Rate & Roof

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Potomac Electric Power Co

Potomac Electric Power Co served 291,516 residential customers in District of Columbia in 2025 (89.8% of the state's residential customers), the 1st largest of 31 utilities reporting there. Bundled service; ownership: investor owned; balancing authority PJM.

The meter, one average month.

Scroll to run 30 days of Potomac Electric Power Co's average residential use through a five-dial register.

Day 30 of 30
Used so far
593 kWh
At 20.77¢/kWh
$123
An average 2025 month: 593 kWh at 20.77¢ comes to about $123, the average bill. Use is spread evenly over 30 days for the picture.

Price ruler0 to 50¢ per kWh

Where 20.77¢ sits.

Potomac Electric Power Co averaged 20.77¢ per kWh against a District of Columbia residential average of 21.94¢: 5.3% below the state figure.

2020 and 2025EIA-861

Five years, same meter.

In 2020 the average Potomac Electric Power Co home used 630 kWh a month at 11.79¢ and paid $74.23. In 2025 it used 593 kWh at 20.77¢ and paid $123: the price per kWh is up 76.2%.

Potomac Electric Power Co, District of Columbia, residential averages, 2020 and 2025
Measure20202025
Price, ¢/kWh11.7920.77
Use, kWh a month630593
Bill, US$ a month74.23123.11
Potomac Electric Power Co customers and sales by class in District of Columbia, 2025, EIA-861 (bundled service)
ClassCustomersMWh sold¢/kWh
Residential291,5162,073,70120.77
Commercial18,5341,158,16023.62

Who else is on the line

Homes are one class.

Homes took 64.2% of the electricity Potomac Electric Power Co sold in District of Columbia in 2025.

Rooftop solar on its linesnet metering

21,479 roofs.

Residential net-metered PV
21,479installations reported for 2025
Capacity
141.1 MWresidential, net metered
Per 1,000 homes
73.7installations per 1,000 residential customers

Service territoryEIA-861

1 counties.

District of Columbia

Counties in District of Columbia where Potomac Electric Power Co reported serving customers in 2025 (1 in all; up to 24 listed).

EIA-8612025Utility 15270

The filing, line by line.

Potomac Electric Power Co, District of Columbia, residential class, 2025. Price basis: revenue divided by kWh sold, all residential customers.
MeasureValueUnit
Average price20.77¢/kWh
District of Columbia average price21.94¢/kWh
Difference from state average-5.3%
Price change over 5 years76.2%
Typical monthly use593kWh
Typical monthly bill123.11US$
Residential customers291,516accounts
Share of DC residential customers89.8%
Size rank in DC1 of 31by customers

Rate plans on fileOpenEI URDB

None shown for this page. Plan counts appear once per utility, on its largest state's bundled page; how plans are counted.

District of Columbia: state average, five-year steps and every provider

Read this first

  • Class-wide averages, not a quote or a bill for any one customer.
  • Plan data comes from a public, crowd-maintained database and can be out of date.
  • All prices on this site are in cents per kWh unless marked otherwise. Bills are US dollars per month.

Credits and notices

The credits and notices that each data source requires are printed word for word with that source in the Sources list below.