What is the difference between solar panels that produce electricity and those that produce hot water?
There are two types of “solar panels” — electrical and thermal. The electrical type is general referred to as a “photovoltaic module” or a “solar module.” It is a solid state device or assembly of solid state devices and produces electricity only. This is the type we carry. The thermal type of panel (which we don’t carry) generally consists of water piping, glass and insulation and is generally much larger in size (often 4′ x 10′).