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December 5, 2025

Portland General Electric (PGE)

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‘Islanded’ BAs Face Tough Choices in Western Market Future, Experts Say
Although one of the aims of day-ahead markets in the West is to fix a fragmented transmission landscape, some islanded entities will have a tough time navigating seams issues likely to arise as markets take shape, analysts at Aurora Energy Research said during a webinar.
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Oregon PUC Approves IOUs’ Wildfire Plans, Issues Recommendations
The Oregon Public Utility Commission approved wildfire mitigation plans proposed by the state’s three investor-owned utilities and supported staff recommendations the commission said the utilities should implement.
PacifiCorp
Northwest Summers Now Include ‘Huge’ Energy Flows from California

Portland General Electric told Oregon regulators that after decades of electricity flowing from north to south through its system during the summer, the flow on a typical summer day has reversed.

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.

CAISO
Panel Ponders Impacts, Priorities Around Western Market Seams

The formation of two competing day-ahead markets will create seams across the West, but at least one utility representative is more worried about seams resulting from the fracture of CAISO’s real-time Western Energy Imbalance Market.

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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.
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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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BPA’s Tx Planning Pause Prompts Talk of New RTO, Stricter TSR Requirements
Following BPA’s pause on certain transmission planning processes, the agency’s customers say it might be time to consider creating a regional transmission organization or imposing stricter requirements to tackle the “exponential growth” of transmission service requests.

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