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December 29, 2025

California Independent System Operator (CAISO)

Southern California Edison Preparing for Distributed Energy Future
Edison International, and its SoCalEd subsidiary, are maneuvering to capitalize on California’s effort to meet its greenhouse gas emissions goals.
PGE Sees Transmission, Distribution Role in ‘Clean Energy Future’
PG&E's 2nd quarter profits fell sharply due to a series of one-time costs; but hopes to grow by providing transmission for clean energy resources.
EIM Report Shows Continued Growth in CAISO Exports
The western Energy Imbalance Market continued to boost demand for California’s surplus renewable generation last quarter.
Governance Plan Critics Urge Slowdown of Western RTO Development
Critics say CAISO is moving too quickly in its effort to get a plan for a Western RTO to California lawmakers before legislative session's end.
CAISO: Forecasting Challenges Drove Increased Regulation Requirements
CAISO  provided an explanation of its decision to increase regulation requirements in response to the growing variability on its system.
Revised Western RTO Governance Plan Highlights State Authority
CAISO released a revised set of principles for governing a Western RTO in a bid to convince skeptics that an expanded ISO will be amenable to the entire region.
Utah Bill Would Require Legislative OK for PacifiCorp RTO Membership
Utah lawmakers plan to draft a bill requiring PacifiCorp to gain legislative approval before joining an RTO based on an expanded CAISO.
Mountain West RTO Could Pose Competition for CAISO
A parallel effort to create an organized electricity market (RTO) is taking shape in the inland West even as CAISO attempts to expand.
Study Touts Benefits of CAISO Expansion
A study suggests CAISO’s expansion into a multistate RTO could save Western ratepayers billions while helping meet emission-reduction goals.
FERC Order Prods CAISO to Allow EIM Intertie Bidding
FERC rejected the CAISO proposal to prohibit EIM participants from implementing economic bidding at the market’s external interties.

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