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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.

In plain English

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

Agreed
$243.0M
Paid
$138.0M
57% of agreed
Remaining (calculated)
$104.9M
The money
Paid against the agreed amount
Payments per fiscal year
20212223242526
Largest year: $26.0M · dashed = fiscal year not closed yet

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.

Payment detail begins FY2018
The deal
Contract term
May 1, 2018December 31, 2029
Term running
Recorded purchasing authority
Purchasing authority, verbatim
ADMIN CODE 21.04(A)(6)-DIRECT PURCHASE BY GENERAL MANAGER OF PUC

See every contract awarded under Other special authorities →

Sources
This contract in the source
Raw rows (JSON, data.sfgov.org)