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Puget Sound Energy


Ownership Shakeup at Colstrip Coal Power Plant

NorthWestern Energy said it will file an application with the Montana Public Service Commission for pre-approval to acquire Puget Sound Energy’s (PSE’s) 25% interest in Colstrip Unit 4, which is…


In a Surprise Announcement, Colstrip Units 1 and 2 to Close by Year-End
Colstrip-coal-power-plant-Talen-Energy

Talen Montana—part-owner and operator of the Colstrip Steam Electric Station—announced that Units 1 and 2 at the coal-fired power plant will be retired by year-end, well ahead of a previously…


Operator Reverses Course, Will Keep Running Montana Coal Plant

The operator of one of the largest coal-fired power plants in the Western U.S. will continue to run the facility, changing course about a year after a company executive said…


Colstrip Units 1 and 2 Will Shut Down by 2022

Talen Energy and Puget Sound Energy (PSE), owners of Units 1 and 2 at the Colstrip Power Plant in Montana, have reached an agreement to shut those units down no…


Study: CAISO-PacifiCorp Grid Integration Could Bolster Reliability, Environmental Goals

Integrating California Independent System Operator's (CAISO's) and PacifiCorp's networks—the two largest high-voltage transmission grids in the West—could yield billions of dollars in shared cost reductions within the first 20 years…