Sulphur Springs Valley E C Inc
Cooperative electric utility · Arizona · #337 of 3,199 U.S. utilities by customers · EIA utility #18280
Sulphur Springs Valley E C Inc is a cooperative electric utility serving 54,786 customers in Arizona. In 2025 it sold 949 gigawatt-hours of electricity for $124.90M in revenue, an average realized rate of 13.16¢ per kWh across all customer classes and 14.61¢ per kWh for residential customers. Its reported service territory covers 4 counties. EIA records its activities as: generation, distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 46,398 | 408 | $59.60M | 14.61¢ | |
| Commercial | 8,380 | 478 | $57.54M | 12.03¢ | |
| Industrial | 8 | 62.9 | $7.77M | 12.34¢ | |
| Total | 54,786 | 949 | $124.90M | 13.16¢ |
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 (733 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 53,025 | 906 | $115.86M | 14.56¢ |
| 2022 | 53,507 | 898 | $131.19M | 16.25¢ |
| 2023 | 53,435 | 966 | $145.31M | 16.75¢ |
| 2024 | 54,402 | 935 | $112.31M | 13.49¢ |
| 2025 | 54,786 | 949 | $124.90M | 14.61¢ |
Reliability (2025)
Average outage time (SAIDI): 92 minutes per customer per year
Average outages (SAIFI): 0.83 per customer
Average restoration time (CAIDI): 111 minutes
As reported for Arizona 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: 107 GWh
Wholesale power purchased: 886 GWh
Winter peak demand: 117 MW
Energy losses: 4.3% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 100.0% of 54,786 meters
Customer-sited generation (net metering): 1,496 installations, 21.0 MW of capacity
Counties served
Cochise, AZGraham, AZPima, AZSanta Cruz, 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¢
- Navopache Electric Coop, Inc - 46,592 customers, residential 13.52¢
- Mohave Electric Cooperative, Inc. - 46,326 customers, residential 11.27¢
- Navajo Tribal Utility Authority - 43,250 customers, residential 16.41¢
All Arizona utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #18280 in the EIA frame.