CAISO Extended Day-Ahead Market (EDAM)
NOAA
CAISO, California and other parts of the West head into 2025 with a heavy load of priorities: implementing EDAM, developing the infrastructure needed to meet ambitious climate goals, and moving forward with new and continuing initiatives to address some of the ISO’s biggest challenges.
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CAISO’s launch of the Extended Day-Ahead Market will not spell the end of a Western real-time-only offering from the ISO, according to CEO Elliot Mainzer.
Kevin Dooley, CC BY-SA-2.0, via Wikimedia Commons
On the surface, CAISO’s Extended Day-Ahead Market and SPP’s Markets+ will take similar approaches to accounting for greenhouse gas emissions — but important differences remain.
LADWP
The Los Angeles Board of Water and Power Commissioners gave the go-ahead for LADWP to join CAISO’s EDAM, in a move expected to increase the utility’s annual net revenue by almost $40 million.
Tacoma Public Utilities
The West-Wide Governance Pathways Initiative still grapples with political uncertainties and governance concerns despite efforts to fix those issues, proponents of SPP’s Markets+ contended.
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CAISO is considering how to apply fast-start pricing to the Extended-Day Ahead Market — a topic that has been a sticking point for some as entities across the West decide which day-ahead market to join.
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The Balancing Authority of Northern California became the third entity to formally join CAISO’s Extended Day-Ahead Market, following PacifiCorp and Portland General Electric.
Powerex
Powerex intends to terminate a large portion of its rights on PacifiCorp’s transmission system in response to the utility’s plans to update its transmission tariff to align with CAISO’s EDAM.
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The Bonneville Power Administration says following through on its $25 million funding commitment to the development of SPP's Markets+ is simply a matter of preserving choice.
City of Seattle
BPA’s insistence on favoring joining SPP’s Markets+ over CAISO’s Extended Day Ahead Market is “alarming” and could lead to $221 million in economic advantages going up in smoke, Seattle City Light argued.
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