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December 27, 2025

California Independent System Operator (CAISO)

CAISO Finalizes Rules for DR, Distributed Generation
CAISO finalized a set of updates to its demand response and distributed generation policies, saying there is strong stakeholder support for the new rules.
UPDATE: Trump Fights Congress, History with Tx Sale Bid
Some members of Congress have joined power utilities in opposing Trump’s proposal to sell assets of the federal power marketing administrations.
CAISO Boosts Reserves After August Event Report
CAISO will increase its daily procurement of operating reserves in response to the erroneous tripping of solar generation caused the loss of 1,200 MW.
Plan Would Apply Aliso Canyon Measures Across CAISO, EIM
CAISO stakeholders pressed the ISO for details on a proposal to broaden and make permanent some of the operational measures it developed in response to the Aliso Canyon gas restrictions.
California Lawmakers Take Up CAISO Expansion
California lawmakers are concerned that expanding CAISO into a regional grid operator could result in higher electricity bills and job losses.
CAISO Mulls Making Aliso Canyon Measures Permanent
CAISO has proposed to make permanent its practice of curtailing gas burn and using market tools to reduce the reliability risk posed by Aliso Canyon.
California Senate Passes Bill Mandating 100% RPS
The California State Senate passed a bill that would require the state's load-serving entities to obtain all their electricity from renewables by 2045.
Los Angeles Dept. of Water Power Signs Pact to Join EIM
The Los Angeles Department of Water and Power (LADWP) is the 11th utility to announce plans to participate in the CAISO-run Energy Imbalance Market (EIM).
Powerex Slated to Become First Non-US EIM Member
Powerex has signed an agreement with CAISO to become the first non-U.S. participant in the Western Energy Imbalance Market (EIM).
RTO Officials Tout Market Benefits, Encourage Regulator Scrutiny
Panelists discussed the CAISO Energy Imbalance Market at the annual meeting of the Western Conference of Public Service Commissioners.

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