PSC Denies $43 Million NWE Rate Case, Approves New Power Plant

The Montana Public Service Commission (PSC) announced its final decision today in NorthWestern Energy’s 2024 electric and natural gas rate case, concluding a 16-month process marked by rigorous analysis, extensive public participation, and a firm commitment to transparency and fairness.

Because NorthWestern self-implemented significantly higher rates in May 2025 based on its original request, customers can expect a reduction in the rates they are currently paying once the PSC’s final, lower rates take effect. Customers will also receive refunds with interest for any overcharges collected durin...