Solar Electricity/Photovoltaic-Solar electric panels are mounted on the roof or on a ground rack. The photons of the sun generate DC electricity in the panels and the inverter changes the DC electricity into useable AC electricity for your home or business. Systems are designed to meet your needs and in most cases eliminating your annual electric bill completely. No maintenance required. Solar Swimming Pool Heating- Solar pool heating panels are mounted to the roof or a ground rack. In the spring and summer months roof shingles can get to 150 degrees fahrenheit.