Get Full Government Meeting Transcripts, Videos, & Alerts Forever!
Get email alerts on the Capital Projects topic
No spam. Unsubscribe anytime.
SFPUC approves $1.6 million contingency increase, 331‑day extension for Moccasin powerhouse generator rehabilitation
Summary
The commission approved a $1.6 million increase to cost contingency and a 331‑calendar‑day extension for the Moccasin Powerhouse generator rehabilitation contract (DB‑121R2) after the contractor found misalignment issues during disassembly.
Project staff told the commission that General Electric Renewable Energy, the contractor on contract DB‑121R2, discovered a misalignment in a refurbished unit during disassembly and alignment checks. Project manager Tim Parkin said contractors found a run‑out of about 0.007 inches ("7 thousandths") at the lower turbine guide bearing and a small bend in the top portion of the shaft, which required off‑site machining of the collar and additional shims.
Parkin said the parts are expected to return in July and the unit will be back in service in November 2025. He described the issue as wear on heavy rotating equipment and said the contractor attempted reassembly and alignment for several months before recommending off‑site machining.
The commission approved an increase of $1,600,000 to the cost contingency and an extension of 331 calendar days to the contract’s duration contingency to complete the repairs and testing. Commissioners asked technical questions about the cause and the contractor's approach; a presenter described the condition as wear and tear on aging equipment and said the first unit had already returned to service.
Outcome: The motion to approve the contingency increase and schedule extension passed unanimously.
