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December 5, 2025

CAISO Extended Day-Ahead Market (EDAM)

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PacifiCorp Next to Leave WRAP After Raising Concerns
PacifiCorp joins other utilities leaving the Western Power Pool’s Western Resource Adequacy Program just before the deadline to commit to the program’s first binding phase.
Portland General Electric
PGE to Explore Alternatives After Withdrawing from WRAP
PGE is exploring an alternative to the Western Power Pool’s Western Resource Adequacy Program that better suits its upcoming participation in CAISO’s Extended Day-Ahead Market, the utility told Oregon regulators.
Camerafiend, CC BY-SA-3.0 via Wikimedia Commons
4 Entities Join NV Energy in Exiting WRAP, While Idaho Power Commits

Calpine, Eugene Water & Electric Board, PGE and PNM joined NV Energy in leaving the Western Resource Adequacy Program, while Idaho Power signaled its continued commitment.

CAISO
‘Aggressive’ EDAM Schedule ‘Going Smoothly’ for PacifiCorp, PGE

PacifiCorp and Portland General Electric remain on track to join CAISO’s Extended Day-Ahead Market on their planned entry dates, although the schedule remains “very tight and very aggressive."

CAISO
Pathways Co-chair Maps out ‘Enhanced’ Stakeholder Process for Western Markets
The West-Wide Governance Pathways Initiative’s Launch Committee Co-Chair Pam Sporborg said the stakeholder process of the new regional organization that will oversee CAISO’s energy markets is an evolution of the ISO’s Regional Issues Forum.
© RTO Insider LLC
NV Energy Files Request to Join EDAM
NV Energy has asked Nevada regulators for permission to join CAISO’s Extended Day-Ahead Market, which would fill in a central piece of the market's footprint.
CAISO
EDAM Participants Exploring Potential New Western RA Program
NV Energy said it is discussing a potential new resource adequacy program with other participants in CAISO’s Extended Day-Ahead Market.
New Mexico PRC
PNM Accounting Request Revives EDAM vs. Markets+ Debate
State regulators approved an accounting order for Public Service Company of New Mexico’s participation in CAISO’s Extended Day-Ahead Market, in a case that rekindled the debate over which day-ahead market PNM should choose. 
JIRSA Hedrick
Split Colo. PUC Approves Xcel Energy’s Markets+ Application
The Colorado PUC issued a split decision approving Public Service Company of Colorado’s application to join SPP’s Markets+, finding that market participation is in the public interest and will “provide a number of benefits.”
Moonwater Capital
NV Energy to Withdraw from WRAP
NV Energy notified the Public Utilities Commission of Nevada that it plans to leave the Western Power Pool’s Western Resource Adequacy Program, citing five critical issues with the program’s design.

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