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May 22, 2025

EDAM

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Turlock Irrigation District to Join EDAM in 2027
California-based Turlock Irrigation District has agreed to join CAISO’s Extended Day-Ahead Market in 2027.
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Debate Lingers After BPA Day-ahead Market Decision
Though BPA removed any uncertainty by selecting SPP’s Markets+ over CAISO’s EDAM, the debate over whether BPA made the right choice likely will heat up as the West confronts a split into two major markets.
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Puget Sound Energy Inks Agreement to Join Markets+
Puget Sound Energy said it is joining Markets+, marking another win for SPP shortly after the Bonneville Power Administration issued its final market policy in favor of the day-ahead market.
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BPA Chooses Markets+ over EDAM
Bonneville's final record of decision will come as little surprise to those who’ve been following market developments in the West.
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Panel Explores How Western Markets Have ‘Played off’ Each Other
In the competition between two Western day-ahead markets — CAISO’s EDAM and SPP’s Markets+ — the two market operators have “sort of played off one another,” an industry observer said during a panel.
CAISO
CPUC, Others Question Details of EDAM Congestion Revenue Proposal
Stakeholders and state energy officials continue to raise concerns about a draft proposal that would adjust how congestion revenues are allocated in CAISO's EDAM, with the ISO aiming for a vote on the final plan in the coming weeks.
CAISO
CAISO Issues ‘Expedited’ Plan for Allocating EDAM Congestion Revenues
CAISO released a draft final proposal detailing how EDAM will allocate congestion revenues in circumstances when a transmission constraint in one BAA produces “parallel” flows in a neighboring BAA also participating in the market.
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CAISO Pauses Study of New Market Run Proposal for Gas Resources

CAISO sidelined a proposal to provide an additional market run for gas resources due to a lack of information on the subject and a need for operational experience with the ISO’s Extended Day-Ahead Market.

CAISO
Urgent EDAM Congestion Revenue Issue ‘Will Take Time’ to Address
The complex issue regarding congestion revenue allocation in CAISO’s Extended Day-Ahead Market continues to raise questions and cause some confusion for market participants.
© RTO Insider
BPA Flooded with Comments on Draft Day-ahead Market Decision
The Bonneville Power Administration elicited nearly 150 comments in response to the draft policy outlining its decision to join SPP’s Markets+ rather than CAISO’s Extended Day-Ahead Market.

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