How will weather affect my solar array?

Weather plays a role in the amount of power a solar energy system will generate. Bright sun is obviously the most productive scenario, but power is still produced on overcast days. Unless the panel is completely covered by something, it will continue to produce power. Overall production of energy will be the greatest in the summer months only because the number of hours of sunlight are greater than the winter months. Cold winter days actually allow the equipment to operate very efficiently.