Most people drive under 20 miles a day. which is about 350 watts * 20 = 7 kw. or using your path 54 square meters covers the energy needs of 85/7 = 12 cars. Th

Most people drive under 20 miles a day. which is about 350 watts * 20 = 7 kw. or using your path 54 square meters covers the energy needs of 85/7 = 12 cars. This is the same idea as you don't use up a full tank of gas on most days.