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.
WECC Summit Explores Rapid Change in the West
Speakers at this year’s Western Reliability Summit discussed the growth of solar, the challenges of cybersecurity and the dangers of climate change.
FERC Denies PGE Rehearing over Contracts Dispute
FERC rejected PG&E’s request to rehear its ruling that it shares authority with a federal bankruptcy judge over any PPAs the utility might seek to modify.
Cold Forces NW to Dip More Deeply into EIM as Avista Joins
Pacific Northwest members reaped an unusually large chunk of the Western EIM's benefits in the first quarter, leaning on it to keep up with demand.
FERC OKs NERC Violation Settlements
FERC accepted settlements with Duquesne Light Co. and an unnamed municipal utility in the Western Electricity Coordinating Council for violations of NERC reliability standards.
California Regulators Weigh PGE’s Fate
The California Public Utilities Commission hosted a forum on the fate of PG&E, where some experts urged it to break up the utility.
PG&E Departure Leaves EIM Vacancy
The CAISO Energy Imbalance Market's Governing Body will search for a candidate to replace Kristine Schmidt after she resigned earlier this month.
Washington, Nevada Join 100% Clean Energy Movement
Washington state lawmakers approved legislation Monday requiring the state to rely entirely on zero-emissions and renewable energy by 2045.
West Wrestles with Resource Adequacy, Grid Reliability
The spring joint meeting of the Committee on Regional Electric Power Cooperation and the Western Interconnection Regional Advisory Body focused on grid reliability and protecting crucial infrastructure.
Former FERC Commissioner Brownell Named PGE Chair
PG&E Corp. said that former FERC Commissioner Nora Mead Brownell would be its new board chair and that Jeffrey Bleich would chair its utility subsidiary.
Calif. Must Limit Wildfire Liability, Governor Says
California Gov. Newsom’s “strike force” on utilities and wildfires called for the state to limit utilities' liability while still holding PG&E accountable.

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