San Isabel Electric Assn, Inc
Cooperative electric utility · Colorado · #594 of 3,199 U.S. utilities by customers · EIA utility #16616
San Isabel Electric Assn, Inc is a cooperative electric utility serving 26,166 customers in Colorado. In 2025 it sold 419 gigawatt-hours of electricity for $58.92M in revenue, an average realized rate of 14.06¢ per kWh across all customer classes and 18.86¢ per kWh for residential customers. Its reported service territory covers 7 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 | 23,415 | 176 | $33.27M | 18.86¢ | |
| Commercial | 2,740 | 85.9 | $14.09M | 16.40¢ | |
| Industrial | 11 | 157 | $11.57M | 7.38¢ | |
| Total | 26,166 | 419 | $58.92M | 14.06¢ |
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 (628 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 25,201 | 431 | $56.59M | 16.31¢ |
| 2022 | 25,622 | 421 | $57.10M | 16.35¢ |
| 2023 | 25,872 | 433 | $58.37M | 17.06¢ |
| 2024 | 26,046 | 411 | $56.59M | 17.78¢ |
| 2025 | 26,166 | 419 | $58.92M | 18.86¢ |
Reliability (2025)
Average outage time (SAIDI): 87 minutes per customer per year
Average outages (SAIFI): 0.79 per customer
Average restoration time (CAIDI): 110 minutes
As reported for Colorado under the Other standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 445 GWh
Winter peak demand: 78 MW
Energy losses: 5.1% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 26,166 meters
Customer-sited generation (net metering): 1,419 installations, 9.3 MW of capacity
Counties served
Costilla, COCuster, COFremont, COHuerfano, COLas Animas, COOtero, COPueblo, CO
Other large utilities in Colorado
- Public Service Co of Colorado - 1,605,246 customers, residential 15.90¢
- City of Colorado Springs - (CO) - 264,106 customers, residential 15.43¢
- CORE Electric Cooperative - 182,993 customers, residential 15.62¢
- United Power, Inc - 115,479 customers, residential 16.50¢
- Black Hills Colorado Electric, LLC - 111,502 customers, residential 18.71¢
- City of Fort Collins - (CO) - 80,929 customers, residential 14.34¢
- Mountain View Elec Assn, Inc - 65,946 customers, residential 15.65¢
- Holy Cross Electric Assn, Inc - 61,834 customers, residential 12.45¢
All Colorado utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #16616 in the EIA frame.