Potomac Electric Power Co electricity rates

It serves 485,483 residential customers, making it one of the larger utilities in Maryland. Its 20.08¢ per kilowatt-hour sits 7.8% below the Maryland average of 21.77¢.

Consumption is close to the national norm at 830 kilowatt-hours a month against 871, so the rate translates fairly directly into the bill.

A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.

In 2024 the average Potomac Electric Power Co customer went 65 minutes without electricity across 0.59 interruptions. The median across the 941 utilities that report this is 185 minutes.

That is markedly better than typical. Short outage durations usually mean an underground or heavily automated network, and they are expensive to achieve, which is part of why reliable systems often carry higher delivery charges.

35,706 residential customers had net-metered solar in 2024, totalling 292.26 megawatts. That works out to 73.5 installations per thousand customers, against a median of 8 across the utilities reporting it.

Adoption here is exceptionally high. That usually means some combination of a high retail rate worth displacing, strong sunshine and favourable export rules, and it tends to bring its own regulatory argument about who covers the fixed cost of the network. What exports are actually worth.