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December 20, 2025

EDAM

© RTO Insider LLC 
BPA Execs Lay out Markets+ Benefits, Risks, Reasons
BPA's biggest risks in joining SPP’s Markets+ come down to footprint size and the limited transmission connectivity between the Northwest and Southwest entities most inclined to join the market, agency executives said.
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Rising Tensions Evident at BPA Day-ahead Markets Workshop
A polite discussion at a BPA day-ahead market participation workshop ended on a testy note as critics of the staff leaning in favor of SPP’s Markets+ urged the agency to rethink its position and consider once again delaying a market decision.
E3
BPA Sticks to Markets+ Leaning Despite Study Showing EDAM Benefits

New findings from a much-anticipated study have “not shifted” BPA's staff recommendation that the agency choose SPP’s Markets+ over CAISO’s — despite results showing greater economic benefits from EDAM.

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BPA Markets+ Support Intact Despite Exec’s Resignation, Agency Says

The Bonneville Power Administration’s commitment to fund the second phase of SPP’s Markets+ won’t be swayed by the departure of the executive leading the agency’s day-ahead market initiative, an official told the Markets+ Participants Executive Committee.

Arizona G&T
Arizona G&T Cooperatives Announces Pursuit of EDAM Benefits Study
A group of Southwest electric cooperatives explore ways to motivate the Western Area Power Administration’s Desert Southwest Region to join CAISO’s Extended Day-Ahead Market.
© RTO Insider LLC
SPP Sees Bias in Brattle Western Market Studies, Exec Says

An SPP executive closely involved with developing Markets+ said recent Brattle Group studies on Western day-ahead markets appear to be aimed more at swaying utilities in favor of CAISO’s EDAM than providing an unbiased assessment.

Camano Island Chamber of Commerce
5th ‘Alert’ Touts Markets+ Support for Clean Resources, GHG Policy

Markets+ proponents argue that the SPP framework allows more flexibility for integrating greenhouse gas emission reduction programs across various states than CAISO’s EDAM.

West-Wide Governance Pathways Initiative
Revised Pathways Proposal Focuses on Sector Issues
The West-Wide Governance Pathways Initiative has revised its “regional organization” stakeholder process proposal to expand the size of a key stakeholder committee and boost representation for some groups.
Powerex
Powerex Contests Brattle’s EDAM/Markets+ Comparative Study
The study comparing key features of CAISO’s EDAM and SPP’s Markets+ contains “several material misstatements of facts” and overlooks evidence “directly contrary to its conclusions,” Powerex contends.
The Brattle Group
Brattle Study Finds EDAM Gains, Markets+ Losses for BPA, Pacific NW
BPA would earn $65 million in annual benefits from joining CAISO’s EDAM but face $83 million in increased yearly costs from participating in SPP’s Markets+, according to a new Brattle study.

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