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April 3, 2026

John Hairston

The Bonneville Power Administration
BPA Market Decision on Track Despite Calls for Delay
BPA remains on track to issue a decision on which day-ahead market to join by May 2025 despite calls to delay it until fall 2025 to give the agency more time to reconsider its leaning toward SPP’s Markets+.
© RTO Insider LLC
EDAM Won’t Eliminate WEIM-only Option, CAISO CEO Says

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.

Bonneville Power Administration
BPA Touts Markets+ in Response to Seattle City Light Opposition
The Bonneville Power Administration continued to argue that SPP’s Markets+ is preferable to CAISO’s EDAM, stating in a letter to Seattle City Light that potential benefits of a single West-wide market footprint must be viewed with “significant skepticism."
© RTO Insider LLC
BPA: Funding Markets+ Phase 2 Preserves Choice
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
Markets+ Leaning ‘Alarming,’ Seattle City Light Tells BPA
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.
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.
Bonneville Power Administration
BPA Postpones Day-ahead Market Decision Until 2025
The Bonneville Power Administration will delay its decision on choosing between SPP’s Markets+ and CAISO’s Extended Day-Ahead Market until May 2025.
© RTO Insider LLC
Forum Turnout, Tone Could Signal Growing Support for EDAM
The stars may not yet have aligned for CAISO in the contest to bring an organized electricity market to the West, but key industry players appeared to be doing just that at an ISO event to celebrate the progress of its Extended Day-Ahead Market.
© RTO Insider LLC
BANC Moving to Join CAISO’s EDAM
CAISO scored a potentially important victory when the Balancing Authority of Northern California said it will pursue membership in the ISO’s Extended Day-Ahead Market — and not SPP’s Markets+.
BPA
BPA Keeps Rates Flat, Plans $2B in Grid Upgrades

The Bonneville Power Administration said it would keep its power and transmission rates flat for the next two years, even as it pursues a $2 billion grid modernization effort.


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