CAISO/WEIM
CAISO Board of GovernorsCalifornia Agencies & LegislatureCalifornia Air Resources Board (CARB)California Energy Commission (CEC)California LegislatureCalifornia Public Utilities Commission (CPUC)EDAMOther CAISO CommitteesWestern Energy Imbalance Market (WEIM)WEIM Governing Body
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.
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BPA’s proposed changes to its grid access process have prompted questions about how new readiness criteria will affect established industry practices and financing of new projects.
Brattle Group
An aggregation of more than 100,000 residential batteries provided an average 535 MW of support to California’s electricity grid during a test to prepare for the hot summer period ahead.
Google
Data center applications are piling up in Pacific Gas and Electric’s territory, with some of the new load projected to come online in 2027.
CAISO
CAISO’s Western Energy Imbalance Market provided participants with $422.44 million in economic benefits during the second quarter of 2025, up 15% compared with the same period year earlier despite no change in membership.
SPP
The Colorado PUC voted to approve Public Service Company of Colorado's plans to join SPP’s Markets+, with commissioners split on whether the move is a step toward or away from full RTO participation.
CAISO
FERC affirmed the ability of an independent transmission developer to include an RTO adder in its CAISO formula rate, rebuffing a request by the California Public Utilities Commission to reject the company’s use of the incentive.
West-Wide Governance Pathways Initiative
The West-Wide Governance Pathways Initiative will run its stakeholder processes separately from CAISO’s until the effort's regional organization is formally launched in 2028, even in areas of overlapping interest.
U.S. Army Corps of Engineers
Customers of the Bonneville Power Administration will see power rates increase by about 8-9% over the next three years while transmission rates will jump by an average of nearly 20%, the agency said.
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Below-average temperatures in California this summer have reduced demand and made electric grid operations uneventful so far, with the state reaching 40,000 MW of demand for the first time in July.
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A new Western Resource Adequacy Program task force has been charged with revising the WRAP tariff to clarify that participants can rely on a specific category of CAISO transmission service to count remote resources toward their “forward showing” requirements.
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