South Dakota Rates & Tariffs


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 Rates. The blue buttons to the left are links to our Fuel Heating Cost Comparison and Rate Comparison Tools.

Note:  NorthWestern Energy provides natural gas and electricity services through tariffs filed with and approved by the South Dakota Public Utilities Commission. 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.