Independent profile. Kilowatt Atlas is not affiliated with Pepco (Potomac Electric Power), does not use its logo or branding and cannot take payments, start service or look up accounts. Figures come from public federal data for 2025.
Residential customers
884 thousand
883,572 homes
Average price
21.47 cents
Maryland average 19.53
Average bill
$160.86
Per month at 749 kWh
Price rank
8 of 8
Lowest to highest in Maryland
Potomac Electric Power rates and average bill
Pepco (Potomac Electric Power) reported 822,606 residential customers on bundled service in 2025, using 749 kWh a month on average at 21.47 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 8 Maryland utilities with at least 10,000 bundled residential customers, Potomac Electric Power ranks 8 from the lowest price.
| Average | Cents per kWh | kWh per month | Monthly bill |
|---|---|---|---|
| Pepco (Potomac Electric Power) | 21.47 | 749 | $160.86 |
| Maryland (all utilities) | 19.53 | 945 | $184.42 |
| United States | 17.23 | 874 | $150.68 |
Another 60,966 residential customers use Potomac Electric Power for delivery only and buy their energy from a different supplier. EIA reports their delivery revenue at about 7.78 cents per kWh, or $72.22 a month, which does not include the supply price.
Figures cover all of Potomac Electric Power's states together. A utility with a large territory can have different rates in different places.
Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.
Service area
EIA lists the counties where Potomac Electric Power has distribution equipment. That covers 3 counties in Maryland, District of Columbia. A county can be served by more than one utility, so confirm your address with the utility or your bill.
Maryland (2 counties)
Montgomery, Prince Georges
District of Columbia (1 county)
District of Columbia
Not sure who serves your address? Use find my electric company.
Reliability
For 2025, Potomac Electric Power reported an average of 54 minutes without power per customer and 0.58 interruptions per customer, with major event days left out. The typical interruption lasted about 93 minutes. For comparison, the median state averaged 127 minutes of outage per customer.
Potomac Electric Power had about 74 fewer minutes of outage per customer than the median state. The Maryland figure across its utilities was 80 minutes. One interruption lasting 93 minutes and 0.58 interruptions a year per customer add up to the 54 minute total.
Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), reliability schedule, measured under IEEE 1366. Utilities define events slightly differently, so compare with care.
Rate options and rooftop solar
- Time-of-use pricing. Potomac Electric Power does not report a residential time-of-use program in its 2025 EIA filing. Ask the utility, because programs change. How time-of-use rates work.
- Rooftop solar and net metering. EIA shows 61,215 residential net-metered systems on the Potomac Electric Power grid in 2025, with 470.6 megawatts of capacity. How net metering works.
Who owns and regulates it
A private company owned by shareholders. A state commission reviews its costs and sets or approves its rates in formal rate cases. In Maryland, that review is done by the Maryland Public Service Commission.
Potomac Electric Power is an investor-owned utility based in Maryland, and it also reports customers in 1 other state.
Potomac Electric Power operates in the PJM power market. Power markets set wholesale costs, but your retail rate is set by the rules described above.
Potomac Electric Power compared with Maryland
Of the 7 utilities listed for Maryland, Potomac Electric Power is the 2nd largest by homes, at roughly 22.6% of the state total. Maryland has too few other investor-owned utilities with reported prices to compare Potomac Electric Power with its type, so the state average of 19.53 cents per kWh is the fairest yardstick. Over a year, the typical Potomac Electric Power bill runs about $283 below the state average, with monthly use 195 kWh lower. Potomac Electric Power reports customers in 2 states, and this profile uses its largest, Maryland, for comparisons. 61,215 of its residential customers use net metering, or 69.3 per 1,000 homes, against 49.0 for Maryland as a whole.
Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in Maryland with at least 1,000 residential customers and a reported price.
Other Maryland utilities
| Utility | Type | Homes | Cents per kWh |
|---|---|---|---|
| Pepco (Potomac Electric Power) | Investor-owned | 883,572 | 21.47 |
| Baltimore Gas and Electric (BGE) | Investor-owned | 1,220,644 | 20.19 |
| Delmarva Power | Investor-owned | 493,163 | 19.69 |
| Potomac Edison | Investor-owned | 396,593 | 14.55 |
| Southern Maryland Electric Cooperative | Cooperative | 163,451 | 16.43 |
| Choptank Electric Cooperative | Cooperative | 50,981 | 17.11 |
See every one on the electric companies in Maryland page.
Official site and where to get help
Kilowatt Atlas is not Potomac Electric Power and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.
- Want to understand a line on your bill? Read how to read your electric bill.
- Think your bill is high? Try the bill checker.
- Maryland allows retail choice in part or all of the state. See the provider guide.
Potomac Electric Power questions
What is the average residential electric rate for Pepco (Potomac Electric Power)?
Pepco (Potomac Electric Power) residential customers on bundled service paid an average of 21.47 cents per kWh in 2025, with average use of 749 kWh a month and an average bill of $160.86 (EIA Form EIA-861). The Maryland average was 19.53 cents.
How many customers does Pepco (Potomac Electric Power) have?
EIA reports about 883,572 residential customers for Pepco (Potomac Electric Power) in 2025.
Who regulates Pepco (Potomac Electric Power)?
A private company owned by shareholders. A state commission reviews its costs and sets or approves its rates in formal rate cases. See the regulator for Maryland on the Maryland state page.
How reliable is Pepco (Potomac Electric Power)?
For 2025, Pepco (Potomac Electric Power) reported an average of 54 minutes of outage per customer and 0.58 interruptions per customer, excluding major event days (IEEE 1366). Utilities measure outages in slightly different ways, so compare with care.