REPORT TO COUNCIL
SUBJECT
Title
Agreement for Services with Precision IceBlast Corporation for Cleaning of Heat Recovery Steam Generators at the Donald Von Raesfeld Power Plant
Report
BACKGROUND
Silicon Valley Power's Generation Division operates the Donald Von Raesfeld Power Plant (DVR), the City's largest in-city generation facility, a 147 MW natural gas-fired combined-cycle plant which was placed in service in 2005. The plant has two horizontal gas flow ATS/Express Heat Recovery Steam Generators (HRSGs) that use waste heat to create steam for power production. Over time iron oxides, ammonia salts, mineral deposits, and dirt adhere to the heat transfer surfaces which reduces the effectiveness of the transfer of thermal energy to create steam, thereby reducing power output of the facility. The current fouling of the HRSG heat transfer surface requires the cleaning of finned tubing that comprise the low pressure economizer section and the low pressure evaporator section in each of the two HRSGs.
DISCUSSION
On January 11, 2018, SVP sent out a Request For Proposals for Heat Recovery Steam Generators (HRSG) cleaning. SVP received 2 proposals which ranged in price from $389,550 to $399,504 over a three year period. Precision Iceblast Corporation was determined to be lowest responsible and responsive proposer able to meet all requested activities. The proposals were reviewed for compliance with the terms and conditions of the Request for Proposal and any necessary correction regarding tube spreading were made. Staff recommends awarding the contract to Precision IceBlast.
Fouling of the heat transfer surfaces in the HRSG has reduced electrical energy output from the DVR Power Plant. Cleaning of the low pressure economizer and low pressure evaporator finned tubing is required to return the DVR Power Plant to maximum achievable operating efficiency and power output. Cleaning the heat transfer surface is expected to increase annual revenue by an estimated $15...
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