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December 5, 2025

Energy Market

Office of Gov. Gavin Newsom
Newsom Reiterates Support for Western Regional Market Push
California Gov. Gavin Newsom again appeared to voice support for the proposed bill that would allow CAISO to relinquish market governance to an independent regional organization, saying the legislation can reduce electricity costs and improve reliability.
CAISO
WEIM Q2 Benefits Exceed $420M, as Total Tops $7.4B
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. 
West-Wide Governance Pathways Initiative
Pathways Initiative Clarifies Near-term Division of Labor with CAISO
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.
MISO
MISO Skirts Max Gen Emergency in July Heat
MISO issued a slew of warning notices and operating instructions — especially in the South region — to help deal with oppressive July heat, forced generation outages and strained transmission.
Colorado PUC
Colorado Commissioners Spar Over PSCo’s Markets+ Choice
Members of the Colorado PUC expressed differing opinions on whether PSCo joining Markets+ would be in the public interest.
IESO
IESO Seeks Feedback on Revised Storage Model
IESO opened discussions on new rules for storage facilities and hybrid resources that will enable the provision of regulation service.
Constellation Energy
FERC Approves Constellation Purchase of Calpine with Conditions
FERC approved Constellation's purchase of Calpine, which will create an even bigger IPP with nearly 60 GW around the country, with the biggest share of that in PJM.
© RTO Insider
FERC Sides with Market Monitor over MISO in Compensation Dispute
FERC sided with MISO IMM David Patton, denying a petition from MISO that would have prevented the RTO from reimbursing the Monitor for reviewing the market impact of transmission planning.
© RTO Insider
WRAP Task Force Explores Optimization Under Day-ahead Markets
A new task force will examine how the WPP’s WRAP can continue to operate efficiently under the new multimarket environment emerging in the West.
Shutterstock
FERC Proposes to Eliminate Western ‘Soft’ Price Cap
FERC is moving to rescind the West-wide wholesale electricity price cap mechanism it instituted in 2002 in response to widespread price manipulation during the Western energy crisis of 2000/01.

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