The amount of sunlight falling on a given area, measured in kWh/m². UK irradiance levels vary: Cornwall has the highest solar potential, while Scotland is lower but still viable. Irradiance directly impacts project returns. Curious about your site’s solar potential? Use our free to find out how much sunlight your land receives and what that could mean for project income.
Irradiance
by Travis Benn | Sep 3, 2025
