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December 28, 2025

Diablo Canyon Power Plant

California Energy Commission
California PUC Orders Additional 11.5 GW but No Gas
The California PUC ordered an additional 11.5 GW of procurement by mid-decade but backpedaled on a plan to include up to 1,500 MW of fossil fuel generation in the mix.
CPUC Proposes Adding 11.5 GW of New Resources
The CPUC proposed requiring electric providers to procure 11.5 GW of new resources between 2023 and 2026 to meet the state’s reliability needs.
CGNP Fleshes out Diablo Canyon FERC Complaint
Californians for Green Nuclear Power has updated its request that FERC overturn the planned closing of Diablo Canyon in response to criticism from NERC.
NERC Blasts Calif. Nuclear Group’s Complaint
NERC urged FERC to reject a request by Californians for Green Nuclear Power to overturn the planned closing of Diablo Canyon Power Plant.
OTC Plants to Remain Open, Calif. Water Board Rules
Four aging natural gas plants scheduled to retire in December will keep operating because of California’s anticipated capacity shortfall.
California PUC Votes to Keep Old Gas Plants Operating
The California PUC voted unanimously to recommend that some older gas-fired plants remain open for up to three years to prevent reliability problems.
PGE
Diablo Canyon Shutdown Bill Goes to Brown
A measure to replace generating capacity and limit economic disruption from the retirement of Diablo Canyon is headed to California Gov. Jerry Brown.
© RTO Insider
CPUC Retires Diablo Canyon, Replaces Calpine RMRs
The California Public Utilities Commission (CPUC) issued several decisions that will affect the state’s energy resource mix and markets.
© RTO Insider
Wildfires Color California PUC Utility Decisions
Utilities are dealing with several wildfire-related proceedings at the California Public Utilities Commission, which is exploring taking a larger role.
PGE
PGE Files Diablo Canyon Shutdown Request
Pacific Gas and Electric (NYSE:PCG) filed with California regulators last week to shut down Diablo Canyon, the state’s last remaining nuclear power plant.

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