Montana 2024 request for regulatory electric and natural gas rate review

Montana 2024 request for regulatory electric and natural gas rate review

Since our last rate review in 2022, NorthWestern Energy expects to have invested more than $1 billion in our Montana natural gas and electric businesses by the end of 2024, costs that are not included in current rates.

NorthWestern Energy is requesting a regulatory rate review to reflect the continued investments to serve our Montana customers in the past two years. Current NorthWestern Energy Montana natural gas and electric rates were set using cost information from 2021.

NorthWestern Energy’s application proposes incremental steps for recovery of our costs increases since the last rate review.

Proposed interim rates

The proposed interim rate, if approved by the Commission, would be implemented on Oct. 1, 2024. 

  • A typical electric residential customer using 750 kilowatt-hours per month would have a monthly bill increase of $2.09, or 1.90%, from July 2024 rates.

  • A typical natural gas residential customer using 65 therms per month would have a monthly bill increase of $4.81, or 9.28%, from July 2024 rates. 

Proposed new rates

The proposed new electric and natural gas rates, if approved by the Commission, would be implemented on April 10, 2025.

  • For a typical electric residential customer using 750 kilowatt-hours per month, the proposed new rate would mean a monthly bill increase of $9.11 or 8.28% from July 2024 rates.
  • For a typical natural gas residential customer using 65 therms per month, the proposed rate would mean a monthly bill increase of $8.84, or 17.04%, from July 2024 rates.

NorthWestern Energy’s investments in our Montana energy business

INFRASTRUCTURE AND EQUIPMENT: We leverage our existing infrastructure and equipment by investing in maintenance, part of our commitment to deliver reliable and affordable service for our customers. Equipment that is no longer efficient or safe is replaced. We are modernizing our electric system in Montana, which involves upgrading our infrastructure, technology, and processes. This enhances our service reliability, our system’s resiliency and reduces the risk of outages and disruptions.

ENERGY GENERATION: We have taken significant steps to address risks to service reliability and affordability due to insufficient on-demand resources in the Montana electric portfolio to meet customer energy needs during critical weather or to participate in new regional energy markets.

NorthWestern Energy continues to reinvest in existing hydro plants to maintain the assets and enhance output.

We have new access to the 175 megawatt Yellowstone County Generating Station, an on-demand generation resource located in Montana that is dispatchable to meet our Montana customers’ energy demand when it is needed most. 

Generation from owned assets located in the state and dedicated to serving our Montana customers provides dependable sources to meet customers’ peak energy demands. It also allows us to avoid making higher-priced purchases from the energy market, flow through costs that customers pay.

The Montana grid has a considerable amount of intermittent wind and solar generation and the Yellowstone County Generating Station’s on-demand, flexible generation keeps the grid stable when generation from those resources is strong and when it drops. 


SYSTEM SECURITY: We prioritize the security of our energy assets and service, including cybersecurity. We implement robust measures to protect our systems from physical and cyber threats, and to respond quickly and effectively in case of an incident.

NorthWestern Energy’s Montana electric and gas services are delivered at high levels of reliability, at the most affordable rates possible. The average energy bills for NorthWestern Energy Montana customers are less than the national average for energy bills, despite the significant flow through costs of Montana property taxes and energy market purchases.

We are requesting this regulatory rate review in to continue to be a financially sound energy company, which benefits our customers and the economy. NorthWestern Energy needs capital to continue the substantial investments in the essential infrastructure required to provide reliable energy service. Financially healthy energy companies are more attractive to investors and can access more capital at lower costs.


What can I do to manage my bill?

We’ve always been available to help those who may be struggling with their energy bills. We offer payment options, referrals for energy assistance programs and a discount for customers enrolled in the Low Income Home Energy Assistance Program. We provide education and tools for energy efficiency to reduce energy use and lower bills.

If you're concerned about paying your bill, reach out to us right away. We have billing and payment options that can help.

Payment Assistance

If you are worried about your ability to pay a higher energy bill, there are payment assistance programs available.

Budget Billing

With Budget Billing, your NorthWestern Energy bill is the same amount each month, year round.

Payment Arrangements

We can also explore a payment arrangement if your account qualifies. Log in to your My Energy Account for payment and billing program information. Or call our Customer Service Team at 800-245-6977 to discuss additional options.

Service & Payment Locations

Our walk-in Customer Service locations are available for in-person assistance. Find the office nearest you.

Home EnergyCheck

Our E+ Home EnergyCheck is a safe, convenient and fun way to have your home’s energy efficiency checked – virtually!

BE ENERGY EFFICIENT

Save money by being more energy efficient. Check out our top-10 low-cost or no-cost tips for energy efficiency.

Understanding your bill

Learn more about the separate pieces that make up your bill and what they all mean.

Our Projects

Project construction in Montana

Our Projects

Learn more about the important infrastructure investments we're making across our service territory.

Frequently asked questions about the Montana Rate Review

The Montana Public Service Commission regulates investor-owned energy companies in the Montana and must approve NorthWestern Energy’s electric and natural gas rates.

It's the Montana PSC's role to balance customers' interests in price, adequate service, and infrastructure, with the need to maintain a financially sound energy company capable of providing reliable energy service.

We know our rate request will impact our customers during a period when other prices are also increasing. NorthWestern Energy is committed to helping customers who may be struggling with their bills.

Options to manage your bill include:

Customer Service Representatives are available to guide customers that might need help. Call 888-467-2669. Walk-in Customer Contact Centers are open weekdays in locations throughout Montana.

Track your energy use in My Energy Account

With My Energy Account, you can visually track your energy use, month-to-month and year-over-year. Understanding your energy use can help you develop habits to save energy and money.