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December 28, 2025

California Independent System Operator (CAISO)

Gas, Solar, Efficiency Nudge Coal in Arizona Public Service IRP
Arizona Public Service expects to meet its future energy needs through increased use of natural gas and solar, while reducing coal reliance.
EIM Panel Backs Schmidt for 2nd Governing Body Term
The Energy Imbalance Market nominating committee is recommending that Kristine Schmidt be reappointed to the market’s Governing Body.
California to Reconsider Retail Choice
California officials are reconsidering retail choice, two decades after a deregulation drive that faltered in the Western Energy Crisis of 2000/01.
Western Regulators Supportive of EIM Charter Changes
Western state utility commissioners expressed support for providing the CAISO EIM Governing Body with increased authority.
Stakeholders Advance on Western Regional Forum Proposal
Participants in a forum created by CAISO to discuss EIM issues and want to move quickly to complete an evaluation that will shape the group’s role.
EIM Charter Changes Would Give Governing Body More Power
CAISO management is proposing to amend the EIM charter to explicitly provide the market’s Governing Body with a voice in any future governance changes.
PacifiCorp IRP Sees More Renewables, Less Coal
PacifiCorp has released a 20-year plan that commits to increased investment in renewable resources and energy efficiency while reducing reliance on coal.
CAISO to Create New TAC Area for Water District
CAISO is seeking to create a new transmission access charge area for the Metropolitan Water District of Southern California.
New Campaign Urges Renewed Effort to Expand CAISO
A coalition of environmental, renewable energy and business groups called on California officials to reignite CAISO’s effort to expand its operations.
CAISO, BPA Ink Agreement to Ease Northwest EIM Transfers
CAISO has signed a transmission agreement with the Bonneville Power Administration designed to facilitate Energy Imbalance Market transfers.

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