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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.
Patchwork of Carbon Policies Troubles Western EIM
A carbon workshop hosted by the EIM underscored how West Coast and Intermountain states can be uneasy partners in CAISO’s real-time market.
BPA Marches Toward EIM Membership
The Bonneville Power Administration (BPA) took another step toward membership in the Western EIM when it kicked off a monthlong public comment process.
SPP’s Western EIS Market Poised to Challenge EIM
SPP has raised the stakes in what could shape up to be a long-term competition to win over the Western electricity market one service at a time.
CPUC Concerned About New PG&E Board Members
The California Public Utilities Commission has asked for more information on Pacific Gas and Electric’s new corporate directors.
Fire Season Starts in Calif. with Power Shutoffs
California’s annual wildfire season kicked off with high winds, a heat wave and precautionary power shutoffs by PG&E to thousands of customers.
An End to the Universal Service Model?
The increasing number of billion-dollar wildfires, floods and hurricanes has some suggesting an end to the universal service model.
Judge Urges Appeals Court to Decide PG&E v. FERC
Bankruptcy Court Judge Dennis Montali certified his decision rejecting FERC's authority over PG&E's wholesale PPAs for direct appeal to the 9th Circuit.
FERC Leery of SCE’s ROE Request for Wildfires
Southern California Edison’s request for a huge transmission rate adjustment based on potential wildfire liability got a tepid reception from FERC.
‘FERC must be Stopped,’ PG&E Bankruptcy Judge Says
The federal judge overseeing PG&E’s bankruptcy case ruled that he retains sole oversight of PPAs the utility has said it may seek to reject.
Wyoming Wind Power Revs up, but is it too much?
Multiple developers are building or seeking to build massive wind projects in Wyoming, but they lack interstate transmission options to export it.

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