Montana PSC takes public comment on NorthWestern Energy's Integrated Resource Plan
Jul 23, 2026
NorthWestern Energy, Montanas largest utility company, has introduced an updated long-range plan for how theyll provide electricity in the state. The Montana Public Service Commission has been holding hearings this week to get t
he publics input on the proposed plan.NorthWesterns Integrated Resource Plan lays out analysis on how the company can deliver power over the next 20 years. State law requires utilities to update their resource plan every three years.The PSC took comment from more than 30 people during a pair of public hearings Tuesday and Thursday night in Helena.Looks like weve got a lot of interest today thats a good thing, said PSC President Jeff Welborn at Thursdays hearing.(Watch the video to hear some of the testimony from the public hearing.) Montana PSC takes public comment on NorthWestern Energy's Integrated Resource PlanNorthWesterns plan says the company has enough capacity to meet needs today, but that they could start to see a shortfall during the winter as soon as 2027, due to growing demand and the end of some long-term contracts to purchase power. The plan puts an emphasis on reliable electricity generation resources, and it calls for the coal-fired power plant in Colstrip to remain active as long as possible.However, everyone who spoke at Thursdays meeting was unsatisfied with the plan. Many said NorthWestern was putting too much emphasis on fossil fuel development and potential future nuclear power, while not giving fair consideration to wind and solar energy.The PSC needs to hold NorthWestern Energy accountable and responsible to provide the most cost-effective and low-impact energy to its customers, said Pat Clancey, of Helena.NorthWesterns plan says the addition of large data centers is a source of uncertainty, but also an opportunity for Montanas energy system. The company said its models showed data center development would require more generation capacity but wouldnt lead to significant cost increases per megawatt-hour, because of efficiencies in an economy of scale.Those in attendance Thursday said they were unconvinced. Will Swearingen, of Bozeman, called on the company to release more specific information about resource needs with and without data centers, to make clear any development wont harm current customers.To assure ratepayers this cost shift will not occur, the PSC should demand that Northwestern Energy revise its plan, he said. PSC staff said the commission has the authority to determine a utilitys plan is inadequate and ask them to come back and address any deficiencies, but they dont have the power to approve or reject the final version.If you still want to weigh in on NorthWesterns Integrated Resource Plan, the PSC will be accepting public comment through Tuesday, July 28. You can send comments by mail to the PSC at P.O. Box 202601, Helena, MT 59620, or by email to [email protected], or use the commissions online portal at reddi.mt.gov, under Docket 2026.04.026.Welborn said the commission will review all public comments, and will likely have a work session on NorthWesterns IRP sometime in mid-August.
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