Electricity rates in Great Falls, MT
Great Falls (59,638 people, Cascade County) is served by NorthWestern Energy. Homes on NorthWestern Energy pay about 15.71¢/kWh, 14% more than the Montana average.
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Electric companies serving Great Falls
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| NorthWestern Energy | Investor-owned utility | 15.71¢ | $111 | 334K | 125 |
Power outages in Cascade County right now
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Outage history in Cascade County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 449 | 247 |
| Days with outages | 44 | 39 |
| Most customers out at once | 12,024 (30.7%) | 3,633 (9.3%) |
| Worst day | 2024-10-05 | 2025-12-17 |
Outage minutes by month, 2025
Less outage time than 2024 (449 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Malmstrom Air Force Base 15.7¢
- Fort Benton 15.7¢
- Choteau 15.7¢
- Conrad 15.7¢
- Helena Valley Northeast 15.7¢
- Helena Valley Southeast 15.7¢
- Helena Valley West Central 15.7¢
- East Helena 15.7¢
- Helena 15.7¢
- Montana City 15.7¢
ZIP codes: 59401, 59403, 59404, 59405, 59406
Frequently asked questions
What is the electricity rate in Great Falls?
Most homes in Great Falls get power from NorthWestern Energy, where residential customers pay an average of 15.71¢/kWh including all charges. The Montana average is 13.84¢ and the U.S. average 17.99¢.
What is the average electric bill in Great Falls?
About $111 a month, based on 707 kWh a month (the average for NorthWestern Energy customers) at 15.71¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Great Falls, MT?
NorthWestern Energy serves Great Falls.
How often does the power go out in Great Falls?
In 2025, customers in Cascade County averaged 4 hr 7 min without power. Outages hit 39 days of the year, and the worst day was 2025-12-17, when 3,633 customers (9.3%) were out. Source: ORNL EAGLE-I.