As of July 1, 2009
NorthWestern Energy tariffs are provided online for both electric and natural gas services. The drop-down menus to the left provide links to the online tariffs. The links to the right will take you to rate summaries as well as to our rate comparison tool.
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Electric Rates
Natural Gas Rates
Townsend Propane
Electric Transmission Tariff
Natural Gas Service Rules
Electric Service Rules
Customer Choice Schedules
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Note: If you have questions about the tariff sheets, e-mail us.
Propane Supply
NorthWestern Energy recently filed its Propane Supply Rate Adjustment and Annual Tracking Mechanism for Propane Supply at Townsend, Montana, with the Montana Public Service Commission under Docket No. D2008.12.142. Click here to download a PDF of the filing.
Qualifying Facilities
NorthWestern Energy has established a QF-1 Tariff Queue Procedure for finalizing contracts with the numerous requests we have received for Qualifying Facility power purchase agreements.
Electric Supply
NorthWestern Energy recently filed its 2007 Electric Supply Resource Procurement Plan with the Montana Public Service Commission. Click here to download the 2007 Plan from our Web site.
Natural Gas Supply
NorthWestern Energy recently filed its 2009 Natural Gas Biennial Procurement Plan with the Montana Public Service Commission. Click here to download the 2009 Plan from our Web site.
Download Instructions
The rate schedules and service rules are in .PDF 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.
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.
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