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NorthWestern Energy's energy comes from wind, natural gas, and oil. Wind is the largest source of electricity, providing 92% of NorthWestern Energy's energy. Natural Gas is the second largest source, making up 7%. Oil provides 1% of NorthWestern Energy's electricity.
92%
Wind
7%
Natural Gas
1%
Oil
The average electricity rate for NorthWestern Energy customers is 11.45 cents/kWh. NorthWestern Energy has several different electricity rates for residential customers, as shown in the table below.
| Rate Name | Rate Type | Cost Per kWh |
| Residential Service with Space Heating | Fixed | 7¢ to 14¢ |
| Residential Space Heating and Cooling | Fixed | 8¢ |
| Residential Dual Fuel and Controlled Service. | Fixed | 8¢ |
| Residential Service | Fixed | 7¢ to 14¢ |
In 2021, there were no outages recorded in NorthWestern Energy.
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