Mid-South Electric Coop Assn
Cooperative electric utility · Texas · #403 of 3,199 U.S. utilities by customers · EIA utility #12452
Mid-South Electric Coop Assn is a cooperative electric utility serving 42,522 customers in Texas. In 2025 it sold 1,100 gigawatt-hours of electricity for $148.98M in revenue, an average realized rate of 13.54¢ per kWh across all customer classes and 15.37¢ per kWh for residential customers. Its reported service territory covers 6 counties. EIA records its activities as: distribution, bundled.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 37,251 | 569 | $87.44M | 15.37¢ | |
| Commercial | 5,249 | 174 | $26.76M | 15.40¢ | |
| Industrial | 22 | 357 | $34.77M | 9.73¢ | |
| Total | 42,522 | 1,100 | $148.98M | 13.54¢ |
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 (1,273 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 35,206 | 844 | $95.86M | 12.52¢ |
| 2022 | 37,349 | 921 | $131.88M | 15.43¢ |
| 2023 | 39,215 | 949 | $129.38M | 14.70¢ |
| 2024 | 41,331 | 1,022 | $128.55M | 14.08¢ |
| 2025 | 42,522 | 1,100 | $148.98M | 15.37¢ |
Reliability (2025)
Average outage time (SAIDI): 189 minutes per customer per year
Average outages (SAIFI): 2.30 per customer
Average restoration time (CAIDI): 82 minutes
As reported for Texas 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: 1,127 GWh
Winter peak demand: 244 MW
Energy losses: 2.4% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 100.0% of 42,874 meters
Customer-sited generation (net metering): 867 installations, 7.6 MW of capacity
Counties served
Brazos, TXGrimes, TXMadison, TXMontgomery, TXWalker, TXWaller, TX
Other large utilities in Texas
- TXU Energy Retail Co, LLC - 1,867,539 customers, residential 19.36¢
- Reliant Energy Retail Services - 1,646,366 customers, residential 18.38¢
- City of San Antonio - (TX) - 986,641 customers, residential 12.40¢
- Austin Energy - 577,889 customers, residential 13.14¢
- Entergy Texas Inc. - 531,824 customers, residential 13.89¢
- Pedernales Electric Coop, Inc - 474,954 customers, residential 12.75¢
- Just Energy - 474,201 customers, residential 16.82¢
- El Paso Electric Co - 470,748 customers, residential 13.01¢
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #12452 in the EIA frame.