Maryland · Investor Owned
Potomac Electric Power Co
21.74¢ per kWh, bundled, EIA-861 2025. Average bill $181.58 at 835.2 kWh a month, across 531,090 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: 531,090, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$217.40
21.74¢/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 | 9.21¢ | $73.31 | 796.2 | 27,719 |
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 14.16¢ | $137.90 | 973.9 | 392,335 |
| 2016 | 14.63¢ | $137.90 | 942.5 | 406,698 |
| 2017 | 14.67¢ | $126.80 | 864.6 | 411,877 |
| 2018 | 14.65¢ | $137.09 | 935.4 | 414,870 |
| 2019 | 14.70¢ | $130.89 | 890.1 | 427,744 |
| 2020 | 14.61¢ | $127.17 | 870.3 | 436,852 |
| 2021 | 13.98¢ | $124.43 | 889.8 | 445,521 |
| 2022 | 15.32¢ | $132.80 | 866.9 | 458,433 |
| 2023 | 18.16¢ | $146.49 | 806.7 | 473,603 |
| 2024 | 20.08¢ | $166.63 | 829.9 | 485,483 |
| 2025 | 21.74¢ | $181.58 | 835.2 | 531,090 |
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
Montgomery, Prince Georges.
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