Puget Sound Energy

  • Last Coal-Fired Plant in Washington State Converting to Natural Gas

    The lone remaining coal-fired power plant in the state of Washington will shut down at the end of December, and will be converted to burn natural gas. Operator TransAlta Corp. on December 9 signed an agreement with Puget Sound Energy (PSE) for the transition, with a 16-year, fixed-price contract for the gas-fired generation that runs through 2044.

  • Puget Sound Energy, Heimdall Power Launch Smart Sensor Transmission Line Project

    Northwest U.S. utility Puget Sound Energy (PSE) has joined with Norway-headquartered Heimdall Power on a dynamic line rating (DLR) pilot project in Washington state. The companies on October 22 said Heimdall is installing 75 advanced monitoring devices, known as “Neurons,” on about 100 miles of electricity transmission lines across five counties in western Washington.

  • Puget Sound Energy Commits $10M to Nuclear Power Feasibility Work, X-energy SMR Technology a Leading Contender for Project

    Energy Northwest, a Washington state public power joint operating agency, announced an agreement with Bellevue-based Puget Sound Energy (PSE), which it says will “accelerate the agency’s program examining the feasibility of developing and deploying a next-generation nuclear energy facility.” The agreement, a $10 million investment by PSE in Energy Northwest’s new nuclear project feasibility phase, […]

  • Golden Hills Wind Farm in Oregon Achieves Commercial Operation

    ORANGE, CT – May 2, 2022 – Avangrid Renewables, LLC, a subsidiary of AVANGRID, Inc. (NYSE: AGR), today announced that it has achieved commercial operation at its 200 Megawatt (MW) Golden Hills wind farm in Sherman County, Oregon. The facility, which provides enough clean, renewable electricity to Puget Sound Energy (PSE) to power over 60,000 […]

  • 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 a 740-MW coal-fired boiler. The price? $1. “Securing more capacity for only a $1 investment is a unique opportunity that helps give us the time […]

  • In a Surprise Announcement, Colstrip Units 1 and 2 to Close by Year-End

    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 announced July 2022 closure date. “The decision to retire Colstrip Units 1 and 2 comes after extensive review and exhaustive efforts over the last few […]

  • 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 the plant was not economically viable. A spokesman for Talen Energy confirmed to POWER on August 9 that the company will continue to operate the […]

  • 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 later than July 2022. The settlement came as a result of a lawsuit brought by the Montana Environmental Information Center and the Sierra Club in […]

  • 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 alone through efficiencies, a new study says.  The report commissioned by PacifiCorp stems from a memorandum of understanding signed by the independent system operator (ISO) […]