Delmarva Power Electricity Rates and Average Bill (Delaware)
Data through July 2026 (the latest month EIA has published) · Updated October 13, 2026
As of July 2026, Delmarva Power's residential customers in Delaware paid an average effective rate of 18.99¢/kWh with an average monthly bill of $218.59, per EIA Form 861-M data. That rate is 0.5¢ above the Delaware average of 18.48¢/kWh; the U.S. average is 18.31¢/kWh.
Rate trend vs the Delaware average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| August 2025 | 18.10 | 179.69 | 993 |
| September 2025 | 19.51 | 154.71 | 793 |
| October 2025 | 19.54 | 114.11 | 584 |
| November 2025 | 20.04 | 138.32 | 690 |
| December 2025 | 17.86 | 208.73 | 1169 |
| January 2026 | 17.11 | 197.92 | 1157 |
| February 2026 | 17.34 | 188.80 | 1089 |
| March 2026 | 18.78 | 173.31 | 923 |
| April 2026 | 20.08 | 132.19 | 658 |
| May 2026 | 20.34 | 137.05 | 674 |
| June 2026 | 20.29 | 179.87 | 887 |
| July 2026 | 18.99 | 218.59 | 1151 |
Delmarva Power vs Delaware vs the U.S.
| Delmarva Power | Delaware | U.S. average | |
|---|---|---|---|
| Rate (July 2026) | 18.99¢/kWh | 18.48¢/kWh | 18.31¢/kWh |
| Average monthly bill | $218.59 | $197.81 | $212.44 |
| Average monthly usage | 1151 kWh | 1070 kWh | 1160 kWh |
| Rate change, 1 year | +8.6% | +11.5% | +4.9% |
Estimate a bill at Delmarva Power rates
Worked example: 1,000 kWh at Delmarva Power's average effective rate of 18.99¢/kWh is about $189.90. The utility's actual average usage is 1151 kWh/month, which produces the $218.59 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full Delaware 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.