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March 17, 2026

CAISO/WEIM

The California Independent System Operator serves about 80% of California's electricity demand, including the service areas of the state's three investor-owned utilities. It also operates the Western Energy Imbalance Market, an interstate real-time market covering territory that accounts for 80% of the load in the Western Interconnection.
CPUC OKs 1.2 GW of Storage by 2021, 38,000 EV Chargers
The California PUC greenlit a major expansion of the state's EV charging program and approved contracts signed by investor-owned utilities to procure 1.2 GW of battery storage.
Theories Abound over California Blackouts Cause
Observers cited dependence on imports, underperformance of natural gas and wind, and market manipulation as possible causes of California’s recent blackouts.
CAISO Finalizes ESDER Phase 4 Proposal
CAISO presented its final proposal of its effort to make it easier for energy storage and distributed energy resources to participate in markets.
COVID-19 Will Cut Electricity Demand in Calif., CEC Says
The COVID-19 pandemic and accompanying recession will significantly reduce electricity demand in California through 2023.
CAISO Provides More Details on Blackouts
CAISO and the California PUC and Energy Commission explained to Gov. Gavin Newsom why the state had two days of rolling blackouts recently.
PGE Traders Burned by California Heat Wave
PGE (NYSE: POR) said it suffered $127M in losses from wholesale electricity trades due to recent volatility in California's energy market.
Are California Utilities Ready for Fire Season?
The fall season when utility equipment tends to start fires is coming and regulators and reliability coordinators want utilities to be ready.
‘Last Challenging Night’ for CAISO, Governor Hopes
A grueling heat wave that caused rolling blackouts and sparked wildfires across California is expected to abate somewhat starting Thursday.
CAISO: Blackouts May Continue, Calls Emergency Meetings
CAISO declared a Stage 3 emergency, ordering rolling blackouts across the service territories of the state's three big investor-owned utilities.
Calif. to Stay Course on Electrification, CEC Chair Says
The California Energy Commission will stick to the path of electrifying buildings despite a legal challenge filed against it by SoCalGas.

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