A solar energy system can be effective with as little as 4-5 hours of direct sunlight per day, although more sunlight will generally result in higher energy production.
A solar energy system can be effective with as little as 5 hours of direct sunlight per day, although the ideal range is typically 6 to 8 hours.
A solar energy system can be effective even with moderate sunlight, but it is ideal to have a substantial amount of sunlight for optimal efficiency.