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09-10-2018 BPU RPT 06
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09-10-2018 BPU AGENDA
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VII A i I. H I IJ I R Y 1. 1� E <br />RIVERSIDE PUBLIC UTILITIES <br />Board Memorandum <br />PLJIBLIC U r I L I T I E S <br />BOARD OF PUBLIC UTILITIES <br />DATE: SEPTEMBER 10, 2018 <br />ITEM NO: 6 <br />SUBJECT: BID RPU -1804 PROFESSIONAL CONSULTANT SERVICES AGREEMENT WITH IHI <br />INC. OF CHEYENNE, WYOMING, FOR THE TURBINE BLADE REPLACEMENTS <br />OUTLINED IN GENERAL ELECTRIC SERVICE BULLETIN 310 AT THE RIVERSIDE <br />ENERGY RESOURCE CENTER - IN THE AMOUNT $281,255 <br />ISSUE: <br />Approve a Professional Consultant Services Agreement, Bid RPU -1804, with IHI Inc. for the turbine blade <br />replacements under General Electric Service Bulletin 310 at the Riverside Energy Resource Center in the <br />amount of $281,255. <br />RECOMMENDATIONS: <br />That the Board of Public Utilities: <br />1. Approve a Professional Consultant Services Agreement, RPU Bid -1804, with IHI Inc. for the turbine <br />blade replacements under General Electric Service Bulletin 310 at the Riverside Energy Resource <br />Center in the amount of $281,255; and <br />2. Authorize the City Manager, or his designee, to execute the Professional Consultant Services <br />Agreement with IHI Inc. <br />BACKGROUND: <br />The Riverside Energy Resource Center (RERC) consists of four General Electric (GE) LM6000 model gas <br />turbine engines that, in total, provide 30 percent of Riverside's summer daily electric power demands. The <br />City constructed the RERC facility in two phases: Units 1 and 2 were commissioned in 2006, and Units 3 <br />and 4in2011. <br />In February 2016, GE issued Service Bulletin 310. A service bulletin is a document issued by a <br />manufacturer to notify equipment owner/operators of an identified deficiency with specific equipment that <br />could have a significant material impact if not addressed in a timely manner. This maintenance advisory <br />identified a limitation with unit start-up cycles and recommends partial turbine blade replacements after <br />1,500 engine starts. <br />The LM6000 gas turbine has fourteen stages of high pressure compressor (HPC) turbine blades. Service <br />Bulletin 310 specifies replacement of the rotating blades on stages three, four, and five. If not replaced <br />before 1,500 engine starts, the affected rotating blades could dislodge, cause significant downstream <br />damage during engine operation, and result in catastrophic failure of the gas turbine. <br />Page 16 <br />
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