how much solar energy hits the earth in a day
A typical household Winter energy use is around 2000-3000 KWHs per month or roughly 70-100 KWH per day. 1  Short wavelength (optical wavelengths) radiation from the Sun reaches the top of the atmosphere. 2  Clouds reflect 17% back into space. 3  8% is scattered backwards by air molecules: 4  6% is actually directly reflected off the surface back into space. 5  So