February 23, 2025

CAISO Extended Day-Ahead Market (EDAM)

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CAISO Passes Initiatives to Address Meter Data Reporting, Expand Trading
The CAISO Board of Governors and Western Energy Markets Governing Body passed two proposals that address different issues within Western markets.
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FERC Grants PGE Extra Time to Prepare for EDAM
FERC granted CAISO a waiver allowing PGE to join the ISO’s Extended Day-Ahead Market a few months beyond the timeline set out in the market’s standard participation agreement.
The Brattle Group
Updated EDAM Study Shows Doubling of PacifiCorp Benefits
PacifiCorp is poised to realize up to $359 million a year in net benefits from participating in CAISO’s EDAM, nearly double a previous estimate, according to a newly updated study by The Brattle Group.
The Brattle Group
Markets+ ‘Equitable’ Solution to Seams Issues, Backers Say
Proponents of SPP’s Markets+ contend in their latest “issue alert” that the framework provides a much more equitable solution to tackling market seams than under CAISO’s EDAM.
Travel Portland
BPA to Fund Phase 2 of Markets+, Agency Exec Says
The Bonneville Power Administration plans to contribute its full share of funding for Phase 2 of SPP’s Markets+, an executive with the federal power agency has said.
Bonneville Power Administration
‘Leaning’ Evident in BPA Response to NW Senators
CAISO’s adoption of the Pathways Initiative’s “Step 1” changes won't overcome BPA’s objections to the governance of the ISO’s EDAM, Administrator John Hairston told U.S. senators from the Pacific Northwest.
The Brattle Group
Brattle New Mexico Study Shows EDAM Benefits Outpacing Markets+
A new study may dispel the notion that New Mexico utilities must follow the day-ahead market choice of their Arizona counterparts in order to realize benefits from market participation.
Western Power Pool
WRAP Members Vote to Delay ‘Binding’ Phase to Summer 2027
The Western Resource Adequacy Program’s key stakeholder body approved a plan that would postpone the start of its penalty phase by one year, to summer 2027.
Tacoma Public Utilities
3rd ‘Issue Alert’ Compares Pricing Practices in Markets+, EDAM
Enhanced protections against uncompetitive market behavior are among several tools to ensure fair and accurate pricing under a Markets+ framework, according to the latest "issue alert" from entities that back its development.
Black Hills Energy
CAISO’s WEIM Plucks Black Hills Utilities from SPP’s WEIS
CAISO scored a geographically small but symbolically significant victory with the announcement that two Black Hills Energy subsidiaries will move to the ISO’s Western Energy Imbalance Market.

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