Planning our Clean Energy Future

Long-term resource planning helps deliver affordable and reliable energy into the future.

Electric Supply Planning

Wind turbines at the Two Dot Wind Farm at sunset

Electric Supply Planning


NorthWestern submits an electricity supply resource plan to our state regulatory commission every 2 to 3 years. These plans serve to inform and support the resource management decisions necessary to ensure a reliable and affordable supply of electricity for all of our customers. They evaluate our current portfolio of electricity generation resources and identify our future needs over a 20-year forecast period. The development process for our 2022 Electricity Supply Plan is underway. Get involved and stay in touch by signing up for email updates.  We’ll let you know when meetings are scheduled and provide information on how to participate in our stakeholder meeting process.

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Montana Integrated Resource Plan 2023

NorthWestern Energy’s commitment to provide all our customers with reliable, safe energy service at the most affordable cost and to be responsible stewards of the environment remains the cornerstone of our mission as we enter our second century in the energy business.

2022 Electricity Supply Plan

We plan to file our IRP with the Montana Public Service Commission by March 31, 2023.

Previous Plans

Where does your energy come from?

See, in real time, the resources being used to produce your electricity.