Geothermal energy and renewable certificates
CALPINE ENERGY SERVICES LP · PUC Public Utilities Commsn
The Public Utilities Commission buys geothermal electricity from an energy company, together with the certificates that record the power as renewable. San Francisco agreed $243.0M with CALPINE ENERGY SERVICES LP for contract 1000010115 (PUC Public Utilities Commsn); $138.0M has been paid on it so far. Source: SF Controller supplier contracts (open data), data as of 13 July 2026.
The Public Utilities Commission buys geothermal electricity from an energy company, together with the certificates that record the power as renewable.
Register title: “PUC_CLP_GEYSER ENERGY+RECs”
Signed by Public Utilities Commsn
These bars total $141.9M; the figure above is $138.0M. The first comes from the City’s payment ledger, the second from the contract register’s own paid column. They match on ordinary contracts and drift apart on multi-phase projects, where the work runs through several purchase orders and the ledger counts all of them.
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