Electricity rates in Delaware: 17.79¢ per kWh
Homes in Delaware paid an average of 17.79¢ per kilowatt-hour from August 2025 to July 2026, 1% below the U.S. average of 17.99¢. That is the 19th-highest of 51, between Ohio (18.25¢) and Indiana (16.94¢).
The average Delaware home used 929 kWh a month — the 23rd-most of the 51 — so its typical bill came to $165 a month, the 14th-highest. At the national rate the same 929 kWh would cost $2 more a month.
In July 2026, the latest month published, the Delaware rate was 18.48¢.
| Rank | State | Average rate | Latest month | Average home use | Average bill |
|---|---|---|---|---|---|
| 17 | Wisconsin | 18.74¢ | 19.06¢ | 664 kWh/mo | $124/mo |
| 18 | Ohio | 18.25¢ | 19.45¢ | 867 kWh/mo | $158/mo |
| 19 | Delaware | 17.79¢ | 18.48¢ | 929 kWh/mo | $165/mo |
| 20 | Indiana | 16.94¢ | 16.73¢ | 935 kWh/mo | $158/mo |
| 21 | Colorado | 16.58¢ | 17.00¢ | 677 kWh/mo | $112/mo |
What a month of electricity costs in Delaware
At 17.79¢ per kWh, every extra 100 kWh a month adds $17.79 to the monthly bill and $213 to the year. The table runs from half to twice the Delaware average home's 929 kWh, using the same calculation as the calculator above.
| Monthly use | Per month | Per year | vs. U.S. rate (17.99¢) |
|---|---|---|---|
| 450 kWh (half the average) | $80 | $961 | −$1 |
| 929 kWh (state average) | $165 | $1,983 | −$2 |
| 1,400 kWh (1.5× the average) | $249 | $2,989 | −$3 |
| 1,850 kWh (twice the average) | $329 | $3,949 | −$4 |
Delaware electricity through the year
The average Delaware home's bill peaked at about $198 in July 2026 and was lowest, about $119, in October 2025. Use ran from 651 kWh in October 2025 to 1,207 kWh in February 2026, 1.9 times as much.
The rate moved too, from 16.27¢ in February 2026 to 19.38¢ in May 2026. A monthly rate includes that month's fuel and seasonal charges, which is why the calculator uses the 12-month average for a yearly estimate.
| Month | Rate | Use per home | Bill per home |
|---|---|---|---|
| Aug 2025 | 16.82¢ | 1,089 kWh | $183 |
| Sep 2025 | 18.12¢ | 846 kWh | $153 |
| Oct 2025 | 18.31¢ | 651 kWh | $119 |
| Nov 2025 | 18.81¢ | 707 kWh | $133 |
| Dec 2025 | 17.12¢ | 1,138 kWh | $195 |
| Jan 2026 | 16.51¢ | 1,168 kWh | $193 |
| Feb 2026 | 16.27¢ | 1,207 kWh | $196 |
| Mar 2026 | 17.64¢ | 971 kWh | $171 |
| Apr 2026 | 18.79¢ | 706 kWh | $133 |
| May 2026 | 19.38¢ | 702 kWh | $136 |
| Jun 2026 | 19.29¢ | 889 kWh | $171 |
| Jul 2026 | 18.48¢ | 1,070 kWh | $198 |
Largest electricity providers in Delaware
Among the 6 largest providers listed, average residential rates in 2024 ran from 14.22¢ at Delaware Electric Cooperative to 18.99¢ at City of Newark. On the average Delaware home's 929 kWh that is a difference of $44 a month.
These are 2024 figures, the latest final year. The Delaware average was 16.57¢ that year and 17.79¢ over the last 12 months, up 7% — compare the providers with each other, not with today's average.
Together they serve 91% of Delaware's 473,508 residential customers. The rates are each company's residential revenue divided by kilowatt-hours sold, so customer charges are included; a plan or tier can still differ.
| Provider | Type | Homes served | Average rate | Use per home |
|---|---|---|---|---|
| Delmarva Power | Investor-owned | 275,018 | 17.23¢ | 884 kWh/mo |
| Delaware Electric Cooperative | Cooperative | 104,839 | 14.22¢ | 1,031 kWh/mo |
| City of Dover | Municipal | 21,601 | 15.52¢ | 814 kWh/mo |
| City of Newark | Municipal | 11,888 | 18.99¢ | 692 kWh/mo |
| Town of Middletown | Municipal | 9,071 | 17.12¢ | 924 kWh/mo |
| City of Milford | Municipal | 7,169 | 15.17¢ | 930 kWh/mo |