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December 5, 2025

CAISO Extended Day-Ahead Market (EDAM)

PG&E
Western Utilities Set Sights on RTO After DAM Choice
Four Western utility executives participating in an Energy Bar Association webinar presented their reasoning for why they ultimately chose either SPP’s Markets+ or CAISO’s EDAM, with some eyeing the creation of a full regional transmission organization in the future.
© RTO Insider LLC
Pathways Initiative Unveils RO Proposed Name, Bylaws
The West-Wide Governance Pathways Initiative is preparing to file the incorporation documents for the independent RO that will govern CAISO’s energy markets, while funding challenges remain.
Shutterstock
CAISO’s EDAM Scores Simultaneous Wins at FERC

CAISO’s EDAM clinched a set of wins when FERC approved the market’s revised congestion revenue allocation model and authorized participation for the EDAM’s first two members — PacifiCorp and Portland General Electric.

Shutterstock
Pathways Bill Will Make It to Newsom’s Desk, Author Says
After months of negotiations, the author of the California legislation needed to transform CAISO’s market into an independent regional energy market for the West is confident the state legislature will have a bill to vote on before the session wraps up
Office of Gov. Gavin Newsom
Newsom Renews Call for Passage of Pathways Bill

California Gov. Gavin Newsom renewed his call for lawmakers to pass a bill to authorize CAISO to relinquish governance of its electricity markets and allow it and the state’s utilities to participate in a new “regional organization” designed to oversee a West-wide market.

© RTO Insider LLC
FERC OKs Imperial Irrigation District’s WEIM Agreement

FERC approved CAISO's Western Energy Imbalance Market implementation agreement with Imperial Irrigation District.

CAISO
EDAM Implementation Team Reveals New Intertie Scheduling Approach

CAISO staff showed how the grid operator plans to implement certain parts of its Extended Day-Ahead Market, with stakeholders asking for more time to comment on what they said crossed into potential policy revisions.

Pattern Energy
WRAP Day-Ahead Market Task Force Moves Forward on Concept Paper
The WRAP DAM Task Force is finalizing a concept paper that outlines proposed principles for the program under the new day-ahead market landscape.
NorthWestern Energy
Black Hills-NorthWestern Merger Could Reshape Western Market Map

The proposed merger between Black Hills Corp. and NorthWestern Energy likely will reshape the map in the competition between CAISO’s Extended Day-Ahead Market and SPP’s Markets+ — but it’s still too early to know where new boundaries will be drawn.

© RTO Insider 
State Tx Entity, Regional Markets Feature in Ore. Energy Strategy
The Oregon Department of Energy’s new draft energy strategy points to the importance of new transmission development and expanding electricity markets for meeting the state's energy goals.

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