City of Idaho Falls - (ID)
Municipal electric utility · Idaho · #489 of 3,199 U.S. utilities by customers · EIA utility #9187
City of Idaho Falls - (ID) is a municipal electric utility serving 34,150 customers in Idaho. In 2025 it sold 779 gigawatt-hours of electricity for $65.24M in revenue, an average realized rate of 8.38¢ per kWh across all customer classes and 9.60¢ per kWh for residential customers. Its reported service territory covers 1 counties. EIA records its activities as: generation, distribution, wholesale marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 29,403 | 327 | $31.35M | 9.60¢ | |
| Commercial | 4,742 | 387 | $30.09M | 7.77¢ | |
| Industrial | 5 | 64.9 | $3.79M | 5.84¢ | |
| Total | 34,150 | 779 | $65.24M | 8.38¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (925 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 29,660 | 732 | $51.38M | 7.91¢ |
| 2022 | 31,097 | 763 | $56.35M | 8.16¢ |
| 2023 | 31,688 | 783 | $61.14M | 8.76¢ |
| 2024 | 32,782 | 764 | $61.95M | 9.25¢ |
| 2025 | 34,150 | 779 | $65.24M | 9.60¢ |
Reliability (2025)
Average outage time (SAIDI): 51 minutes per customer per year
Average outages (SAIFI): 0.47 per customer
Average restoration time (CAIDI): 108 minutes
As reported for Idaho under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 247 GWh
Wholesale power purchased: 754 GWh
Winter peak demand: 156 MW
Energy losses: 2.9% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 100.0% of 34,150 meters
Customer-sited generation (net metering): 265 installations, 2.4 MW of capacity
Counties served
Bonneville, ID
Other large utilities in Idaho
- Idaho Power Co - 657,261 customers, residential 11.78¢
- Kootenai Electric Cooperative - 33,924 customers, residential 13.43¢
- Northern Lights, Inc - 24,325 customers, residential 12.32¢
- Fall River Rural Elec Coop Inc - 21,316 customers, residential 11.10¢
- Clearwater Power Company - 10,730 customers, residential —
- United Electric Co-op, Inc - (ID) - 7,692 customers, residential 8.50¢
- Raft Rural Elec Coop Inc - 5,418 customers, residential 10.68¢
- City of Burley - (ID) - 5,337 customers, residential —
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #9187 in the EIA frame.