Solar panels produce about 15-20 watts per square foot. The amount depends on the panel's efficiency, orientation, and sunlight exposure, so results may vary. The average solar panel generates between 10 and 20 watts of power per square foot, depending on the type and efficiency. . Divide the solar panel wattage (for 100W, 150W, 170W, 200W, 220W, 300W, 350W, 400W, 500W) by the solar panel area to get the solar panel output per square foot for a specific solar panel. Here is the equation: Solar Output Per Sq Ft = Panel Wattage / Panel Area. But "ideal" rarely exists in real life. This is the status in 2024, the value has grown significantly in the last few years, in the year 2010 it was about 80 Wp/m². Under optimal conditions (5 peak sun hours): At noon under direct sunlight: *Note: 1m². . A typical solar panel generates between 1.