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December 29, 2025

California Independent System Operator (CAISO)

FERC Approves CAISO’s Aliso Canyon Response Plan Ahead of Summer

FERC OK'd the CAISO plan to temporarily alter its market rules in response to natural gas pipeline restrictions stemming from the closure of the Aliso Canyon storage facility.

Companies Dispute FERC Ruling on Crisis Contracts
Iberdrola struck back at a FERC judge’s ruling on their energy crisis supply contract that could subject the company to more than $370 million in penalties.
Aliso Canyon Gas Restrictions Cloud CAISO Summer Outlook
New generation and a rebound in hydroelectric capacity means healthy operating reserve margins for California this summer.
Berkshire Denied Rehearing on EIM Market Power
FERC upheld a decision that prohibits two companies’ generating units from offering energy into the Western EIM at prices above default energy bids.
Solar is Generation of Choice in California
The prevailing opinion at the Infocast California Energy Summit was that solar is the generation of choice now in the state.
Integrated Resource Planning on the Horizon for Calif.
The California PUC's highest priority is reforming its long-term planning process to ensure the state will meet its emission  reduction goals.
CAISO EIM Boosts Market for Renewables in Q1
The expanded western EIM provided California a new outlet for surplus renewables, according to CAISO.
CAISO Board Approves Aliso Canyon Market Response
CAISO’s Board of Governors approved an ISO plan to temporarily alter market operations in response to the Aliso Canyon shutdown.
Stakeholders Wary of CAISO Contingency Modeling
CAISO stakeholders expressed misgivings and confusion about a new issue paper exploring contingency modeling.
FERC ALJ: Shell, Iberdrola Owe California $1.1B over Energy Crisis
A FERC judge ruled that Shell and Iberdrola  saddled California consumers with $1.1 billion in excess energy costs at the height of the Western Energy Crisis.

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