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NWE Contact Bar, in Montana dial 1-888-467-2669, in South Dakota or Nebraska dial 1-800-245-6977
Important Message  Due to a system maintenance scheduled to begin at 6pm on Thursday, November 14th, our Contact Centers will be staffed for emergency purposes only on Friday, November 15th and our Walk-in Offices will be closed on Friday, November 15th. Normal business hours will resume on Monday, November 18th. Access to Online Customer Care services will be unavailable during this system maintenance.

As of September 2018
Northwestern Energy tariffs are provided online for both electric and natural gas services. By selecting the tabs at the bottom of page you can find links to the online summaries, tariffs and rates, rules and regulatory filings. The blue buttons to the left are links to our Fuel Heating Cost Comparison and Rate Comparison Tools.

To Find Out More About Our Tariffs
NorthWestern Energy provides natural gas and electricity services through tariffs filed with and approved by the Montana Public Service Commission (MPSC). Users of electronic tariffs should note that such tariffs are not the official documents, and users assume responsibility for reliance upon tariffs in electronic format.

If you have a question about our electric or natural gas rates, you may contact us.

Download Instructions
The rate schedules and service rules are in format. If you do not have Adobe Acrobat Reader installed on your computer, you will need to download it free from the Adobe Site to view the documents.

NorthWestern Energy's FERC electric Open Access Transmission Tariff is provided online in WORD format. If you would like to print or read either of these documents, we recommend you download them. If you do not have access to Microsoft Word, you can download the Microsoft Word Viewer free from Microsoft.

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