Delaware electricity rates
20 residential tariffs from 10 utilities. Across the 6 filed since 2020, the median costs $0.1100 per kWh at 1,000 kWh a month once fixed charges are included — the cheapest $0.0638, the most expensive $0.1622.
$0.1100median $/kWh
10utilities
20tariffs on file
80%time-of-use
30%filed since 2020
Rate structures in Delaware
| Structure | Tariffs |
|---|---|
| Time-of-use + tiered | 12 |
| Time-of-use | 4 |
| Flat | 2 |
| Tiered | 2 |
Lowest effective rates at 1,000 kWh/month
Ranked across the 6 tariffs filed since 2020 — 30% of those on file here. Older filings are excluded because they are systematically below what utilities now charge; see methodology. Effective rate includes fixed charges, and availability restrictions may apply.
| Utility | Tariff | Structure | Filed | $/kWh | Annual |
|---|---|---|---|---|---|
| Delmarva Power | Residential Space Heating Service | Tiered | 2025 | $0.0638 | $765.94 |
| Delmarva Power | Residential TOU Non-Demand Service | Time-of-use | 2025 | $0.0642 | $769.87 |
| Delmarva Power | Residential Service | Time-of-use + tiered | 2025 | $0.0668 | $801.79 |
| Delmarva Power | Residential Space Heating Service | Time-of-use + tiered | 2025 | $0.1531 | $1,837.48 |
| Delmarva Power | Residential TOU Non-Demand Service | Time-of-use | 2025 | $0.1560 | $1,871.52 |
| Delmarva Power | Residential Service | Time-of-use + tiered | 2025 | $0.1622 | $1,945.98 |