Here's my friend John showing me his new solar panels and wind generator. These solar panels track the sun to get maximum power all day long.
This is the inverter which turns the solar-generated direct current to 220 volts AC. The solar panel, 12' x 16', can generate 2.5 kilowatts. The wind generator can do 1.6 kilowatts. On a cloudless, windy day, John's electric meter runs backwards. Here in the Mojave Desert, sun and wind are plentiful.