Estimate savings
Solar by state

Solar in Delaware

Across Delaware, homeowners pay about 12.8¢/kWh and a typical 6 kW system pays back in roughly 11.7 years after the 30% federal tax credit.

State avg rate 12.8¢/kWh
Typical payback 11.7yrs
Best Solar Value Fair

Counties in Delaware

Kent County
13.7¢/kWh · 8,466 kWh/yr
$1,156/yr 10.9 yr payback
New Castle County
13.7¢/kWh · 8,430 kWh/yr
$1,151/yr 10.9 yr payback
Sussex County
11.2¢/kWh · 8,382 kWh/yr
$942/yr 13.4 yr payback
Figures are modeled estimates from NREL PVWatts v8 + EIA. Not affiliated with NREL, DOE or EIA · not financial advice. Last updated June 2026.