Maryland · Cooperative
Southern Maryland Elec Coop Inc
16.43¢ per kWh, bundled, EIA-861 2025. Average bill $192.34 at 1,171.0 kWh a month, across 162,860 customers on that row.
Maryland averaged 19.53¢/kWh and $184.42 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 162,860, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$164.30
16.43¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Other service rows
Delivery and bundled prices cover different charges, so they are listed separately.
| Row | ¢/kWh | Bill | kWh | Customers |
|---|---|---|---|---|
| Delivery only | 6.17¢ | $56.06 | 907.9 | 591 |
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 12.34¢ | $152.96 | 1,239.1 | 144,137 |
| 2016 | 13.07¢ | $157.28 | 1,203.0 | 143,309 |
| 2017 | 12.90¢ | $148.31 | 1,149.5 | 143,831 |
| 2018 | 12.32¢ | $156.02 | 1,266.1 | 145,347 |
| 2019 | 12.44¢ | $149.36 | 1,200.2 | 147,617 |
| 2020 | 11.43¢ | $132.95 | 1,163.2 | 149,028 |
| 2021 | 12.10¢ | $145.04 | 1,198.2 | 150,840 |
| 2022 | 15.26¢ | $181.70 | 1,190.6 | 153,234 |
| 2023 | 14.13¢ | $154.24 | 1,091.5 | 155,671 |
| 2024 | 14.84¢ | $170.08 | 1,146.1 | 158,375 |
| 2025 | 16.43¢ | $192.34 | 1,171.0 | 162,860 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Calvert, Charles, Prince Georges, St Marys.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool