Peak sun hours in Delaware (2026)
Delaware averages 4.4 peak sun hours per day — 7% below the US average of 4.7. In practical terms, every 1 kW of solar there produces about 1,285 kWh of electricity a year.
Peak sun hours/day
4.4
Annual kWh per kW
1,285
vs US average
-7%
What this means for your system
To produce a given amount of electricity, you need fewer panels where there are more peak sun hours. At 4.4 hours, a typical home in Delaware needs a system sized to its usage and local sun — see exact numbers on the Delaware solar cost page or work it out with our sizing guide.
Peak sun hours in Delaware: FAQ
How many peak sun hours does Delaware get?
Delaware averages about 4.4 peak sun hours per day — 7% below the US average. That works out to roughly 1,285 kWh of electricity per year for every 1 kW of solar installed.
Is Delaware good for solar based on sunlight?
Sunlight is only part of the picture. Delaware's 4.4 peak sun hours are below average, so panels produce a little less, but your electricity rate and incentives matter just as much. See the full economics on our Delaware solar cost page.