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December 5, 2025

NorthWestern Energy

Seattle City Light
WRAP Wins Commitments from 16 Entities

Sixteen entities have committed to participating in the Western Resource Adequacy Program’s first financially “binding” season covering winter 2027/28, the Western Power Pool said.

© RTO Insider 
FERC Ends Show-cause over SPP FTR Changes
FERC terminated a show-cause proceeding against SPP and accepted the RTO’s proposal to revise its collateral requirements for financial transmission rights by including an additional re-marking mechanism for seasonal products.
© RTO Insider LLC
WRAP ‘Binding’ Phase Set for Winter 2027/28 After Utilities Affirm Commitment
The Western Power Pool’s WRAP secured enough participants for the program to enter the first binding phase after 11 utilities reaffirmed their commitment.
EMC Engineering Services
D.C. Circuit Upholds FERC PURPA Decision Without Chevron Deference
The D.C. Circuit Court of Appeals upheld an earlier decision that sided with FERC on a PURPA case without using Chevron deference, agreeing with the commission's statutory interpretation.
NorthWestern Energy
Black Hills-NorthWestern Merger Could Reshape Western Market Map

The proposed merger between Black Hills Corp. and NorthWestern Energy likely will reshape the map in the competition between CAISO’s Extended Day-Ahead Market and SPP’s Markets+ — but it’s still too early to know where new boundaries will be drawn.

Shutterstock
PURPA Case Offers FERC Early Glimpse of Post-Chevron World
FERC is getting an early taste of life without Chevron deference after the Supreme Court remanded a case involving the Public Utility Regulatory Policies Act back to an appeals court.
WECC
26 Western Entities Signal Continued Support for Markets+
More than two dozen Western electricity sector entities sent a letter to SPP expressing support for the continued development of the RTO’s Markets+, which is competing for participants with CAISO’s Extended Day-Ahead Market. 
NorthWestern Energy
FERC Sides with Wind Developer vs. NorthWestern
FERC granted in part, and dismissed in part, Ponderosa Power’s complaint against NorthWestern’s proposal to assign roughly $30 million in network upgrade costs to the wind farm developer.
NorthWestern Energy
Montana Court Halts NorthWestern’s Plant Construction
A Montana court has invalidated an air quality permit and ordered a halt on construction of NorthWestern Energy’s planned methane plant.
Broad Reach Power
DC Circuit Upholds FERC on Montana PURPA Project
The D.C. Circuit upheld FERC's ruling certifying a Montana solar and storage project as a qualifying facility although it exceeded PURPA's 80-MW limit.

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