Key Points
- The Montana Public Service Commission (PSC) approved a temporary reduction in electric rates for NorthWestern Energy customers, effective July 2, 2025.
- NorthWestern Energy had previously implemented a rate hike of up to 17% without PSC approval in May 2025, citing state law that allows such action if the PSC does not decide within nine months.
- The newly approved rate reflects a 4.2% increase, down from the initially proposed 8.3% hike, following a settlement involving key stakeholders such as the Montana Consumer Counsel and the Montana Large Customer Group.
- For a typical residential customer using 750 kWh per month, the temporary change means a monthly bill reduction of $4.48 compared to the May 23 rate.
- The PSC’s decision passed with a narrow 3-2 vote and is subject to further review as the larger rate case continues.
- If the PSC’s final decision results in a lower rate than the current temporary rate, customers will receive a refund with interest.
- The Yellowstone County Generating Station (YCGS) methane gas plant near Laurel, Montana, is a major factor in the ongoing rate case, with costs and prudency under scrutiny.
- The rate case remains ongoing, with briefs due in July and August and a final PSC order expected later in 2025.
- NorthWestern Energy emphasizes the complexity of delivering reliable energy and the need for transparent communication with customers.
- Consumer advocates and some customers have criticized NorthWestern Energy’s use of the self-implementation statute and lack of advance notice for the May rate hike.
The Montana’s largest utility, NorthWestern Energy, will temporarily lower electric rates for its customers following a contentious regulatory battle and public outcry over an unapproved rate hike earlier this year. The move comes as the Montana Public Service Commission (PSC) seeks to balance consumer protection with the utility’s financial needs, and as the state’s energy landscape faces scrutiny over new infrastructure investments and rising costs.
Why Did NorthWestern Energy Lower Rates for Montana Customers?
As reported by the editorial team at KXLF, the Montana Public Service Commission (PSC) approved a temporary rate reduction for NorthWestern Energy customers after months of examination, including an eight-day evidentiary hearing. The process began when NorthWestern Energy filed for an 8.3% rate increase in July 2024, citing increased costs for electric service delivery and the construction of the Yellowstone County Generating Station (YCGS), a new methane gas plant near Laurel, Montana.
In May 2025, NorthWestern Energy implemented a 17% rate hike without PSC approval, leveraging a Montana statute that allows utilities to self-implement new rates if the PSC does not act within nine months. This move sparked concern among customers and regulators alike. As Amanda Eggert of Montana Free Press reported, NorthWestern Energy’s action was unprecedented in Montana and affected all customer classes, including residential, commercial, and industrial users.
How Was the New Rate Determined?
According to NBC Montana, after extensive hearings and negotiations, NorthWestern Energy agreed to a settlement with several key stakeholders, including the Montana Consumer Counsel, the Montana Large Customer Group, the Federal Executive Agencies, and Walmart Inc.. The settlement reduced the proposed rate hike from 8.3% to 4.2%, which the PSC approved with a 3-2 vote.
The new temporary rate took effect July 2, 2025, and will remain in place until the PSC issues a final order later this year. For a typical residential customer using 750 kilowatt-hours per month, this means a monthly bill reduction of $4.48 compared to the temporary rate that began on May 23, 2025.
What Did the Montana Public Service Commission Say?
As quoted by Alana Lake, Executive Director of the PSC, in KXLF’s coverage,
“This Commission and staff take seriously the PSC’s mandate to protect the public interest while balancing those of the utility. After careful evaluation of the law and arguments presented by all sides, the Commission’s action this week will prevent ongoing unnecessary rate hikes for Montana families and businesses”.
PSC President James Brown said in a November 2024 statement,
“With today’s outcome, the Commission has once again satisfied its obligation to customers of NorthWestern Energy to ensure utility rates are fair and justified. The entire Commission recognizes that Montanans have been facing historically high prices for everything from housing to health care, food to insurance, diesel fuel and gasoline for the last four years. Going into the holiday season this year, electricity bills will be going down for NorthWestern’s electricity customers in the interim period, more than offsetting a smaller increase in their natural gas bills”.
What Was NorthWestern Energy’s Response?
In a July 2, 2025, press release, NorthWestern Energy emphasized its commitment to reliability and transparency:
“Providing reliable energy 24/7 is complex, and customers deserve accurate and transparent information about their electric rates. Our investment decisions focus on maintaining reliability and safety, while keeping bills as low as possible”.
The company also clarified that if the PSC’s final decision results in a lower rate than what’s currently being charged, customers will receive a refund for the difference, with interest. NorthWestern Energy encouraged customers struggling with bills to reach out for assistance and noted that energy rate adjustments are communicated through customer bills.
What Do Consumer Advocates and Customers Say?
The Montana Environmental Information Center (MEIC) has been a vocal critic of NorthWestern’s rate practices, particularly regarding the costs associated with the YCGS methane gas plant. As reported by MEIC, the plant’s construction cost NorthWestern upwards of $320 million, with ratepayers potentially on the hook for over $2.3 billion. MEIC argued that the company’s claims of $58 million in annual market savings are unsubstantiated and insufficient to justify the investment.
MEIC was the only intervenor to file a formal objection to NorthWestern’s interim rate increase, leading to the PSC’s rejection of a $58 million “bridge rate” for YCGS. This decision resulted in a $7.92 monthly saving for electric customers using 750 kWh.
Customers expressed frustration with NorthWestern’s use of the self-implementation statute and lack of advance notice for the May rate hike. As reported by KXLF, customer Ryan Hessler said,
“Just the concept of raising it makes sense. You need to do that at some point, but doing it without telling people, without any sort of public comment… It’s not very good optics for a company to do that out of nowhere, especially for a significant increase that could really affect people”.
What Is the Immediate Impact on Bills?
According to NorthWestern Energy’s official statement, the temporary rate reduction will lower the typical residential customer’s bill by $4.48 per month compared to the rate in effect since May 23, 2025. The PSC’s earlier decision in November 2024 had already resulted in a 7.24% interim reduction, saving customers about $7.96 per month.
However, as reported by the Montana Free Press and other outlets, customers have seen significant volatility in their bills over the past year, with the average residential customer paying $127.16 in July 2025, up from $101.14 in May 2024—a more than 25% increase in just two months.
Will There Be Further Changes?
The rate case is ongoing, with NorthWestern Energy required to submit an opening brief by July 21, 2025. Intervenors will file response briefs by August 11, and NorthWestern will reply by August 26. The PSC is expected to issue a final order later in 2025, which could result in further adjustments to customer rates.
If the final approved rate is lower than the temporary rate, NorthWestern Energy will refund customers for any overcharges, with interest, as confirmed by both the company and the PSC.
What Role Did the Yellowstone County Generating Station Play?
The Yellowstone County Generating Station, a methane gas plant near Laurel, Montana, has been at the center of the rate case. As detailed by MEIC, the plant’s construction cost and projected impact on rates have drawn criticism from consumer advocates, who argue that the investment is risky and may not deliver promised savings.
The PSC denied NorthWestern’s request for a $58 million “bridge rate” to recover costs associated with the plant, stating that the prudency of the investment remains under review.
What’s Next for NorthWestern Energy and Its Customers?
The PSC will continue its analysis of the evidence and arguments presented by all parties before issuing a final decision. The outcome will determine whether the temporary rate remains in place, is further reduced, or is increased. Stakeholders, including consumer advocates and large customers, will have the opportunity to influence the final order through their briefs and public comments.
What Should Customers Do in the Meantime?
NorthWestern Energy advises customers to monitor their bills for updates and to contact the company if they have concerns about payment. The utility offers billing and payment options to assist those experiencing financial hardship.
In summary, the temporary rate reduction for NorthWestern Energy customers in Montana is the result of a complex regulatory process involving utility requests, stakeholder negotiations, and public scrutiny. The final impact on customer bills will depend on the outcome of the ongoing PSC review, with further changes possible before the end of 2025.