Peak sun hours in New Hampshire (2026)
New Hampshire averages 4.2 peak sun hours per day — 11% below the US average of 4.7. In practical terms, every 1 kW of solar there produces about 1,226 kWh of electricity a year.
Peak sun hours/day
4.2
Annual kWh per kW
1,226
vs US average
-11%
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 4.2 hours, a typical home in New Hampshire needs a system sized to its usage and local sun — see exact numbers on the New Hampshire solar cost page or work it out with our sizing guide.
Peak sun hours in New Hampshire: FAQ
How many peak sun hours does New Hampshire get?
New Hampshire averages about 4.2 peak sun hours per day — 11% below the US average. That works out to roughly 1,226 kWh of electricity per year for every 1 kW of solar installed.
Is New Hampshire good for solar based on sunlight?
Sunlight is only part of the picture. New Hampshire's 4.2 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 New Hampshire solar cost page.