Southwest Mississippi E P A
Cooperative electric utility · Mississippi · #607 of 3,199 U.S. utilities by customers · EIA utility #17683
Southwest Mississippi E P A is a cooperative electric utility serving 25,366 customers in Mississippi. In 2025 it sold 482 gigawatt-hours of electricity for $64.99M in revenue, an average realized rate of 13.47¢ per kWh across all customer classes and 15.34¢ per kWh for residential customers. Its reported service territory covers 9 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 | 23,095 | 275 | $42.20M | 15.34¢ | |
| Commercial | 2,255 | 81.0 | $11.37M | 14.04¢ | |
| Industrial | 16 | 126 | $11.41M | 9.04¢ | |
| Total | 25,366 | 482 | $64.99M | 13.47¢ |
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 (993 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 25,516 | 459 | $55.30M | 13.23¢ |
| 2022 | 25,559 | 476 | $59.32M | 13.69¢ |
| 2023 | 25,440 | 463 | $59.84M | 14.19¢ |
| 2024 | 25,416 | 462 | $62.38M | 15.03¢ |
| 2025 | 25,366 | 482 | $64.99M | 15.34¢ |
Reliability (2025)
Average outage time (SAIDI): 2,736 minutes per customer per year
Average outages (SAIFI): — per customer
Average restoration time (CAIDI): — minutes
As reported for Mississippi 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: — GWh
Wholesale power purchased: 516 GWh
Winter peak demand: 134 MW
Energy losses: 6.4% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 100.0% of 25,366 meters
Counties served
Adams, MSAmite, MSClaiborne, MSCopiah, MSFranklin, MSHinds, MSJefferson, MSLincoln, MSWilkinson, MS
Other large utilities in Mississippi
- Entergy Mississippi LLC - 458,925 customers, residential 13.86¢
- Mississippi Power Co - 193,135 customers, residential 15.69¢
- Coast Electric Power Assn - (MS) - 91,721 customers, residential 14.01¢
- Singing River Elec Cooperative - 81,787 customers, residential 13.54¢
- Southern Pine Electric Cooperative - 71,243 customers, residential 14.47¢
- Pearl River Valley El Pwr Assn - 54,457 customers, residential 15.58¢
- 4-County Electric Power Assn - 51,748 customers, residential 13.68¢
- Tombigbee Electric Power Assn - 45,945 customers, residential 13.03¢
All Mississippi utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #17683 in the EIA frame.