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December 5, 2025

NorthWestern Energy

Turlock Irrigation District to Join Western EIM
CAISO said that Turlock Irrigation District, California’s oldest irrigation district, signed an agreement to join the Energy Imbalance Market in April 2021.
Northwestern Energy
NorthWestern Energy to Join Western EIM
NorthWestern Energy said that it will join the Western Energy Imbalance Market in spring 2021, making it the 14th utility to announce plans to sign on.
ExxonMobil
FERC Rejects Liability Limit in NorthWestern Tx Pact
FERC rejected NorthWestern Energy’s attempt to limit its liability for service interruptions to an ExxonMobil oil refinery in Montana.
Corval Group
DC Circuit Rejects NorthWestern Reg Service Appeal
The D.C. Circuit upheld FERC’s ruling that the proposal by NorthWestern Energy to recover the costs of providing regulation service was not just and reasonable.
Cypress Creek Renewables
Montana PSC Racks up 2nd Lawsuit over PURPA Rates
Cypress Creek Renewables filed suit in U.S. District Court alleging that the Montana Public Service Commission violated PURPA.
Montana PURPA Solar Saga Continues in State Court
Three solar advocates filed a joint challenge to the Montana PSC’s decision to alter the contract terms available to small generators under PURPA.
FERC Declares Montana QF Requirements Illegal
FERC found that the Montana PSC violated PURPA by requiring that qualifying facilities have PPAs and interconnection agreements with utilities.
FERC Rejects Complaint on Montana Solar; 2nd Case Pending
Solar power developers are asking FERC to overrule Montana regulators on how much NorthWestern Energy should pay to PURPA projects.
Puget Sound Energy, Talen Agree to Close Colstrip Units
By Robert Mullin Puget Sound Energy (PSE) and Talen Energy reached an agreement with environmentalists to shut down Units 1 and 2 at the coal-fired Colstrip...
Berkshire Market-Based Sales Restricted in 4 Western BAAs
FERC  revoked authorization for Berkshire Hathaway Energy subsidiaries to sell wholesale power at market-based rates in four  balancing authority areas.

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