NorthWestern Corporation is an electric and natural gas utility company that primarily operates in the state of Montana. The company serves over 700,000 customers in Montana, South Dakota, and Nebraska. In Montana, NorthWestern Corporation provides electricity and natural gas to customers in 115 communities across the state. The company owns and operates over 3,000 miles of transmission and distribution lines in Montana, ensuring reliable delivery of electricity to its customers. NorthWestern Corporation also operates several hydroelectric and wind generation facilities in Montana, providing clean energy to its customers. The company is committed to investing in the modernization of its infrastructure and the development of renewable energy resources to meet the energy needs of its customers.
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northwesternenergy.com
NorthWestern Corporation's energy comes from coal, hydroelectric, wind, oil, and natural gas. Coal is the largest source of electricity, providing 65% of NorthWestern Corporation's energy. Hydroelectric is the second largest source, making up 19%. Wind provides 11% of NorthWestern Corporation's electricity. Oil provides 3% of NorthWestern Corporation's electricity. Natural Gas provides 2% of NorthWestern Corporation's electricity.
65%
Coal
19%
Hydroelectric
11%
Wind
3%
Oil
2%
Natural Gas
The average electricity rate for NorthWestern Corporation customers is 12.14 cents/kWh. NorthWestern Corporation has several different electricity rates for residential customers, as shown in the table below.
| Rate Name | Rate Type | Cost Per kWh |
| Residential Electric Delivery Service | Fixed | 13¢ |
In 2021, there were no outages recorded in NorthWestern Corporation.
Credited to customer's next bill at retail rate; granted to utility at end of 12-month period
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