Delaware electricity prices - 19.29¢/kWh (June 2026)
Residential price, average bill, and the data-center story
- Residential electricity in Delaware costs 19.29¢/kWh as of - +6.2% year over year, per U.S. Energy Information Administration data.
- The average Delaware home used 889 kWh that month and paid an average bill of $171.43 (+9.4% vs a year earlier).
- Delaware has the 18th-highest residential electricity price of the 50 states and DC - 5% above the U.S. average of 18.34¢/kWh.
Price by sector
| Sector | ¢/kWh (June 2026) | 1-yr change |
|---|---|---|
| Residential | 19.29¢ | +6.2% |
| Commercial | 14.40¢ | +15.6% |
| Industrial | 12.24¢ | +33.8% |
Data-center rate policy
- Delmarva Power & Light: pending (≥25 MW) - details
Delaware is served by the PJM grid region, where the price of guaranteed generating capacity is set in an annual auction - see PJM capacity auction prices for how that reaches retail bills.
Water
Electricity delivered in Delaware carries 1.96 liters of water per kilowatt-hour consumed at the power plants supplying it (1.30 L/kWh excluding hydropower reservoir evaporation), against a national average of 4.28. That is below the national figure, and it is a property of the grid here rather than of any one building: a data center drawing 100 GWh a year in Delaware accounts for about 51.9 million gallons of power-plant water before it cools anything. All states ranked →
A data center's water use is roughly twelve times larger once the water evaporated at its power plants is counted. The Colorado River arithmetic → · how the water numbers work →
All states ranked → · Download Delaware data (CSV) · Glossary