Members of the public and a coalition of advocacy groups are pressing NorthWestern Energy to overhaul its long-term power planning document — arguing the utility's current draft fails to account for the electricity demands of data centers and leans too heavily on conventional generation at the expense of renewable energy.
The criticism is aimed at NorthWestern's Integrated Resource Plan, a required projection of how the utility expects to meet Montana's energy needs over the next 20 years. For Helena ratepayers, the IRP is more than an abstract planning document — it shapes what gets built, what gets retired, and ultimately what shows up on monthly bills. Critics say the current draft understates how much new load data centers could add to the grid and fails to treat climate change as a central planning factor.
Advocacy groups joining the public comment push want the plan to include a more aggressive buildout of renewable energy sources, including solar. Their concern is that a plan built around today's assumptions about load and generation could leave ratepayers exposed if data center demand spikes or if fossil fuel costs rise — risks they argue NorthWestern should be modeling now rather than later.
NorthWestern Energy serves a significant share of Helena's homes and businesses, making the IRP process directly relevant to residents even if the regulatory proceedings feel distant. The utility will need to respond to the public comments as the plan moves through the review process.