The average solar panel generates 1.5 kWh of energy each day. Solar panel productivity largely depends on rated wattage and local sunshine conditions. Electricity production will be higher on sunny days with clear skies and lower during cloudy weather or on short winter days.
You can estimate solar panel power output by multiplying a panel’s efficiency rating by your location’s peak sunlight hours, which you can find using the Global Solar Atlas. For example, a 400 W panel in an area with 4.3 watt-hours of peak sunlight would generate 1,720 watt-hours or 1.7 kWh of energy each day.
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