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March 18, 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.
Retiring CPUC President Still Has Lots to Say
As he prepares to retire, California PUC President Michael Picker reflected on the commission's history and his time there.
Calif. Wildfire Panel Urges End to Strict Liability
California's Commission on Catastrophic Wildfire Cost and Recovery recommended overturning the state’s liability standard for utility-sparked fires.
Western Regulators Worry About Pull of Politics
Commissioners from a dozen Western states gathered in Wyoming to share their concerns and discuss the challenges of their jobs.
CAISO Defers Day-ahead, SATA Initiatives
CAISO is postponing stakeholder initiatives on day-ahead market enhancements and storage-as-transmission assets, while adding four new initiatives.
California Regulators OK Utility Wildfire Plans
The California PUC unanimously approved wildfire mitigation plans filed by the state’s large investor-owned utilities in response to last year’s SB 901.
New RCs Tell WECC Transition on Schedule
The key players in the Western reliability coordinator transition told WECC they’re on track to take over on a staggered timeline from July to December.
ALJ Endorses CPUC ‘Stress Test’ on 2017 Wildfire Costs
The California PUC released a judge’s proposed ruling approving “stress test” methodology to determine rate recovery for 2017 wildfire costs.
California Utilities Prepare as Fire Season Looms
California utilities are bracing for fire season as it heads into summer, but officials say questions remain about how to gauge their level of readiness.
PGE Gets More Time to File Bankruptcy Plan
The federal judge overseeing PG&E Corp.’s bankruptcy case gave the company four more months to come up with a Chapter 11 reorganization plan.
RC West Moving Smoothly Toward July Handover
CAISO’s RC West has been shadowing Peak Reliability as the ISO prepares to take over reliability coordinator functions by the end of this year.

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