP LP ECON1 HP ECON3 LP ECON2 HP ECON4 LP ECON3 HP ECON5 10 1 6 2 4 2 4 34 34 34 34 34 34 34 44.98 44.98 44.98 44.98 44.98 44.98 44.98 1.50 1.50 1.50 1.50 1.50 1.50 1.50 0.094 0.094 0.142 0.094 0.142 0.094 0.142 SA-192 SA-192 SA-192 SA-192 SA-192 SA-192 SA-192 6.60 6.60 6.60 6.60 6.60 6.60 6.60 0.630 0.630 0.630 0.630 0.630 0.630 0.630 0.04 0.04 0.04 0.04 0.04 0.04 0.04 Serrated Serrated Serrated Serrated Serrated Serrated Serrated CS CS CS CS CS CS CS 77,018 t 7,702 46,211 15,404 30,807 15,404 30,807 HRSG Surface sq ft 438,649 APPENDIX 6 Page 3 of 35 (ly A6.1.5 Codes and Standards The pressure parts described in this proposal shall be designed in accordance with the rules of the applicable sections of the ASME Boiler and Pressure Vessel Code. In addition, the Equipment shall be designed and manufactured in accordance with other applicable national, state and local codes provided that, in the event of conflict between national and state or local codes, the ASME shall govern. For purposes of establishing a base contract price, the edition of the ASME Code, and other applicable national, state or local codes, in effect as of the original date of (1) this proposal has been utilised. Where actual design of the equipment to the requirements of the edition of the ASME Code or other codes mandated by date of contract award or thereafter results in a change in the cost of equipment and/or services provided by the Supplier, the contract price shall be adjusted accordingly. The ASME code also provides rules for the construction of certain piping and valves connected to the pressure parts furnished by the Supplier which are not normally a part of the boiler manufacturer's proposal. However, before the Certificate of Field Assembly Inspection can be signed by an authorised inspector certifying that the complete unit conforms with the Code, it will be necessary for the Purchaser or his Contractor to furnish to the Field Inspector a Manufacturer's Data Report* as required by Paragraph PG 112 of the ASME Power Boiler Code covering such piping, valves, connections, and other equipment which are not furnished by the Supplier but are included in the scope of the code requirements. Piping and piping components not included under the jurisdiction of the ASME Boiler and Pressure Vessel Code, but included under the jurisdiction of the ANSI Code for Pressure Piping will be furnished in accordance with the ANSI Code in effect on the original date (2) of this proposal. (1) ASME - Boiler and Pressure Vessel Code - Section I Tower Boilers', current edition together with all Code Cases in effect at the date of the contract, including all mandatory addenda. (2) ANSI - Code for Pressure Piping - B-31.1 - Edition and addenda, as specified in Section I, Paragraph PG-58.3 of ASME Code (1). Units: The US Customary Units System are used. APPENDIX 6 Page 4 of 35 N The HRSG design will be in accordance with the following codes and standards. Area Type Code Structure Design: UBC, AISC -Wind Load ASCE -Seismic Load UBC + Calif Requirements (as determined with CBO) Materials: ASTM, JIS, BS Fabrication: AWS D1.1 Stack ASME STS 1-1992 Pressure Parts Design: ASME I Materials: ASME 1, ASTM Pressure vessels Design: ASME VIII Materials: ASTM Piping Design: ASME B3 L 1 Materials: ASTM Welding: Press. Parts: ASME IX Structure: AWS Dl.l Safety/Access OSHA, Cal -OSHA, UBC Painting Alstom Standard Electrical NEMA, IEEE Instruments ISA, UL Flow meters ISO, ASME Safety Valves ANSI Valves ANSI B16.34, ASME B31.1 Burners NFPA 85, 8506 Aqueous Ammonia Handling ASHRAE Aqueous Ammonia Storage ASIiRAE, API, ASME APPENDIX 6 Page 5 of 35 16 A6.1.6 Steam Drum The HRSG evaporative circuits incorporate a large steam drum, which ensures steam purity and reduce the potential for water surges encountered during cold starts. Construction Downcomers Blowdown Safety Valves Internals Connections Preliminary Design Data The drum shall be of fusion welded construction, fabricated from carbon steel plate and equipped with two (2) 16 inch diameter manway openings, one at each end of the drums. Dedicated downcomers are used for proper circulation in the evaporative steam generating sections. Motorised continuous and motorised intermittant blowdown valves and associated pipework are provided to control boiler water solids concentrations and to help control drum level during unit upsets. The drum is fitted with two (2) safety valves each rated at 40% (maximum) of the dr un's design evaportion rate. The safety valves discharge to a silencer for noise attenuation. The steam drum will include steam separators of the AP design with corrugated plate dryers and dry box. Connections are provided on the steam drums for steam outlet, feed inlet, riser and downcomer, venting, safety valves, surface blowdown, pressure measurement, water columns, chemical feed and nitrogen blanketing. Steam drum HP LP ID, nun in 1676 66" 1524 60" Barell Length, in ft 4.6 15' 3.0 9'9' Approx thick, mm in 75 3" 12.7 0.5' Plate Material SA-516-70 SA-516-70 Drum Design Pressure bar si 102 (1479) 13.0 (189) Safety Valves barg (psig) Drum Low Set Drum High Set SH Outlet Set 102.0 (1,479) 105.1(1,524) 97.6 1,415 13.0 (189) 13.4 (194) 11.2 162 Design T, C, de 311C (593F) 194C (380F) Type of head Semi elliptical Semi elliptical # Separators 14 6 # Dryer rows 2 1 Max working Vol. m3 7.4 4.3 Est. weight, dry, t lbs 25 55,000 4(9,000) Est. weight, hydro, t lbs 36 80,000 10.3(23 000 Min Retention time, LA - LLA 3 mins unfired 8 mins * Unitised separators may not be required on the LP drum APPENDIX 6 Page 6 of 35 �� A6.1.7 Desuperheater A single, spray -type desuperheater is provided to control HP steam temperature. The desuperheater is located between HRSG's HP Superheater #1 & #2. Spray water is extracted from the hot economiser outlet water from before the HP drum level control valve. The desuperheater system includes the necessary control valve, piping and isolation valves as illustrated in the MID and below. Spray Water Source Power Operated. Block Valve Note: See Rroposai far definition of A8B0E Inlet Strut -Off ti/eive scope of-pply --1 Control Valve Outlet Shut-0ff Valve a ........... Spray Water steam Inlet Liner Plate Typical Desuperheataer Arrangement A6.1.8 Ductwork IStearlt Outlet The ductwork is as shown on the Preliminary Arrangement Drawing and includes: • the HRSG inlet duct from the outlet flange of the gas turbine expansion joint • the interconnecting casing panels containing the heat exchanger surfacing. • the HRSG outlet transition duct to stack. The inlet ductwork and interconnecting casing panels will be fabricated as shop assembled panels consisting of 6 mm (1/4") carbon steel outer casing, insulation and internal liner. The internal liner is of carbon or stainless steel. See the Casing, Insulation and Liner Summary in this proposal section for specific information. The ductwork from the HRSG to the stack will be un-insulated 6 mm (1/4") carbon steel casing provided with expanded metal stand-offs for personnel protection. The ductwork will be properly stiffened, reinforced and complete with necessary doors and expansion joints. APPENDIX 6 Page 7 of 35 A6.1.9 Casing, Insulation And Liners The HRSG incorporates "cold casing" construction. The internal insulation is selected to ensure the external casing has a maximum touch temperature of 60 C, thereby eliminating the need for expansion provisions of the casing. A freely expanding internal liner is utilised between the gas path and the insulation. When shipped as loose panels, Alstom Power's casing is shipped as an assembly that includes casing, insulation and liners. Where possible, the panels are shipped attached to the adjoining columns, decreasing the number of assemblies to be handled and the amount of field casing welding. Insulation materials will be first grade insulating materials as required for low casing temperature, safe efficient operation and minimum maintenance. The floor of the HRSG is sloped and provided with drains and ceramic insulation suitable for water washing. Shoulder studs of 12.5 mm minimum diameter will be welded to the inside of the outer casing. Insulating blanket is impaled on the shoulder studs and insulation pins. An oversize washer is placed over the insulation and the liners are stopped from compressing the insulation by the washer resting on the shoulder of the stud. The liner plate is installed with studs protruding through oversize holes in the liner. On the gas side, the liner is secured with an oversize washer welded to the stud. This construction permits the liner plate to expand with respect to the outer casing. Field packing of insulation and linerplates will only be required at the columns and beams. Studs will be spaced every 300mm in the inlet duct. Studs will be spaced every 300 — 450 min in the HRSG module casing panels. Inlet Dint Casing/Liner Assembly Urge . Att mfiment AS"Mbly Wood Nut to Water} .eWeAd (Nut -to 6tucQ FWd installed caner 0ovw PWO S- - APPENDIX 6 Page 8 of 35 Module Ceasing/Liner Assembly A..�e.. �r�suracis�n column APPENDIX 6 1, Page 9 of 35 A6.1.10Casing, Insulation & Liner Summary Inner Liner* Insulation* Outer Cassin Material Thickness Cer/Min Thickness in. mm Total Thickness in. mm Material Thickness in. (mm) Inlet Duct Section 1 409SS 12 Ga 6" (150) 6" (150) CS '/, (6) Inlet Duct Section 2 409SS 16 Ga 6" (150) 6" (150) CS "/, (6) BRSG Section 1 409SS 16 Ga 6" 150 6" 150 CS '/, 6 Duct Burner 304SS 16 Ga 10" 250 10" 250 CS '/, 6 BRSG Section 2 304/ 409SS 16 Ga 10" 250 10" 250 CS '/, 6 CO Catalyst 409SS 16 Ga 8" 200 8" 200 CS '/, 6 HRSG Section 3 409SS 16 Ga 8" 200 8" 200 CS '/, b SCR CS 16 Ga 3" 75 3" 75 CS '/, 6 BRSG Section 4 CS 16 Ga 3" 75 3" 75 CS '/, 6 BRSG Section 5 CS 16 Ga 3" 75 3" 75 CS '/, 6 Exhaust Duct N/A N/A N/A N/A CS '/, 6 Stack N/A N/A N/A N/A N/A N/A *Notes: Floor liner is 12 ga stainless steel Floor insulation is ceramic fibre Floors are sloped for drainage and provided with threaded drain cap A6.1.11 Structural Steel The proposed equipment shall include the following structural steel: • Platform supporting steel • Miscellaneous framing and equipment support steel integral with the unit • Base plates The structural steel shall be designed with reference to site and terrain conditions as well as equipment/plant loading m accordance with applicable building codes and in accordance with AISC provisions. All connections steel to steel shall be designed for and employ high strength bolts. Connections for platform steel to module steel is bolted unless impractical by location/design. APPENDIX 6 Page 10 of 35 A6.1.12Exhaust Stack A 110 ft carbon -steel stack for each HRSG will be supplied. Access to the stack is provided by a walkway from the upper HRSG platform arel. Caged ladders provide access to a 360 degree access platform at the EPA sampling location. A maintenance platform is also supplied at the stack damper location. Expanded -metal stand-offs are provided along platforms and ladders for personnel protection. An internal sloped floor and drainage connection with isolating valve are provide at the stack base. Access to the inside of the stack and the transition piece/rear of last pressure part module is via an access door located at the base of the stack. A stack damper system is supplied to help reduce heat loss from the HRSG during short-term shutdowns. Each HRSG stack damper system comprises of the following: (1) Carbon steel stack damper with mounting trim (1) electric actuator with limit switches for safety interlock (1) access gallery for serviceable components (1) safety provisions for stack temperature and moving linkages The damper is either louver or butterfly -style, operated by a direct -acting electric actuator mounted to one of the damper axles. The other damper axle (s) is connected to the driven axle by mechanical linkages. The damper linkage is fitted with a counter weight to a) reduce the driven load of the actuator, and b) to allow the damper to open on it's own with the internal gas pressure of the HRSG should an actuator malfunction occur. Manual disconnection of the linkage is required to allow the damper to open. The damper is typically located immediately following the stack breaching transition piece, depending upon contract -specific silencing and sampling requirements. An access gallery is provided for the serviceable components, complete with personal safety provisions for both stack temperature and the moving linkages/counter-weights. As the stack damper must be open to start the GT, limit switches are provided to identify `Stack Damper Open' as a GT start permissive. The stack damper components are shipped loose for installation by the Purchaser. A6.1.13Platforms And Stairways The proposed equipment shall include a system of platforms and stairways as required for the proper operation and maintenance of the steam generator components described in this proposal. Platforms shall have three (3) feet wide clear walk space, except where interference with equipment makes this impractical, fabricated from galvanised grating formed from 3/16 inch x 1-1/4 inch welded load bars on 1-3/16 inch centers, with cross bars on 4 inch spacing. Grating shall be complete with 1/4 inch thick toe plates to extend a minimum of 4 inch above the top of the grating. Stairways shall be 30 inch wide. Stair treads shall be formed from 1/8 inch x 1 inch steel bars grouped approximately 9-3/4 inch deep, complete with chequered plate, non-skid nosing. APPENDIX 6 Page 11 of 35 A single safety -egress ladder with safety cages will be provided as shown in the preliminary arrangement drawing. A6.1.14Expansion Joints The HRSG inlet expansion joint is a high -quality fabric type joint, designed to withstand gas turbine transient conditions, including frequent start-up and shut -down. The inlet expansion joint is made of a ptfe-covered glass -fibre sandwich construction with a separate backing bolster for additional temperature protection. The expansion joint is attached to the HRSG inlet side (fixed) by means of bolts and backing plates. It is attached to the GT outlet (moving) by means of bolts and backing plates, however the backing plates are to be supplied by Purchaser to match the Purchaser's GT outlet flange. The joint is designed for 25,000 operating hours life. The joint is shipped loose for field installation. The HRSG outlet expansion fabric expansion joint is attached between the last module of the HRSG (fixed) and the HRSG outlet duct (moving). It is shipped loose complete with all backing plates for field installation. The joint is designed for 50,000 operating hours life Piping expansion joints for casing penetration sealing are high quality stainless steel design, selected for the 30 year expected operational life of the HRSG. Where the penetrations are located on modular pressure part sections, the joints will be shop -installed, with some final welding/adjustments required at site for final fit -up. A6.1.15Interconnecting Piping, Valves & Trim All interconnecting piping DN 2.5"and greater will be shipped in fabricated spools. The spools will be end -dapped for protection with one end prepped for welding and one end "green" for field fit -up. All interconnecting piping DN 2" and smaller will be shipped loose for field installation in accordance with isometric installation drawings. All valves, hangers and trim equipment will be shipped loose for assembly and field installation. A6.1.16CIeaning, Painting and Coating CLEANING All portions of the boiler and supporting steel are cleaned in a manner necessary to provide a satisfactory surface for its intended service function. Surfaces that are to receive shop coats of paint or preservative are properly conditioned prior to application. Unless otherwise specified herein, all field painting shall be done by the Purchaser, both materials and labour, including touch-up of any shop paint or galvanised surface as required. PROTECTION Machined surfaces that will be exposed to the atmosphere in transit and subsequent storage shall be protected. Nozzles and open tube ends are capped and sealed. All bolts and nuts on the steelwork will be galvanised. All access galleries will be galvanised. PAINTING All casing, ductwork and structural steel are coated with shop primer. The whole of the equipment offered will receive a protective undercoat coat of paint and/or suitable protection (with the exception of stainless steel) before dispatch to site. Proprietary items such as pumps, valves and motors will receive the manufacturers standard prime coat and finish coat. Following erection, final and touch-up painting would be required on -site. APPENDIX 6 ! Page 12 of 35 A6.1.17Designation And Name Plates Designation Equipment designation is as per the KKS plant identification system. APPENDIX 6 t Page 13 of 35 A6.1.18Valve & Actuator Selections Valve and actuator selection criteria will be in accordance with the following Tables 6.1 to 6.5 TABLE 6.1— STEAM AND WATER VALVE SELECTION 2" AND BELOW VALVE TYPE Rating TYPE MAT'L ENDS COMMENTS Manual isolation valves 'All IGATE 3 NOTE 1 SkW Includes vents - Manual control valves JAll I GL SkW Safety valves 1900# 600# or under or over FL BW Non return valves JAII i i SkW Swing -check Actuated control valves 600# or under 900# or over GL GL FL LBW Plug / cage type Instrument isolation valves All GL SCR (NPT) outlet socket weld inlet 1 I Intermittent blowdown valves 600# or under 900# or over Y-GLOBE Y-GLOBE FL BW Water gauge glass isolators 600# or under 800# or over GATE Y-GL SW SW Water wall drains, Ist isolator 600# or under 800# or over GATE Y-GL BW BW NOTES: All steam and water valves to be steel, refer to material selection in the valve list APPENDIX 6 n Page 14 of 35 (J TABLE 6.2 — STEAM AND WATER VALVE SELECTION 2_r%" AND AROW.. VALVE TYPE !RATING , 'TYPE p ;MAT'L ENDS 1COMMENTS Manual isolation valves 1300# or under BFLY NOTE 1 W/Preferred <150 deg.c 600# or under GATE �FL/BW (Fl. For pump isolation) 3 900# or over GATE � ! BW Manual control valves 300# or under BFLY NOTE 1 For limited turndown 1600# or under GL !W/ FL �900# or over GL 1BW Safety valves 600# or under ; FL 900# or over BW Non return valves 300# or under DUO CHK INOTE 1 ,Preferred 600# or under SWING IW/ FL 'Pump discharge, high f ! temps 900# or over SWING BW � s I Actuated control valves 1600# or under GL FL 1BW Plug / cage type }900# or over GL I ; Plug /cage type TABLE 6.3 — FUEL VALVES, OIL AND GAS TO AGA OR NFPA CODES VALVE TYPE SIZE TYPE MAT'L ENDS COMMENTS Manual isolation valves 2" or less BALL C SkW 2.5" or more GATE C FL Manual control valves 2" or less GL C SkW 2.5" or more GL C,W FL Non return valves 2" or less SWING-CHK C SkW 2.5" or more C,W FL Actuated control valves 2" or less GL FL 2.5" or more GL FL Block & vent valves 20mm or less SOL SCR Direct solenoid 2" or less BALL C SkW 2.5" or more BALL FL For oil, gas codes NOTES: Valves for gas applications within Australia to comply with AG201 - manual shut off valves, AG214 - automatic shut off & vent valves, For oil applications refer to NFPA code for guidelines. APPENDIX 6 Page 15 of 35 TABLE 6.4 — SERVICES, WATER, AIR, ETC. VALVE TYPE SIZE TYPE MATT, I ENDS 'COMMENTS Manual isolation valves 2" or less Ball B, W SCR 2.5" or more Bfly W i 3 WAFER I Manual control valves 2" or less GI 1GI B, W SCR 2.5" or more B, W ,FL 2.5" or more �Bfly W !WAFER Cooling water >3" Non return valves 2" or less Swing -check B, W SCR 2.5" or more Duo -check W WAFER Actuated control valves 2" or less GI FL 2.5" or more GI IFL TABLE 6.5— ACTUATOR SELECTION DUTY VALVE TYPE CONTROL SIGNAL MOTIVE FORCE On/off Ball, Vfly Solenoid Pneumatic piston/rotary actuator On/off or inch Gate, gl Syst. Voltage Electric drive actuator On/off < 1" - Solenoid Direct solenoid powered Modulating Rising stem 4-20ma Pneumatic diaphragm Modulating Ball, b'fly, e' disk 4-20ma Pneumatic piston/rotary actuator Pressure regulation Various Pressure May be pilot operated or actuated by downstream signal Tank level regulation Bc Tank level Ball float Note that the trimmings for each actuator need to be specified Refer to control valve selection sheets for: voltages, limit switches failure position positioners i/p converters air pressures flows etc spring return position transmitters APPENDIX 6 Page 16 of 35 A6.2 SUPPLEMENTAL BURNER A6.2.1 Supplemental Burners A low NO,, in -duct burner is provided interstage of the superheaters to supplement the energy content of the GT exhaust. The burner provides 10:1 turndown without the need to isolate individual burner elements. Scanners on the auxiliary burner are used to prove individual burner -element flame when the burner is in operation. Automatic isolation valves are provided for each element and pilot. Each individual burner element may therefore be turned off without affecting the others if flame failure occurs on one element. This also allows isolation of the gas piping when the burners are out of service, which prevents moisture from the hot TEG from condensing in the out -of -service gas piping. Each burner element inserts consist of a fuel manifold pipe with one or more flame stabilisers attached to a 304 stainless steel front plate. The front plate is to be seal welded to the duct casing in the field. The front plate includes the ignitor, a NEMA 4 high-energy spark -ignitor power pack and the flame scanner. The gas supply connection is a 75mm (3") 150# RF flange that extends approximately 500 mrn (20") from front plate. A 12 gl . 309 stainless steel liner plate holds in place an insulation plug of 81bs/ft3 ceramic fibre blanket. Each stainless steel burner assembly comprises: (5) Horizontal Gas Burner Elements with Stainless Steel (HH) Investment Cast Stabilisers (5) High -Energy Spark -Ignited Gas Pilots (5) NEMA 4 Spark -Ignitor power pack enclosures wired to the pilot (5) Self -Checking Scanners with adjustable swivel mount & isolation window to allow removal during operation (1) Main Gas Header and inter connecting piping (carbon steel) (1) Pilot Gas Header and interconnecting piping (carbon steel) (1) Scanner Cooling Air Header and interconnecting piping (carbon steel) (5) Automatic Element Isolation Valves (5) Automatic Pilot Isolation Valves (5) Seal & Blast Gates for pilot removal during turbine operation. A6.2.2 Natural Gas Valve Train The auxiliary burner is fuelled by natural gas. A complete valve train is provided in accordance with NFPA 85 rules. High-energy gas -electric ignitors are provided for igniting the burner flame. The natural gas is flow rate is controlled by a pneumatically -actuated valve located on the main fuel gas skid. The natural gas valve train is factory assembled and mounted on the burner piping frame which is shipped as a single unit. The following components are included on each gas train skid: (2) 6" Safety Shut -Off Valve with open/closed limit switches (1) 3" Vent Valve with closed position switch (1) 6" Fuel Flow Control Valve with Pneumatic Positioner and Low Fire Start Position Switch- (4-20 mA control signal is by Purchaser) (1) 6" Manual Shut Off Valve (2) 4.5" Diameter Pressure Gauge (Metric/English), for main gas supply pressure and burner header supply pressure indication. (2) Ball valves for instrument isolation (1) Fuel flow meter to EPA 40 CFR Part 75 Appendix D APPENDIX 6 Page 17 of 35 Pressure & Temperature Switches (Safety Interlocks — Alarm/Trip) (1) Low Gas Pressure Switch (1) High Gas Pressure Switch (1) Low Scanner Cooling Air Pressure Switch (1) High Furnace Temperature Switch A6.2.3 Pilot Ignition Valve Train One (1) 3/4" Natural Gas Pilot Piping Train is provided. The pilot train will require 700 BTU/hr per pilot of natural gas off the main gas train. The pilot train assembly is factory assembled and mounted on the burner -piping frame. The following components are included: (1) 3/4" Pressure Regulating Valve (1) 3/." Inlet Wye Strainer (2) 3/4" Pneumatically -Actuated Safety Shut -Off Valves with proof of closure (1) Y? Motor -Operated Vent Valve with proof of closure (1) 3/4" Manual Fuel Shut Off Valve (1) 4.5" Diameter Pressure Gauge with isolation valve A6.2.4 Instrument Air Supply Train The fuel piping control skid will be equipped with an instrument air supply and distribution train. The instrument air supply is required at 620 kPa [90 PSIG]. The following components will be included: (1) Low Instrument Air Pressure Switch (1) Self-contained, air -pressure reducing valve. (1) 4%z " Diameter instrument air pressure gauge. A6.2.5 Burner Management System A Flame Safeguard System (Burner Management System (BMS)) is included in our proposal. The burner management system is contained within a NEMA 4 purged electrical control cabinet, pre -wired with flame proving relay, programmable controller with microprocessor, inputs, outputs and status lights. A flame strength indicator and alarm horn is included. The local control panel that houses the burner management system is mounted on the fuel train skid and is pre -wired to the skid mounted instruments. The system comprises the following equipment (or equal): One (1) Allen-Bradley SLC 5/04 PLC with DH+/RS-232 port including: (1) Processor (1) Power Supply (3) UV Flame Module (1) Annunciator Panel for First Out Logic (1) Alarm Horn (1) Heater / Duplex Receptacle / Interior Light Switches and Pushbuttons The following minimum controls will be provided, either as individual controls or as a `touch screen' MMI (Man machine interface) control panel (1) "POWER—ON/OFF" Switch APPENDIX 6 � A Page 18 of 35 r1 11 (1) "BURNER/PURGE — STOP (maintained)- START (momentary) Selector Switch (1) "EMERGENCY STOP" Red Mushroom Pushbutton (1) "ALARM SILENCE/LAMP TEST" Pushbutton (1) "RESET" Pushbutton Indicator Lights (1) "POWER ON" (1) "PURGE READY/LIMITS SATISFIED" (1) "PURGE IN PROGRESS" (1) "PURGE COMPLETE" (1) "PILOT SSO VALVES ENERGIZED" (1) "MAIN GAS SSO VALVES ENERGIZED" (1) "FLAME DETECTED" (1) "FLAME FAILURE" (1) "SCANNER COOLING AIR PRESSURE NOT LOW" Provisions are made within this controller for interface with the customer's overall plant control system for safety interlocks. The auxiliary burner will shut down automatically in the event of Devices by ALSTOM Power: - High HRSG Steam Pressure - Low Drum Level - Stack Damper Switch - Combustor temperature high -high (Dual) - Low instrument air pressure (Dual) - Flame failure (Dual) - Input/output module failure - Low fuel pressure (Dual) - High fuel pressure Devices by Purchaser Low TEG Flow/Turbine Running Loss of Control/Interlock Power A6.2.6 Scanner Cooling Air Blowers The system is provided with two (2) skid -mounted scanner cooling air blowers sized for 100% duty each. Starting, stopping and automatic switchover is achieved through the Purchaser's DCS. Each blower is designed to accommodate the needs of the scanners, pilots and observation ports, approximately 280 Nm3/hr [170 SCFM] with a maximum static pressure of approximately 7.5 kPa [1.1 psig]. The proposed blowers will have the following features: - 460 Volt / 60 Hz / 3 Phase TEFC Motor (starter by Purchaser) - Inlet filter/silencer - Check valve - Coupling with guard - Distribution piping (shipped spooled) APPENDIX 6 ' Page 19 of 35 J A6.3 EMMISSIONS CONTROL EQUIPMENT A6.3.1 CO / VOC Catalyst Where required, a metal -substrate catalytic -oxidation modules (CO / VOC catalyst) is provided to reduce the concentrations of CO in the exhaust stream. CATALYST MODULES The CO Catalyst is manufactured with a special stainless steel foil substrate which is corrugated and coated with an alumina washcoat. The washcoat is impregnated with platinum group metals. The catalyzed foil is folded and encased in welded steel frames, approximately 2 ft. square, to form individual modules. Two of the modules are provided with four removable and replaceable test buttons which provide ability to monitor catalyst life. Two of the modules are provided with four test buttons — eight total test buttons provided. INTERNAL SUPPORT FRAME_& SEALS The internal support frame and internal tongue seals are fabricated from standard structural Stainless Steel members and shapes. Mechanical tongue and groove expansion seals around the perimeter of the frame and inside the liner sheet prevent bypass around the catalyst. The design accommodates movement of the frame due to thermal expansion while maintaining a continuous seal. Gas B CO CATALYST FRAME & ARRANGEMENT APPENDIX 6 r� Page 20 of 35 r APPENDIX 6 Page 21 of 35 A6.3.2 Selective Catalytic Reduction System A 19% aqueous ammonia (NH3OH), exhaust recirculation -based selective catalytic reduction system (SCR) is provided to reduce oxides of NOx from the exhaust stream into N2 and H2O. Catalytic reduction of NOx is achieved by passing a well- mixed stream of ammonia and NOx over a rare metal catalyst. The surface characteristics of the metal, in combination with the presence of heat, provide a favourable environment for the reaction of the NH3 with the NOx to form harmless N2 and H2O. Key variables that must be considered in the design of the system include the total composition of the gas stream, the temperature of the gas stream, the completeness of the mixing of the ammonia and gas, and the residence time of the mixture in the presence of the catalyst. The system provided comprises of a skid -mounted ammonia flow control and vapourisation unit, hot exhaust gas extraction system with skid -mounted gas blowers, vapourous ammonia injection grid, catalyst and supporting structure. Space is provided for 20% additional catalyst should predicted inlet NOx levels not be met by any upstream component. A hoist and monorail system is provided to facilitate maintenance and installation of the catalyst blocks. Adjustment of ammonia flow rate is performed with a pneumatically operated control valve by the Purchaser's DCS system. Automatic control of the system or emissions monitoring is not provided. SCR SYSTEM COMPONENTS The following equipment is included for each HRSG: (2) Hot Gas Fans w/ Motors (100% Capacity) (1) Hot Gas Piping & Dampers (1) Hot Gas Flow Element & Transmitter (Field Installed) (1) Ammonia Vaporiser w/Air Atomising Nozzle (1) Aqueous Ammonia Piping & Valves (1) Aqueous Ammonia Flow Orifice & Transmitter (1) Aqueous Ammonia Flow Control Valve (1) Aqueous Ammonia Shut -Off Valve (1) Aqueous Ammonia Strainer FIL- 18 (1) Atomising Air Piping & Valves (1) Atomising Air Flow Shut -Off Valve (1) Atomising Air Pressure Control Valve (1) Atomising Air Pressure Low Switch (1) Atomising Air Filter (1) Instrument Air Piping & Valves (1) Junction Box (1) Instrument Wiring to Local Junction Box APPENDIX 6 Page 22 of 35 �� SCR AQUEOUS AMMONIA STORAGE The ammonia storage, transfer pumping and flow measurement are provided as follows: (1) 8000 US gal aqueous ammonia storage tank (1) truck unloading pump, skid mounted (2) ammonia transfer pumps, skid mounted, instrumented SCR PRIMER, PAINTING, INSULATION The whole of the CS equipment supplied will receive a shop prime coat. Finish painting is performed in the field by the Purchaser. Final painting materials are NOT supplied. All required external insulation is NOT provided (consistent with our deviation in Section 3). The exhaust gas extraction piping, ammonia injection piping and ammonia vapourisation chamber require insulation and cladding. SCR CATALYST DELIVERY The main system components are delivered to suit the HRSG construction schedule. The catalyst itself is not delivered until within 2-3 weeks of actual required installation into the HRSG for operation, after initial trial run of GT and burners is completed. 0 .APPENDIX 6 Page 23 of 35 A6.4 ELECTRICAL EQUIPMENT A6.4.1 Design Philosophy Our bid is based upon supplying electrical equipment in accordance with ALSTOM Power standards. Please refer to Appendix 3 for anticipated electrical loads. A6A.2 Drives The motor drives offered are the 2 SCR dilution air blowers and the 2 Scanner cooling air blowers. The Feedwater system and Dosing system contain separately detailed drive information. A6.4.3 Cables Design and supply of Power cables is excluded from ALSTOM Power Scope of work. We will furnish the list of electrical loads for design of the MCC by the Purchaser. Supply of cable support materials is also excluded in our proposal. However, design of cable tray routing within boiler battery limit is included in our proposed. A6.4.4 Lighting and Small Power Design and supply of local area lighting and small power outlets and distribution is excluded from ALSTOM Power Scope of work. APPENDIX 6 Page 24 of 35 �� A6.5 INSTRUMENTATION AND CONTROLS The instrumentation system will be comprised of specified and necessary equipment to provide a complete and well -integrated combustor / boiler control and monitoring system as per the P&I Diagram. The instruments will be designed to ensure safe, reliable and efficient operation of the plant in conjunction with the control system to be designed and supplied by others. Instrumentation will be of proven design and with high reliability. All devices will be able to demonstrate proper operation over their design ranges and will be designed for easy maintenance and calibration. All signals that serve as HRSG protection are provided as double signals, each of them is independent from another. A6.5.1 Selection of Devices All control valves, shut-off valves and damper -control devices will be of either pneumatic or electric type. The air pressure required to drive the pneumatic driving devices will be regulated as necessary. A6.5.2 Outdoor -Installed Control Devices Control devices installed outdoors and their parts will be suitable for the location. A6.5.3 Instrument Wire and Cable Shielded cables (in the Purchaser's scope) should be used for low voltage signals (mV). One end of the. cable shields should be grounded in the cubicles or system control cabinets. A6.5.4 Analogue signals Analogue signals from instruments will be 4-20 mA DC, 2-wire loop powered from the control system. A6.5.5 Drum Level Instrumentation Drum level instrumentation for the boiler drum consists of two (2) level gauges and three (3) level transmitters. We have considered that remote -level indication will be achieved in the control system of the Purchaser from the level transmitters signals. Safety functions corresponding to drum levels HH & LL will be obtained from a 2-out-of-3 voting scheme in the Purchaser's control system for the limit -value generation from the 3 transmitters. If required, `Hydrastep' style drum level indicators can be supplied as an option, with provisions for the instrument output signal to be sent either control room mounted light panels or the plant DCS. A6.5.6 Local Instruments Local instruments required for the operation of the plant will comply with the following requirements: Pressure Instruments Pressure sensing elements subject to corrosive fluids or viscous fluid will utilise diaphragm seal or seal pots. Where using in pulsating services, pulsation dampers will be used. Pressure elements will be furnished with overage protection to at least 1.25 times the maximum range of the instrument. Elements in vacuum service will be capable of withstanding full vacuum regardless of range. Process pressure and APPENDIX 6 Page 25 of 35 Is ` differential pressure gauge dials will be a minimum of 100 mm in diameter and will have white background and black lettering. Pressure gauges for steam service will be provided with siphons. The accuracy of pressure gauges will be within f 1% of calibrated span. Pressure gauges will be mounted at the top of the connection unless they are inaccessible or severe vibrating conditions exist. All instruments will be furnished with isolating valves. If an instrument is located remotely from it's tapping point, both an isolating valve and a root valve will be provided. Temperature Instruments All temperature elements will be supplied with thermowelis unless otherwise specified. Welding -in style thermowells will be supplied in the. same material as that of the process piping to which it is attached. Thermowell dimensions will be compatible with the thermoelement. Line connection will include lagging extension as required. Unless otherwise specified, thermocouples will be of ISA K (Chromel alumel) single element design. Resistance temperature detectors (RTD) will be platinum 100 ohm at 0°C, insulated from its sheath. All thermocouples and RTDs will be of spring -loaded type except for the transformer and motor windings and other special temperature measurement applications. Thermocouples will be of ungrounded type. A6.5.7 Flow Elements Recommended lengths of straight pipe will be designed in accordance with ISO 5167. Beta ratio ranges will be 0.20 to 0.75 for liquid measurement and 0.20 to 0.70 for compressible fluids. The orifice flanges will be of ANSI rating and welding neck type. Orifice plates will be designed and manufactured in accordance with ISO 5167. Flow nozzle venturies for steam flow measurement will be employed. A6.5.8 Transmitters Electronic transmitters will utilise digital sensor technology and will be of a two -wire type with 4-20 mA DC output signal All transmitters will have a calibrated accuracy of t 0.5% of span or better. Independent and external zero and span adjustments will be provided. Transmitters used for measuring differential pressure will be furnished with pre -assembled five -valve manifold mounting directly on the transmitter. All parts of the transmitter in contact with process fluid will be suitable for the application and pressure and temperature conditions encountered. A6.5.9 Switches All switches will be provided with one contact. Each pressure switch will be installed complete with isolating valve. The actuation point of switches will preferably be within the centre two-thirds of the instrument range. A6.5.10Control Drives Control drive design will consider a fail-safe feature. All control drives will have position indicator and position transmitter/limit switches depending on process application and control requirement. Positioner will be of the cam -characterized type using a 0.2 to 1.0 bar input signal and mounted on the drive enclosure. I/P positioners will use 4-20 mA DC signals. Electrical accessories used for control valves and control drives will be enclosed in housing. APPENDIX 6 Page 26 of 35� A6.5.1 I Installation of Instruments All instruments should be properly mounted for safe operation. The main instrument air piping should be seamless galvanized steel pipe. Instrument air tubing 12 mm (1/2") OD and below should be stainless steel except that the output lines from control valve, relays or positioners may be 6 mm (1/4") OD. A6.5.12Instrument Impulse Tubing All process sensing tubing for instruments should be stainless steel. We have excluded supply of this tubing. A6.5.13 Wiring & Junction boxes We have included the supply of cabling and the local junction boxes for 4-20 mA signals from the field instruments. APPENDIX 6 A Page 27 of 35 I� r A6.6 FEEDWATER SYSTEM A6.6.1 Design Philosophy A HRSG feedwater system is provided to supply feedwater to both HRSGs from a common atmospheric deaerator and HP & LP pumps. The returned condensate and makeup water is heated for deaeration utilising either hot water recirculated from the LP economisers, HP bled steam, or a combination of the two depending on the plant operating mode. To increase the plant efficiency, a feedwater cooler is provided to reduce the HRSG HP & LP feedwater to the minimum allowable inlet temperature that is safe for both acid and water dewpoint corrosion. For most clean natural gases, this is 60 Deg C. The DA is installed atop a freestanding structure that provides the required suction head for the feedpumps. The upper platform is accessed via a stairway supported from the main structure. The pumps, feedwater cooler and most control and isolation valves for the system are all installed for easy access and maintenance at the base of the structure. APPENDIX 6 Page 28 of 35 �� OF A6.6.2 Deaerator A single, atmospheric -type thermal deaerator that also serves as the storage tank for the HP & LP feedwater pumps is provided. The deaerator is the well -proven `Stork -type' spray deaerator. In this design, the returned condensate is introduced to the tank via a spring -loaded spray valve. The valve body has multiple radial holes drilled to provide a fine spray pattern, ensuring generous mist contact surface for the stripping of oxygen from the condensate. An internal spring provides automatic position control of the piston. As the incoming condensate flow changes, the resulting pressure drop change across the spray holes causes the spring to re -position, ensuring the correct amount of holes are exposed to the flow to preserve the spray pattern. The main DA heating is provided by hot recirculated water from HRSG #1 & #2 LP economisers. When the amount of hot water is insufficient to satisfy the heat demand of the DA, pegging steam is introduced via an internal distribution `rake' to supplement the heating load. APPENDIX 6 0� Page 29 of 35 G i The preliminary deaerator design is as follows: DESIGN DATA DESIGN PRESSURE barg 3.50 DESIGN CODE - ASME VIII DIV 1 SHELL DATA SHELL I.D. Mm 3,048 SHELL TAN TO TAN Mm 6.1 SHELL THICKNESS Mm 12 GENERAL DATA TOTAL TANK LENGTH Mm 7,648 VOLUME FULL M3 53 CAP TO NWL (NETT) M3 37 CAPACITY AT MCR * Mins 9.5 HWL ABOVE C.L. Mm 675 NWL ABOVE C.L. Mm 575 LLWL ABOVE BOTTOM Mm 200 DESIGN TEMPERATURE deg C 250 HYDRO PRESSURE barg 4.55 HEAD DATA HEAD TYPE - 2:1 SE HEAD THICKNESS mm 12 MATERIAL - SA515Gr70 HT C.L. ABOVE GROUND mm 13,850 SHELL & ENDS WEIGHT kg 7,816 TOTAL DRY WEIGHT kg 12,000 TOTAL OPERATING WT Kg 47,000 WEIGHT FULL COLD kg 65,000 Outlet D02 * Maximum Continuous Rating = maximum feedwater demand of system eg, Case 7CIT3 = (390,500 + 33,100) = 423,000 lbs/hr total The DA is provided with the following equipment: (1) Inlet Spray & Non Return Valves (1) Vacuum Breaker (1) Safety Valve & Silencer (1) Motorised Vent Valve and vent orifice (1) Overflow Pipe to Drain (1) Motorised Lowering / Drain Valve (1) Pegging Steam Control Valve, NRV & flow element (1) Hot Econ Water Control Valve, NRV & flow element (1) Demin Make up Control Valve, NRV & flow element (1) Main Level Control Valve (1) Pressure Tree (test tap, local gauge, transmitter) (1) Temperature transmitter (3) Level transmitters (1) Level gauge (4) Pump Leak -Off / Minimum flow connections (1) Dosing / sampling connections ppb < 7.0 APPENDIX 6 Page 30 of 35 A6.6.3 Feed Pumps The system is provided with 2x200% pumps for both HP and LP feedwater. In normal operation one (1) HP pump and one (1) LP pump is running, supplying feedwater to both HRSGs. The other HP & LP pump is on standby duty. This configuration has been found to reduce the total capital installed cost of both the mechanical and electrical equipment. The pumps provided are a high quality horizontal, multi -stage, foot mounted, segment -casing design held together by high tensile bolts. The design has been proven in hundreds of power and industrial applications. They are mechanically sealed, internally hydraulic balanced and are fitted with constant level oilers for the main bearings. The HP pump internals are chrome steel with the exception of the bearing housings that are cast steel. The LP pump internals are a combination of chrome & carbon steel, and the bearing housings are cast steel. Each pump is fitted with the following equipment: (1) Multistage pump casing (1) Mechanical shaft seal with flushing pipes (1) Pump -to -drive coupling with guard (1) Baseplate for pump and driver (1) Minimum flow valve (1) Non -return (or combined LOn valve (1) Suction strainer with dP switch (1) Suction pressure gauge (1) Discharge pressure gauge (2) Pump Bearing Thermocouple (1) HP Driver: 1065 kW, 6,600 V, 3570 rpm, type CACA (estimated) (1) LP Driver: 63.3,kW, 460 V, 3570 rpm, type TEFC (estimated) (1) Acoustic Enclosure for 80 dB(A) @ 3 feet as required A6.6.4 Feedwater Cooler The system is provided with a single, stainless steel parallel -plate type, counter -flow heat exchanger to reduce the temperature of the HRSG feedwater. The cooler is modular design to accommodate simple installation and maintenance. The cooler cools the feedwater utilising the cold return condensate, which it heats to approx 95 Deg C. The outlet temperature of the cooler (the HRSG feedwater) is controlled to 60 Deg C minimum utilising an automatic control valve in the cooler bypass line. When operating- conditions require, the valve opens to allow some of the incoming condensate to bypass the cooler, thereby reducing the amount of feedwater cooling. The cooler is provided with the following equipment: (4) Main isolations (1) Bypass control valve (4) Bypass isolations (1) Feedwater temperature Thermocouple (1) Bypass control valve (2) Outlet temperature Thermocouple APPENDIX 6 Page 31 of 35 ej t A6.6.5 Feedwater Interconnecting Piping It is assumed the system is installed mid -way between the HRSGs. The required interconnecting system piping & supports between the system components are included as follows: STREAM Piping Included Terminal Point HP Feedwater each HRSG ALL N/A LP Feedwater each HRSG ALL N/A LP Econ Recirc each HRSG ALL N/A Pegging Seam ALL N/A Derain Water None N/A Return Condensate From TP to DA Near last HRSG column of Unit 2 DA overflow/drain To grade Outlet of isolation valve at grade local to DA Sampling To root valve Outlet Of Root valve DA downcomer All NIA A6.6.6 Feedwater Sampling System A freestanding sample rack with integral sample cooler is provided for the analysis of the DA outlet water conditions. Minimum flow switches protect the analysers and a manual sample valve is provided. The rack is provided with the following equipment: (1) Sample rack with local wiring and junction box (1) Sample cooler with isolators and cooling flow indicator (1) Sample isolation valve (1) Sample pressure -reducing valve (1) Sample pressure relief valve (1) Manual sample valve (1) Sample pressure gauge (1) Sample shut-off solenoid valve (3) Sample flow indicator/isolator (1) Dissolved oxygen monitor, 4-20 mA output, LCD display (1) pH electrode & transmitter, 4-20 mA output, LCD display (1) Conductivity Cell and transmitter, 4-20 mA output, LCD display The rack and sampling equipment are suitable for outdoor installation. Weather protection is not provided and assumed to be provided by the Purchaser if required. APPENDIX 6 Page 32 of 35 Q 1" i A6.6.7 Feedwater Dosing System An oxygen -scavenger dosing system suitable for dissolved oxygen control of the feedwater is provided. It is assumed the Purchaser will be utilising `tidy tanks' for supply of chemical and therefore does not require storage facility. The system consists of the following equipment: (1) Oxygen scavenger dosing pump with outlet connections (1) Spare oxygen scavenger dosing pump (1) Stainless Steel dosing pump drip tray The location of pump is the Purchaser's responsibility. Interconnection of the pump with the dosing point is not included. Weather protection and drain bunding are not provided by ALSTOM. APPENDIX 6 Page 33 of 35 A6.7 STEAM & WATER SAMPLING & DOSING A6.7.1 Boiler Sampling System Each HRSG is provided a prefabricated and tested sample wet rack with integral sample coolers for the analysis of the HRSG boiler water and steam conditions. The analysers are protected by minimum flow switches and a manual sample valves are provided. The following analysers are provided: HP LP Sat & Superheated Steam Cation Conductivity YES YES Drum Water Silica YES YES Drum Water pH YES YES Drum Water Direct Conductivity YES YES Note: • The saturated & superheated steam utilise a common cooler and cation conductivity analyser • The HP & LP boiler water utilise a common silica analyser • The HP & LP boiler water utilise dedicated pH & direct conductivity analysers. Each rack is provided with the following equipment: (1) Sample rack with local wiring and junction box (4) Sample cooler with isolators and cooling flow indicator (6) Sample isolation valve (4) Sample pressure -reducing valve (4) Sample pressure relief valve (4) Manual sample valve (4) Sample pressure gauge (4) Sample shut-off solenoid valve (4) Sample flow indicator/isolator (6) Interconnecting tubing for local mounting of wet rack The following analysers are provided on each rack (2) pH electrode & transmitter, 4-20 mA output, LCD display (2) Conductivity Cell and transmitter, 4-20 mA output, LCD display (2) Ion Exchange Column, Conductivity Cell and Transmitter, 4-20 mA output, LCD display (1) Mulit-stream boiler water Silica Monitor, 4-20 mA output per stream, LCD display The rack and sampling equipment are suitable for outdoor installation. Weather protection is not provided and assumed to be provided by the Purchaser if required. APPENDIX 6 Page 34 of 35 at A6.7.2 Boiler Dosing System A boiler water dosing system suitable for phosphate control of the boiler waters is provided. It is assumed the Purchaser will be utilising `tidy tanks' for supply of chemical and therefore does not require storage facility. Each BRSG is provided with the following equipment (2) Phosphate dosing pump with outlet connections (1) Spare Phosphate dosing pump (2) Stainless Steel dosing pump drip tray The location of the pumps is the Purchaser's responsibility. Tubing for interconnection of the pump with the dosing point is not included. Weather protection and drain bunding are not provided by ALSTOM. APPENDIX 6 Page 35 of 35 APPENDIX ? I APPENDIX 7 DRAWINGS & EQUIPMENT LIST GA T1271a - 001 HRSG Elevation / Pressure Parts T1271a — 002 HRSG Plan View P& IDs : T1271 a — 063-001 HRSG P&ID APPENDIX 7 QJ APPENDIX 8 K-STANDARD K-3787-1 Appr, by T/TRM Repiaces K-3787-1 trig 4-92-03 Language 82 Date 97-10 Edition 5 Page 1(8) RENHETSKRAV PA ANGA REQUIREMENTS ON PURITY OF -7 FOR TURBINDRIFT STEAM FOR DRIVING TURBINES Detta fir en oregistrerad handling om den el sitter I This Is an unreglstrered document if not filed in samling med tilihorande forteckning over gallande accordance with a list of content. dokument. 1 ALLMANT En tillrackligt bra vatten och Angkvalite Ar nbdvandig for aft reducera riskerna far korrosion och belaggningar i panna och turbin. Detta uppnAs genom aft anvanda bra spad- och matarvattenbehandling. En noggrann overvak-ning av matarvattensystem och Angpanna Ar darfor av stor vikt ocksA for turbinens driftssakerhet och tiilgang-lighet. Kraven pA Angans kvalitet Ar oberoende av pannans tryck och temperatur. De angivna vardena mAste innehAllas for aft man ska kunna forvanta sig st3mingsfri kontinuerlig drift av turbinen. For aft undvika belaggningar Ar det sarskilt viktigt aft kisel- och alkalihaitema Ar tilirackligt IAga. Belaggningar innebar alltid en reducerad verkningsgrad. I sarskilt ogynnsamma fall kan de Aven innebara risk for skador. For aft sakerstalla en tiliracklig hog vatten- och fingkvalitet mAste overvakningen vara tillracklig. Kontinuerliga matningar av sura IedningsformAgan i Angan Ar eft minimumkray. 2 KRAV PA TURBINANGAN Angivna varden ayser maximalvarden vid kontnuedig drift. De angivna vardena ska vara lagre nAr sA Ar mojligt. Under uppstart och andra transienter kan maximalvArdena temporart 6verskridas. VArdena mAste dock ha en nedAt- gAende tendens. VArdena for kontinuerlig drift mAste er- hAllas senast 2 timmar efter uppstart vid warm start och 8 timmar vid kall start. Angkvalitetskraven utgor grunden far faststallande av riktvarden for matar- och pannvatten. RiktvArdena for pannvatten och matarvatten ges i riktvarden for pannvatten punkt 4 respektive riktvarden for matarvatten punkt 5. Tabeil 1. Angkrav Sur IedningsformAga vid 25 °C 5 0,2 µS/cm matt efter stark sur katjonbrytare Kiseldioxid, Si02 <_ 0,020 mg/kg Totalt jAm, Fe 5 0,020 mg/kg Totalt koppar, Cu 5 0,003 mg/kg Natnum, Na 5 0,010 mg/kg Vid eventueil kylning av Angan for temperaturregiering med s k insprutningskylare ska eft rent matarvatten utan kemikaliedosering om mojligt anvandas, sA att ovan angivna riktvArden for Anga innehAiles. 1 GENERAL Water and steam of sufficiently high quality are necessary for reducing the risk of corrosion and deposits in the boiler and turbine. This is achieved by using good makeup and feed water treatment. Careful supervision of the feed wa-ter system and steam boiler is therefore very important, also for ensuring the reliability and availability of the tur-bine. The steam quality requirements are independent of the boiler pressure and temperature. The specified values must be maintained if the expectations of continuous, throuble-free operation of the turbine are to be met. To avoid deposits, it is particularly important to ensure that the contents of silica and alkali are sufficiently low. Deposits always result in reduced efficiency. In particularly adverse cases, deposits may also involve the risk of damage. In order to safeguard a sufficiently high quality of the water and steam, adequate supervision must be provided. Continuous measurement of cation conductivity of the steam is a minimum requirements. 2 DEMANDS ON THE TURBINE STEAM The specified values are the maximum values for continuous operation. Whenever possible, the actual values should be lower than the specified values. The maximum values may temporarily be exceeded during start-up and other transients. However, the trend of the values must be downward. The values for continuous operation must be achived no later than 2 hours after hot start-up and 8 hours after cold start-up. The steam quality requirements serve as a basis for de- termining the guideline values for the feed water and boiler water. The guideline values for boiler water and feed water are given in Section 4, Guideline values for boiler water, and Section 5, Guideline values for feed water. Table 1. Steam quality requirements Cation conductivity at 25 °C measured after strong cation exchanger <_ 0.2 µS/cm Silica, SiO2 5 0.020 mg/kg Total iron, Fe 5 0.020 mg/kg Total copper, Cu 5 0.003 mg/kg Sodium, Na 5 0.010 mg/kg If spray attemperation is used for controlling the steam temperature, clean feed water without chemical additives should be used, if possible, so that the guideline values specified above for steam will be met. A low PIL1/V /. I K-3787-1 Page 2 pate 97-10 Edition 5 3 FORKLARING TILL ANGKRAVEN 3.1 Transport av f6roreningar RENHETSKRAV PA ANGA REQUIREMENTS ON PURITY OF FOR TURBINDRIFT STEAM FOR DRIVING TURBINES F6roreningar 1 fingan ger belaggningar och korrosion Angan kan f6rorenas genom mekanisk 6verbaring av pannvatten, anvandning av f6rorenat vatten for fingkylning eller genom f6roreningars 16siighet i fingan. For aft hfilla 6verf6rd saltmangd pit en acceptabel nivfi ar det viktigt an fingpannans ayskiljningsanordningar i fingvagarna ar tiilrackligt effektiva samt att 6verkokning, skumning och 6vermatning i Angpannan undviks. Risken f6r mekanisk 6verbaring 6kar med 6kande panntryck. 1-6sligheten i bnga ar inte bara beroende av panntrycket utan ocksfi av kemin. 3.2 Belaggningar Belaggningar i turbinen medf6r alitid en f6rsAmring av verkningsgrad och kan, i ogynnsamma fall t o m f6rorsaka skador. 3 EXPLANATION OF STEAM REQUIREMENTS 3.1 Transport of impurities Impurities in the steam cause deposits and corrosion. The steam can be contaminated by mechanical carry-over of boiler water, by the use of contaminated water for spray attemperation, or by the solubility of the impurities in the steam. In order to maintain an acceptable level of salt carry over, it is important to ensure that the droplet collectors in the steam paths of the boiler are sufficiently effective, and that boiling over, foaming and over -feeding of the boiler are avoided. The risk of mechanical carry-over increases with increasing boiler pressure. The solubility in steam is dependent not only the boiler pressure, but also on the water chemistry. 3.2 Deposits Deposits in the turbine always result in impaired efficiency and, in adverse cases, may even cause damage. Belaggningar i turbinen kan vara 16sliga eller ol6sliga i vatten Deposits in the turbine may be soluble or insoluble in water eller mattad finga. or saturated steam. Natriumhydroxid fir ett exempel pfi ett 16siigt salt. Nat- riumhydroxid ska normalt begransas till 1/10 av den totala salthalten i pannvattnet. H6ga halter av natrium-hydroxid 1 turbinbelaggningar kan orsaka korrosion Icke vattenlbsliga belaggningar fir t ex kiiseldioxid, koppar- oxkler och jamoxider. Kisekfioxid har relativt h6g Ibslighet i finga ocksfi vid ifiga tryck och fails ut i ifigtrycksturbinen om fingans kisekli- oxidhalt bverstiger 0,02 mg/kg. Koncentrationen av ki- seidioxid i matar- och pannvatten mfiste darf6r hfilias under kontroii. Aven tiiifalliga 6verskridande av den angivna koncentrationen 1 fingan kan Leda till igensattningar i turbi- nen. 3.3 Korrosion Korrosionsangrepp i turbinen kan ske om fingan inne- hAller korrosiva salter eller korrosiva Baser sfisom kol- dixod. F6r borttagning av restsyra efter mekanisk avgasning an- vands i mfinga fall hydrazin. Vid h6g temperatur s6nderdelas hydrazin till kvave och ammoniak. Ammoniak kan ge upphov till korrosionsskador pfi kondensortuber av kopparlegeringar, Sodium hydroxide is an example of a soluble salt Sodium hydroxide should normally be limited to 1 A 0 of the total salt content of the boiler water. High contents of sodium hydroxide in the deposits in the turbine may cause corrosion. Typical water insoluble deposits include silica, copper oxides and iron oxides. The solubility of silica in steam is relatively high even at low pressures, and silica will be deposited in the low-pressure turbine if its content in the steam is in excess of 0.02 mg/kg- The concentration of silica in the feed water and boiler water must therefore be kept under control. Even temporary excursions beyond in the specified concentration in the steam may lead to deposits in the turbine. 3.3 Corrosion Corrosion attack may occur in the turbine if the steam contains corrosive salts or corrosive gases such as carbon dioxide. Hydrazine is often used for residual oxygen removal after mechanical deaeration. At high temperatures, hydrazine decomposes into nitrogen and ammonia. Ammonia may give rise to corrosion damage to copper -alloy condenser tubes. /i k ABB STAL i K-3787-1 RENHETSKRAV PA ANGA FbR TURBINDRIFT REQUIREMENTS ON PURITY OF STEAM FOR DRIVING TURBINES Natriumsuifit for restsyreborttagning bor inte anvandas over 35 bar, p g a risken for s6nderdelning till aggresiva svaveiforeningar. Genom lamplig matarvattenbehandling undviks aft stora mangder bikarbonater kommer in 1 pannan. Dessa salter sonderdelas till bl a koldioxid, som foljer med Angan och gor den korrosiv. Vid stiilestAnd bor turbinen hdllas torr for aft undviks stilie- stondskorrosion av rotorer och skovlar. 4 RIKTVARDEN F813 PANNVATTEN For aft uppno Angkraven meste matar- och pannvatten behandlas. Totaltaysaltat vatten kan alitid anvandas. Under 62 bar panntryck ar det ocksa mojligt aft anvanda avhardat vatten (salthaftigt vatten) som spadvatten. 1 tabeil 2 anges pannvatten dktvarden for pannvatten som kommer frin safthaltiga respektive saltfattiga vatten. 4.1 Pannvatten fron salthaltig# matarvatten Riktvardena bor anpassas med hiiinsyn till drifterfarenhe- tema. Erfarenhet har visat aft det finns anlaggningar som fungerar til fredsstallande forst da de 1 tabelien angivna maximivarden vasentligen underskrids. VArdet av p-alkali- teten Ar endast orienterande. p-vardet forkiaras i forklaring till riktvArden punkt 6. Fosfat och eventuell natriumhydroxid doseras till pannan. Fosfatbehandlingen tar hand om resthArdheten och hojer pH. Natriumhydroxiden hojer enbart pH.Vid en eventuell dosering av natriumhydroxid miste natriumhydroxid6ver- skottet kontroileras mycket noga. 4.2 Pannvatten frAn saltfritt matarvatten Pannvatten frfin saltfritt matarvatten kan doseras med olika kemikalier. Alkaliseringen i pannan kan ske med fosfat eller I vissa specieila fall natriumhydroxid. AnvAnder man fosfat ska forhAllandet Na/ PO a- 5 2,6, s k kongruent fosfatbehand ling. Kongruent fosfatbehandiing leder till st6rre sakefhet mot overbAring av fri natriumhydroxid. I en del anlffgg-ningar anvdnds enbart flyktiga alkaliseringsmedel. Date 97-10 Page 3 Edition 5 Sodium sulphite should not be used for residual oxygen removal at pressures above 35 bar, since it may decompose into aggressive sulphur compounds. Large quantities of bicarbonates can be prevented from entering the boiler by appropriate feed water treatment. These salts decompose to form, among others, carbon dioxide which is entrained by the steam and makes it corrosive. During stoppages, the turbine should be kept dry in order to avoid shut -down corrosion of the rotors and blades. 4 GUIDELINE VALUES FOR BOILER WATER In order to meet the demands made on the steam, the feed water and boiler water must be treated. Demineralized water can always be used. At boiler pressures below 62 bar, softened water (salt -containing water) can also be used as make-up water. Table 2 gives guideline values for boiler water originating from salt -containing and salt -free water. 41 Boiler water from salt -containing feed water The guideline values should be adjusted on the basis of operating experience. Experience has shown that certain plants perform satisfactorily only when the actual values are substantially lower than the tabulated maximum values. The value of p-alkalinity is given only for guidance. The p-value is explained in Section 6, Explanation of guideline values. Phosphate and sodium hydroxide, if any, are dosed into the boiler. The phosphate treatment removes the residual hardness and raises the pH. The sodium hydroxide only raises the pH. if sodium hydroxide is dosed, a very careful check must be kept on the excess sodium hydroxide. 4.2 Boiler water from sa 4ree feed water Boiler water from saft-free feed water can be dosed with various chemicals. Phosphate or, in certain special cases, sodium hydroxide can be used for alkalinity correction in the boiler. If phosphate is used, the ratio Na/PO a_ must be <_ 2.6, which is known as congruent phosphate treatment. Congruent phosphate treatment leads to greater security against the carry-over of free sodium hydroxide. in some plants, only volatile alkalinity correction agents are used. A K-3787-1 Page 4 Date 97-10 Edition 5 ABB STAL RENHETSKRAV PA ANGA REQUIREMENTS ON PURITY OF FOR TURBINDRIFT STEAM FOR DRIVING TURBINES I vissa anlaggningar doseras enbart flyktiga alkaliserings- medel till matarvattnet. Tabell 2. Riktvarden for pannvatten In some plants, only volatile alkalinity correction agents are dosed into the feed water. Table 2. Guideline values for boiler water Safthaftigt Saltfritt Salt -containing water Saft-free water Tryck (bar) 1) 2) Pressure 5 22 > 22 <_ 44 > 44 5 62 < 136 > 136 Alla tryck All pressures VarmegenomgAngen Alla varme- lokalt genomgingstal Heat transfer coefficient < 230 All heat transfer < 250 > 250 (kW/m5 coefficients pH 10,5-12 10-11,8 10-11 9,1-9,8 9,1-9,5 Se matarvatten pH See feedwater pH Fosfat Phosphate 10-20 5-15 5-15 < 6 < 3 POa' (mg/kg) 3) P-alkalitet 1-10 1-6 1-3 P-alkalinity mvaVk Ledningsf6m-Aga Conductivity, K < 8000 < 5000 < 2500 cm) 4) Surledningsf8rm3ga co Cation conductivity, rc < 50 < 5 < 3 sur (µWcm) Kiseldioxid Silica diagram 1 diagram 1 diagram 1 SiO2 graph 1 graph 1 graph 1 m 5) Organiska Amnen Organic substances Anmarkning: 1) Fasta alkaliseringsmedel i pannan + flyktiga alkaliseringsmedel i matarvatten 2) Enbart flyktiga alkaliseringsmedel i matarvattnet 3) Alkalitetstalet i mg per liter NaOH = 40 * p - alkalitet 4) Ledningsf6rmAgan Ar matt efter stark sur katjonbrytare 5) Haften organiska iimnen ska hiillas s;& lag sour m6jligt Notes: 1) Solid alkalinity correction agents in the boile + voltatile alkalinity correction agents in the feed water 2) Only volatile alkalinity correction agents in the feed water 3) Alkalinity, mg per litre NaOH = 40 * p - alkalinity 4). The conductivity is measured after a strong cation exchanger 5) The content of organic substances should be maintained as low as possible. Il� ABB STAL K-3787-1 RENHETSKRAV PA ANGA F6R TURBINDRIFT Diagram 1. Riktvarde for kiseldioxid i pannvatten 200 PRESSURE ( bar abs [ 180 160 140 120 100 80 Go 40 20 0.1 5 RIKTVARDEN FOR MATARVATTEN REQUIREMENTS ON PURITY OF STEAM FOR DRIVING TURBINES Date 97-10 Page 5 Edition 5 Graph 1. Guideline values for silica in boiler water I ? !!H .1 ! f trtax_ permissible S102 content In the boiler watac 1 ! j t 1 10 3102 CONTENT [ tnQ Si02/1 j Matarvatten kan baseras pd avhardat elleraysaltat spad- vatten. I tabeli 3 ges kraven pA avhardat (salthaltigt) re- spektive saltfritt matarvatten. Flyktiga alkaliseringsmedel (t ex hydrazin, ammoniak, cyklohexylamin, morfolin) doseras till matarvattnet obe- roende om vattnet ar saithaftigt eiler salttritt. Far genomstrbmningspannor finns det tre mSjligheter, neutral vattenbehandling, ftyktiga aikaliseringsmedel och kombibehandling. Neutral vattenbehandling tillampas for kokarreaktorer och behandlas inte nArmare har. Vid anvandning av flyktiga alkaliseringsmedel doseras hydrazin och/eller ammoniak. Vid kombibehandiing doseras syre elier vateperoxid och ammoniak. 5 GUIDELINE VALUES FOR FEED WATER Feed water can be based on softened or demineralized make-up water. Table 3 gives the requirements for softened (salt -containing) and salt -free feed water. Volatile alkalinity correction agents (e.g. hydrazine, ammonia, cyciohexylamine, morpholine) are dosed into the feed water regardless of whether the water is salt-containng or salt -free. Three possibilities are available for one -through boilers, i.e. neutral water treatment, volatile alkalinity correction agents, and combined treatment. Neutral water treatment is employed for boiling water reactors (BWRs) and is not discussed further here. If volatile alkalinity correction agents are employed, hyd- razine and/or ammonia is dosed. In combined treatment, oxygen or hydrogen peroxide and ammonia are dosed. 6 K-3787-1 ABB STAL Page 6 Date 97-10 RENHETSKRAV PA ANGA REQUIREMENTS ON PURITY OF Edition 5 FOR TURBINDRIFT STEAM FOR DRIVING TURBINES Tabell 3. Riktvarden for matarvatten Table 3. Guideline values for feed water Salthaltiga Saltfritt Salt -containing water Salt -free water 1) 2) 1) Dompanna Genomstromnings- Dompanna genomstr6mningspanna panna Drum boiler Drum boiler Once through boiler once through boiler pH 8,8-9,3 Cu/Fe leg/alloys 8,8-9,3 Cu/Fe leg/alloys kombVcombined > 9,2 4 Fe leglalloys > 9,2 4 Fe le altos 8,0-8,5 Totalt, koppar, Cu Total copper, Cu < 0,003 < 0,003 (►ngtkg) Totalt, jam, Fe Total iron, Fe < 0,020 < 0,020 m Syre, OZ kombVcombined Oxygen 02 < 0,010 < 0,010 0,030-0,300 m Kiseldioxid, SiO2 Styrs av Silicia, SiO2 pannvatten riktvarden < 0,020 (mg(kg) Determined by the boiler water guideline values 3) Sur lednings- formAga, sur < 0,2 Cation conductivity, tc cM Ledningsfomkiga Jamfbr med pannvatten Conductivity, tc riktvarden (PS/Cm) Compare with boiler water auldeline values Anmarkning: 1) Flyktiga alkaliseringsmedei i matarvattnet 2) Vid kombibehandling tiilsatts syre eller vAte- peroxid och ammoniak 3) Ledningsf6nnAgan ar mAtt efter stark sur katjon- brytare 4) Med fosfat kontroll av pannvatten, ska matarvattnets pH vara lagre An pannvattnets pH Notes: 1) Volatile alkalinity correction agents in the feed water 2) In combined treatment, oxygen or hydrogen peroxide and ammonia are added 3) The conductivity is measured after a strong cationic exchanger 4) If phosphate is used for controlling the boiler water, the pH of the feed water must be lower than the pH of the boiler water 13 a QSda slit m gom gE=2 8 � f: let a 380 ABB STAL K-3787-1 RENHETSKRAV PA ANGA REQUIREMENTS ON PURITY OF Date 97-10 FOR TURBINDRIFT STEAM FOR DRIVING TURBINES Edition 5 6 F6RKLARING TILL RIKTVARDEN 6 EXPLANATION OF GUIDELINE VALUES Nedan foljer forklaringar till riktvardena for pann- och matarvattnet. 6.1 Konduktivitet Konduktiviteten ar den viktigaste parameter for overvakning av renhet i Anga-, pann- och matarvatten. 6.2 Kiseldioxid Den tillatna halten av kiseldioxid och andra fororeningar i matarvatten for genomstromningspanna och i pannvattnet for dompanna bestams av angkraven 6.3 Jam och kopgar Jarn och koppar i matarvatten och anga fir en indikator pa hur vattenbehandlingen fungerar. Hattema ska hallas laga eftersom de kan ge belaggningar t pannan och turbinen. 6.4 Natrium Natriumhalten kommer fran doseringsmedet, kylvatten- lackage, fororenat returkondensat och problem vid regene- rering av jonbrytare. Det ar viktigt att ha en bra overvakning av natrium. 6.5 P-alkalitet P-alkalitet anger vattnets syraforbrukning. Syratitering av provet gars med fenolftalin sour indikator. Alkalitetstalet t mg NaOH per liter 40' p-alkaliteten. 6.6 off pH-vardet ar en avgorande faktor for korrosion i vatten- och angsystemet. Fasta alkaliseringsmedel (natriumfosfat, natriumhydroxid) och flyktiga alkaliseringsmedel (t ex hydrazin och ammoniak) doseras for att hoja pH. 6.7 Fosfat Fosfater doseras for att hoja pH-vardet och nar safthaftigt matarvatten forekommer binder det resthardheten. Dar ar viktigt att inte overdosera p g a risken for overbarring av natriumsafter till turbinen. 6.8 Syre Syrehaften ska hallas enligt rekommendationema. I annat fall kan syret orsaka korrosionsproblem. Page 7 Explanations of the guideline values for boiler water and feed water are given below. 6.1 Conductivity Conductivity is the most important parameter for supervising the purity of steam, boiler water and feed water, 6.2 Silica The permissible content of silica and other impurities in the feed water for once -through boilers and in the boiler water of drum boilers is determined by the demands made on the steam. 6.3 Iron and copper Iron and copper in the feed water and the steam are indi- cators of how well the water treatment performs. The contents must be kept low, since these elements may cause deposits in the boiler and turbine. 6.4 Sodium The sodium content originates from additives, cooling water leakage, contaminted return condensate and problems in the regeneration of ion exchangers. It is important to keep a good check on the sodium. 6.5 P-alkalinity P-alkalinity indicates the oxygen consumption of the water. Oxygen titration of the sample is done using phenol phthalein as indicator. Alkalinity in mg NaOH per litre 40' p- alkalinity. 6.6 DH The pH value is a factor which is decisive to corrosion in the water and steam systems. Solid alkalinity correction agents (sodium phosphate, sodium hydroxide) and volatile alkalinity correction agents (such as hydrazine and ammonia) are dosed in order to increase the pH. 6.7 Phosphate Phosphates are dosed in order to raise the pH value and, if salt -containing feed water is employed, it binds the residual hardness. It is important to avoid over -dosing due to the risk of carry-over of sodium salts to the turbine. 6.8_yOx Men The oxygen content should be maintained at the recom- mended values. Oxygen may otherwise cause corrosion problems. 0 K-3787-1 ABB STAL Page 8 Date 97-10 Edition 5 6.9 Haften organiska amnen RENHETSKRAV PA ANGA REQUIREMENTS ON PURITY OF FbR TURBINDRIFT STEAM FOR DRIVING TURBINES Kaliumpermanganatforbrukning respektive TOC (Total Organic Carbon) fir matt pa organiska amnen i pann- vatten. Haften organiska amnen ska h'allas sa lag som m6jligt p g a risken for s6nderdelning till organiska syror 6,9 Content of organic substances The potassium permanganate consumption and TOC (Total Organic Carbon) are measures of the organic substances in the boiler water. The content of organic substances should be kept as low as possible to avoid the risk of their decomposition to organic acids. APPENDIX 9 CITY OF VERNOP - HRRSG ALSTOM 80055-000-010 Issue: 1 POWER Date: 25 Sdocumentt 2001 Painting & Surface Protection Page: 1 of 6 of Boiler Plant Components By: MB Review: CONTRACT No. 80055 : CITY OF VERNON HRSG Subject: Painting and Surface Protection of Boiler Plant Components Purpose: To provide specification for the selection of surface preparation and paint system for components. Index to this Specification 1.0 - Plant equipment and piping 2.0 - Boiler Pressure parts /A CITY OF VERNQN - HASG ALSTOM 80055-000-010 Issue: 1 POWER Date: 25 Sdocumentt 2001 Painting & Surface Protection Page: 2 of 6 of Boiler Plant Components By: MB Review: 1.0 PLANT EQUIPMENT AND PIPING Following is a table (Table 1.0 - Painting system selection) showing the specified paint finish for various plant items. The preparation and painting requirements are to be specified on each drawing. In all cases the vendors should consult the paint manufacturer's specifications for details of the correct surface preparation and coating application method. No paints containing zinc, lead, copper or tin are to applied to pressure parts or piping with a design temperature above 400 degC due to the possibility of of these elements combining with the steel at high temperature and altering its characteristics. For proprietary components which are to be purchased from vendors (eg., pumps, valves etc...), the vendors' export standard painting specification shall apply unless noted otherwise. Notes: 1. For colour coding, refer to sdocumentarate Plant colour specification 2. Galvanised steel, stainless steel, and aluminium surfaces need not be painted. 3. Threaded ends to be greased and taped prior to coating, and protected during transport. 4. Vendors and fabricators shall submit details of the paint manufacturer/s and grade/s of paint proposed to be applied for approval by Alstom Power prior to commencing work. �.1 CITY OF VERNQX - H$.SG ALSTOM 80055-000-010 Issue: 1 POWER Date: 25 Sdocumentt 2001 Painting & Surface Protection Page: 3 of 6 of Boiler Plant Components By: MB Review: TABLE 1.0 - PAINTING SYSTEM SELECTION Number Component System Remarks 001 Steam drums - external surfaces 1 Also refer to part 2.0 of this document 001A Steam drum saddles 2 003 Downcomers, risers & supplies 1 Also refer to part 2.0 of this document 003A Saturated steam piping 1 Also refer to part 2.0 of this document 003B HP primary SHTR O/L manifold 1 Also refer to part 2.0 of this document 003C HP secondary SHTR I/L manifold I Also refer to part 2.0 of this document 003D Economiser Links 1 Also refer to part 2.0 of this document 003E Superheater Links 1 Also refer to part 2.0 of this document 004 Harp support links/clevises 1 005 Valves and mountings 0 Proprietary finish 009 Integral piping Refer item 186 below 012 HRSG steelwork 2 012 A Inlet duct steelwork 2 013 HRSG casings 4 External only 017 Deaerator Steelwork 2 018 Deaerator platform and stairway 8 024 Economiser manifolds 1 Also refer to part 2.0 of this document 027 Desu erheater 1 Also refer to part 2.0 of this document 099 Inlet duct casings 4 External only 101 Chimney 3 106 Galleries 8 114 Electric equipment - Conduit & switches Electric Motors 0 0 Proprietary finish Proprietag finish 177 Superheater outlet manifolds 1 Also refer to part 2.0 of this document 181 Blowdown vessel & vent 3 185 Heat Exchanger 0 Pro rie finish 186 Shop spooled piping (insulated) Temp. < 400 degC 5 186A Shop spooled piping (insulated) Temp. 400 - 600 degC 6 186B Shop spooled piping (uninsulated) 0 — 120 degC 121 — 200 degC 200 — 400 degC 2 3 4 186C Site run piping (uninsulated) 0 — 120 degC 121 — 200 degC 200 — 400 degC 2 3 4 (Site applied) 189 Boiler feed pumps 0 Pro rie finish 190 Deaerator I 190A Deaerator saddles 2 IV CITY OF VERNON - HRSG ALSTO M 80055-000-010 Issue: 1 POWER Date: 25 Sdocumentt 2001 Painting & Surface Protection Page: 4 of 6 of Boiler Plant Components By: MB Review: DESCRIPTION OF PAINTING SYSTEMS System 0 Paint system:. Equipment manufacturer's standard — refer to Order specification. These will be selected by the equipment manufacturer based on his standard practice and recommendations for the specific installation. Colour: Final top coat colour per separate specification System 1 Paint system: Prime coat for pressure parts and piping. Preparation: Wire brush to remove mill scale, weld slag etc... 1 st coat: Red oxide primer containing no copper, tin, lead or zinc. 2nd coat: As per 1st coat Total DFT: 40 um Colour: Red oxide System 2 Paint system: Carbon steel, outdoor, atmospheric, temp. <120 °C Preparation: Blast clean to Sa 2 %2 (ISO 8501), SP 10 (SSPC) 1st coat: Epoxy zinc phosphate primer or Epoxy zinc dust primer, Min. 30 um/coat. 2nd coat: Epoxy micaceous iron paint, Min. 50 um, Final coat: Polyurethane micaceous iron paint, Min. 50 um Total DFT: 160 um DFT Colour: See separate Plant colour specification System 3 Paint system: Carbon steel, outdoor, atmospheric, temp. <200 °C Preparation: Blast clean to Sa 2 %2 (ISO 8501), SP 10 (SSPC) 1st coat: Ethyl silicate zinc dust primer, Min. 50 um 2nd coat: Nil Final coat: Silicon Acryl paint, Min. 20 um Total DFT: 90 um DFT Colour: See separate Plant colour specification System 4 Paint system: Carbon steel, outdoor, atmospheric, temp. <400 °C Preparation: Blast clean to Sa 2 %2 (ISO 8501), SP 10 (SSPC) 1st coat: Ethyl silicate zinc dust primer, Min. 50 um 4 CITY OF VERNON - URSG ALSTOM 80055-000-010 Issue: 1 POWER Date: 25 Sdocumentt 2001 Painting & Surface Protection Page: 5 of 6 of Boiler Plant Components By: MB Review: 2nd coat: Nil Final coat: Silicon Aluminium paint, Min. 20 um Total DFT: 90 um DFT Colour: See separate Plant colour specification System 5 System: Insulated piping, temp. < 400 °C Preparation: Blast clean to Sa 2 %2 (ISO 8501), SP 10 (SSPC) 1 st coat: Ethyl silicate zinc dust primer Final coat: Nil Total DFT: 50 um DFT System 6 System: Insulated piping, temp. < 600 °C Preparation: Blast clean to Sa 2 %2 (ISO 8501), SP 10 (SSPC) 1st coat: Alkyd -resin primer Final coat: Nil Total DFT: 30 um DFT System 8 System: Hot dip galvanised to Approved National Standards. CITY OF VERNOV - I -MSG ALSTO M 80055-000-010 Issue: 1 POWER Date: 25 Sdocumentt 2001 Painting & Surface Protection Page: 6 of 6 of Boiler Plant Components By: MB Review: 2.0 PROTECTION OF BOILER PRESSURE PARTS 2.1 Drums 2.1.1 All flanged branches to be securely blanked by bolted on covers after coating machined surfaces with suitable rust preventative preparation. 2.1.2 All tube seats to be painted with a rust preventative preparation and the holes to be securely closed with plastic caps securely taped to the tube. 2.1.3 Painting after completion as per 2.2.4 below. 2.2 Headers 2.2.1 Flanged branches to be securely blanked by bolted on covers. 2.2.2 All tube seats to be treated and holes closed as for 2.1.2 above. 2.2.3 Any butt weld preparations to be capped after treating with rust preventative preparation so as to protect the machined surfaces, and capped or sealed against the ingress of moisture or foreign matter. 2.2.4 After completion of manufacture, outer surface to be wire brushed and given on coat of approved primer (no copper, tin, lead or zinc) 2.2.5 All mark numbers to be clearly legible after painting. 2.3 Tubes and pipes 2.3.1 All ends prdocumentared for butt welding to be capped and sealed as per 2.2.3 above. 2.3.2 All plain ends to be capped as per 2.3 above. 2.3.3 All flanges to be protected as per 2.1.1 above. 2.3.4 After completion, outer surface to be given one coat of approved primer or bitumastic paint as per 2.2.4 above. 2.3.5 Mark numbers as per 2.2.5 above. 2.3.6 All tube end on tubes prdocumentared'for expanding to be blast cleaned at ends, and coated over 150 mm with cup grease, and then metal capped. Notes: • Internal surfaces of the boiler drums, headers, tubes and pressure vessels are not to be coated under any account. • Threaded ends to be securely taped prior to painting. rA SUPPORTING DOCUMENTS r CITY COUNCIL LEONIS C. MALBURG Mayor THOMAS A. YBARRA Mayor Pro-Tem WM. 'BILL" DAVIS Councilman H. "LARRY" GONZALES Councilman W. MICHAEL MCCORMICK Councilman BRUCE V. MALKENHORST City Administrator / City Clerk FAX (323) 826-1438 CITY HALL 4305 SANTA FE AVENUE, VERNON, CALIFORNIA 90058 TELEPHONE (323) 583-8811 December 3, 2001 Alstom Power Inc. Attn: Patricia F. Mire, Contracts Manager 10730 Telge Road Houston, TX 77095 Re: HRSG, Steam Turbine, and WRAP Contracts Dear Ms. Mire: EDUARDO OLIVO City Attorney FAX: (562) 927-8722 KEVIN WILSON Director of Community Services & Water FAX: (323) 826-1435 KENNETH J. DeDARIO Director of Municipal Utilities FAX: (323) 826-1425 STEVEN E. PARKER Fire Chief FAX: (323) 826-1407 BRUCE W. OLSON Police Chief FAX: (323)826-1481 The insurance requirement has been met. Transmitted herewith is a duplicate original copy of each one of the above referenced contracts approved by the Vernon City Council on November 7, 2001. If you have any questions regarding this matter, please call Mr. Kenneth DeDario at 323/583-8811 ext. 211. Very truly yours, CITY OF VERNON AJ. Or co Chief Deputy City Clerk GJO:ng CC: Kenneth DeDario Resolution No :. x7866, 7867 Agreement File Nos. 01-074, 01-075, 01-073 A W O co) = cn y o 0 pr ym mg0 c m T � o C O K R .y+ I— S!� N �o �t eW 3T= m� CD m M zz O Z n W Q 0 N to Is z m m 3nx �a wLj- w L L moo. cns s co Q D N — Pi _ x _ N W � - m tt3 cis 3e N v L7 CR W g o W 6W3 Q r un Pi y N 0 0 cr yYya 3 3 r Di I © gH aXm.0 oe ga y y y : m B .p� a w3.1;4 �Oy d o 5n 3 ;- e %�Dy mom wil I go. CD cc cp oco "d m �_ '+e'8 v' � .Po 6'S^pl� m W m M: l0CD IF i� m _" m. 'i CO) 'a m � CD" m B �' m W N � m c' Q g N W �p c. El D El g m h yRE Ell n m cl T m T 2 T am F Zdm ,gm agy add ❑� eF s 'O z a` S m'';o $m SF N m 6 x SF L® ?. 3. Zg°d m ❑ ❑ ❑ ❑ 15 g n� Z mS'mT n eaim lO UP El Q' y once PC* m gym. say �.p33pd 'a C Z�� ETCOnm Z= "39VM0Vd 3H1 01 9NIXIJIV 310131 Ad00 SIHl NIV13H ONV iind