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December 6, 2025

PacifiCorp

Quanta Infrastructure Solutions Group
New CAISO-Powerex Dispute Centers on ‘Voluntary’ Nature of EDAM
CAISO dismissed Powerex’s contention that the ISO only recently has “revealed” that participation in its EDAM is voluntary at the balancing authority level but not voluntary for “individual customers” operating within the BA participating in the market.
Oregon State Archives
UPDATED: Oregon Lawmakers Pass Bill to Limit Utility Rate Increases

The Oregon Senate is set to vote on a bill that aims to mitigate the impact of rising energy costs on consumers by prohibiting residential rate increases during the winter and requiring utilities and regulators to analyze consumer affordability when setting rates.

NW Council
NWPCC Appoints Former BPA Official as New Executive Director
The Northwest Power and Conservation Council hired Peter Cogswell, the former director of intergovernmental affairs at BPA, as its next executive director.
PacifiCorp
CAISO Approves New EDAM Congestion Revenue Allocation Design
CAISO's Board of Governors and the Western Energy Markets Governing Body approved a new method for allocating certain congestion revenues in the ISO's Extended Day-Ahead Market, set to launch in 2026
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FERC Clarifies Rules for Markets+ ‘Transmission Contributors’ Option

FERC rejected a request by four Western utilities to rehear its approval of the “transmission contributors” option in the SPP Markets+ tariff but provided the utilities clarification on the boundaries of that provision.

The Imperial Irrigation District
Imperial Irrigation District Inks Agreement to Join CAISO Markets
CAISO said the Imperial Irrigation District has signed implementation agreements and will begin participating in the WEIM and EDAM in 2028.
Shutterstock
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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CAISO, PacifiCorp, PSCo All Close on Order 2023 Compliance

FERC partially approved three entities' Order 2023 compliance filings, directing them to address mostly minor — but a few substantive — issues in their submissions.

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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.
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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