The average residential electric rate in Delaware is 18.79¢ per kWh as of 2026-04 (EIA). Over the past year it peaked at 18.81¢ in 2025-11 and bottomed at 16.27¢ in 2026-02.
| Month | ¢/kWh |
|---|---|
| 2025-05 | 18.13¢ |
| 2025-06 | 18.16¢ |
| 2025-07 | 16.58¢ |
| 2025-08 | 16.82¢ |
| 2025-09 | 18.12¢ |
| 2025-10 | 18.31¢ |
| 2025-11 | 18.81¢ |
| 2025-12 | 17.12¢ |
| 2026-01 | 16.51¢ |
| 2026-02 | 16.27¢ |
| 2026-03 | 17.64¢ |
| 2026-04 | 18.79¢ |
Averages hide your utility's actual tariff — the calculator takes your real rate, fees, and taxes, and can model seasonal costs per appliance.
Calculate your costs in Delaware →