Yellowstone Valley Elec Co-op
Cooperative electric utility · Montana · #642 of 3,199 U.S. utilities by customers · EIA utility #20997
Yellowstone Valley Elec Co-op is a cooperative electric utility serving 23,683 customers in Montana. In 2025 it sold 311 gigawatt-hours of electricity for $43.58M in revenue, an average realized rate of 13.99¢ per kWh across all customer classes and 14.22¢ per kWh for residential customers. Its reported service territory covers 6 counties. EIA records its activities as: distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 21,471 | 230 | $32.71M | 14.22¢ | |
| Commercial | 1,950 | 73.1 | $9.77M | 13.36¢ | |
| Industrial | 262 | 8.3 | $1.10M | 13.23¢ | |
| Total | 23,683 | 311 | $43.58M | 13.99¢ |
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 (893 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 21,730 | 301 | $37.27M | 12.49¢ |
| 2022 | 22,385 | 315 | $38.94M | 12.38¢ |
| 2023 | 22,826 | 314 | $39.20M | 12.54¢ |
| 2024 | 23,296 | 312 | $41.29M | 13.35¢ |
| 2025 | 23,683 | 311 | $43.58M | 14.22¢ |
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 329 GWh
Winter peak demand: 70 MW
Energy losses: 5.1% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 23,683 meters
Customer-sited generation (net metering): 456 installations, 3.9 MW of capacity
Counties served
Big Horn, MTCarbon, MTMusselshell, MTStillwater, MTTreasure, MTYellowstone, MT
Other large utilities in Montana
- NorthWestern Energy LLC - (MT) - 439,003 customers, residential 14.42¢
- Flathead Electric Coop Inc - 77,288 customers, residential 10.04¢
- USBIA-Mission Valley Power - 23,250 customers, residential 9.39¢
- Missoula Electric Coop, Inc - 16,781 customers, residential 10.93¢
- Ravalli County Elec Coop, Inc - 12,194 customers, residential —
- Glacier Electric Coop, Inc - 7,964 customers, residential —
- Fergus Electric Coop, Inc - 7,157 customers, residential 15.91¢
- Lincoln Electric Coop, Inc - 6,909 customers, residential —
All Montana utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #20997 in the EIA frame.