03-13-2023 BPU RPT 06 - Laserfiche WebLink

Home

W A T E R E N E R G Y L I F E RIVERSIDE PUBLIC UTILITIES P UB LIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: MARCH 13, 2023 SUBJECT: REQUEST FOR PROPOSAL NO. 2241 — AGREEMENT WITH GE PACKAGED POWER, LLC. OF HOUSTON, TEXAS TO PERFORM TURBINE BLADE MAINTENANCE ON RIVERSIDE ENERGY RESOURCE CENTER UNITS 1 AND 2 IN THE AMOUNT OF $280,563. ISSUE: Consider recommending City Council approval of an agreement from Request for Proposal No. 2241 with GE Packaged Power, LLC. of Houston, Texas for turbine blade maintenance on Riverside Energy Resource Center Units 1 and 2 for $280,563. RECOMMENDATIONS: That the Board of Public Utilities recommend that the City Council: 1. Approve the agreement, from Request for Proposal No. 2241, with GE Package Power, LLC. of Houston, Texas for turbine blade maintenance at Riverside Energy Resource Center Units 1 and 2 for $280,563; and 2. Authorize the City Manager, or designee, to execute the agreement with GE Packaged Power, LLC., including making minor and non -substantive changes. BACKGROUND: The Riverside Energy Resource Center (RERC) consists of four General Electric LM6000 model gas turbine engines that, in total, provide 30% of Riverside's summer daily electric power demands. Riverside constructed the RERC facility in two phases: Units 1 and 2 (Units 1&2) commissioned in 2006, and Units 3 and 4 (Units 3&4) in 2011. In February 2016, GE issued Service Bulletin 310. A service bulletin is a document issued by a manufacturer to notify equipment owner/operators of an identified deficiency with specific equipment that could have a significant material impact if not addressed in a timely manner. This maintenance advisory identified a limitation with unit start-up cycles and recommends partial turbine blade replacements after 1,500 engine starts. The LM6000 gas turbine has 14 stages of high-pressure compressor (HPC) turbine blades. Service Bulletin 310 specifies replacement of the rotating blades on stages three, four, and five. If not replaced before 1,500 engine starts, the affected rotating blades could dislodge, cause