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March 16, 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.
CAISO
Western EIM Governing Body Elects New Member, Chair
The EIM Governing Body elected Jennifer Gardner to replace retiring member Carl Linvill and appointed Anita Decker as its new chair.
Shutterstock
CAISO Issues Urgent Call for More Summer Capacity
In a rare move, CAISO will use its capacity procurement mechanism to obtain more resources after other measures fell short, threatening summer blackouts.
© RTO Insider LLC
FERC OKs CAISO Wheel-through Restrictions
FERC approved CAISO's controversial rule changes on wheel-throughs, intended to ensure the ISO has adequate capacity this summer.
Oregon State Archives
West Coast Could Be Net Zero by Midcentury
Oregon lawmakers approved a bill requiring major utilities to rely solely on clean energy in 2040, making the West Coast carbon-free by midcentury.
City of Spokane
Avista Orders Blackouts as Temperatures Soar
Thousands of customers of Avista Utilities lost power during a record-smashing heat wave when the utility ordered rolling blackouts in Spokane, Wash.
CARB
California Air Resources Board Sounds off on Net-zero Roadmap
CARB board members sounded off​​​​ on a scoping plan that will serve as a roadmap for the state to reach net-zero greenhouse gas emissions by 2045.
Western ‘Megadrought’ Curtails Hydropower
A drought in the West is cutting into hydropower supplies needed for summer reliability, especially in California, panelists in a USEA briefing said.
California Energy Commission
California PUC Orders Additional 11.5 GW but No Gas
The California PUC ordered an additional 11.5 GW of procurement by mid-decade but backpedaled on a plan to include up to 1,500 MW of fossil fuel generation in the mix.
Shutterstock
Colorado Gov. Signs Bipartisan Bill to Support Interstate Transmission
Gov. Jared Polis signed Senate Bill 72, an infrastructure and transmission bill that would require utilities with transmission facilities to join an RTO.
WECC
Glick Says West Should ‘Finish the Job’ on RTO
FERC Chairman Richard Glick says "the time is right for the states, the region’s utilities and other key stakeholders" to form one or more Western RTOs.

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