USBIA-San Carlos Project
Federal electric utility · Arizona · #910 of 3,199 U.S. utilities by customers · EIA utility #19604
USBIA-San Carlos Project is a federal electric utility serving 14,403 customers in Arizona. In 2025 it sold 227 gigawatt-hours of electricity for $36.40M in revenue, an average realized rate of 16.04¢ per kWh across all customer classes and 16.37¢ per kWh for residential customers. Its reported service territory covers 5 counties. EIA records its activities as: buying transmission, distribution, wholesale marketing, retail marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 12,018 | 125 | $20.42M | 16.37¢ | |
| Commercial | 2,383 | 96.4 | $15.22M | 15.78¢ | |
| Industrial | 2 | 5.8 | $768.00K | 13.30¢ | |
| Total | 14,403 | 227 | $36.40M | 16.04¢ |
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 (865 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 13,031 | 239 | $21.22M | 10.89¢ |
| 2022 | 13,186 | 239 | $23.36M | 11.64¢ |
| 2023 | 12,903 | 234 | $22.85M | 11.64¢ |
| 2024 | 13,341 | 231 | $43.17M | 19.49¢ |
| 2025 | 14,403 | 227 | $36.40M | 16.37¢ |
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 227 GWh
Winter peak demand: 44 MW
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 14,493 meters
Counties served
Gila, AZGraham, AZMaricopa, AZPima, AZPinal, AZ
Other large utilities in Arizona
- Arizona Public Service Co - 1,433,294 customers, residential 17.03¢
- Salt River Project - 1,188,189 customers, residential 13.98¢
- Tucson Electric Power Co - 458,898 customers, residential 14.88¢
- UNS Electric, Inc - 107,073 customers, residential 16.99¢
- Trico Electric Cooperative Inc - 56,123 customers, residential 14.26¢
- Sulphur Springs Valley E C Inc - 54,786 customers, residential 14.61¢
- Navopache Electric Coop, Inc - 46,592 customers, residential 13.52¢
- Mohave Electric Cooperative, Inc. - 46,326 customers, residential 11.27¢
All Arizona utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #19604 in the EIA frame.