Potomac Electric Power Co Electricity Rates and Average Bill (District of Columbia)
Data through August 2026 (the latest month EIA has published) · Updated October 31, 2026
As of August 2026, Potomac Electric Power Co's residential customers in District of Columbia paid an average effective rate of 24.55¢/kWh with an average monthly bill of $178.21, per EIA Form 861-M data. That rate is 1.4¢ below the District of Columbia average of 25.98¢/kWh; the U.S. average is 18.16¢/kWh.
Rate trend vs the District of Columbia average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| September 2025 | 22.37 | 110.70 | 495 |
| October 2025 | 22.51 | 97.75 | 434 |
| November 2025 | 21.44 | 96.66 | 451 |
| December 2025 | 22.96 | 164.82 | 718 |
| January 2026 | 22.57 | 168.63 | 747 |
| February 2026 | 22.80 | 155.98 | 684 |
| March 2026 | 23.62 | 146.33 | 619 |
| April 2026 | 24.10 | 105.12 | 436 |
| May 2026 | 23.96 | 111.84 | 467 |
| June 2026 | 22.74 | 124.44 | 547 |
| July 2026 | 23.79 | 183.59 | 772 |
| August 2026 | 24.55 | 178.21 | 726 |
Potomac Electric Power Co vs District of Columbia vs the U.S.
| Potomac Electric Power Co | District of Columbia | U.S. average | |
|---|---|---|---|
| Rate (August 2026) | 24.55¢/kWh | 25.98¢/kWh | 18.16¢/kWh |
| Average monthly bill | $178.21 | $205.51 | $209.23 |
| Average monthly usage | 726 kWh | 791 kWh | 1152 kWh |
| Rate change, 1 year | +11.7% | +12.1% | +3.4% |
Estimate a bill at Potomac Electric Power Co rates
Worked example: 1,000 kWh at Potomac Electric Power Co's average effective rate of 24.55¢/kWh is about $245.50. The utility's actual average usage is 726 kWh/month, which produces the $178.21 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full District of Columbia rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.