Delaware electricity prices - 18.48¢/kWh (July 2026)
Residential price, average bill, and the data-center story
- Residential electricity in Delaware costs 18.48¢/kWh as of - +11.5% year over year, per U.S. Energy Information Administration data.
- The average Delaware home used 1,070 kWh that month and paid an average bill of $197.81 (−4.7% vs a year earlier).
- Delaware has the 19th-highest residential electricity price of the 50 states and DC - 1% above the U.S. average of 18.31¢/kWh.
Price by sector
| Sector | ¢/kWh (July 2026) | 1-yr change |
|---|---|---|
| Residential | 18.48¢ | +11.5% |
| Commercial | 13.80¢ | +10.0% |
| Industrial | 11.71¢ | +5.6% |
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