Energy costs in Wilmington, DE
Energy prices are published by state, not by city, so the rates and bills below are Delaware figures and apply to Wilmington the same as anywhere else in the state. The solar production is different: that is modelled for Wilmington's own coordinates, and it varies a lot within a single state.
Solar at Wilmington's coordinates
8,182kWh a year from 6 kW
That is close to the Delaware average, so the state figure would not have misled you here. At 19.38¢ a kilowatt hour it pays back in about 7.6 years with full net metering.
Electricity · Delaware
19.38¢
per kWh, statewide ›
Typical bill · Delaware
$165
a month, statewide ›
Air conditioning
$236
a year, statewide ›
Heating
$1586
a season, statewide ›
Common questions
What is the electricity rate in Wilmington?
19.38¢ per kilowatt hour. That is the Delaware residential average from the EIA — rates are published per state, not per city, so it applies across Wilmington and the rest of Delaware alike.
What is the average electric bill in Wilmington?
About $165 a month for a typical Delaware household. Again this is a state figure: EIA reports revenue and customer counts by state, so a city-level bill would be an invention.
Is solar worth it in Wilmington?
A 6 kW system at Wilmington's coordinates is modelled at about 8,182 kilowatt hours a year, which pays for itself in roughly 7.6 years at Delaware electricity prices with full net metering. This one is genuinely local — production is modelled for this point, not the state.
Everything for Delaware
Rates, bills, heating, cooling and solar for the whole state, with the working behind each figure.
Delaware energy costsCoordinates from the US Census Bureau place gazetteer. Solar production modelled by NREL PVWatts for those coordinates, south-facing at 20°. Prices from the US Energy Information Administration, residential sector, 2026-05, published per state.