Negal Ltd

Solar electric systems are often referred to as "photovoltaic" or "PV" systems. Photovoltaic (PV) systems convert sunlight directly into electricity. The PV systems are usually mounted directly on the roof, but can also be set up in a sunny place in your yard. These systems use photovoltaic (PV) cells to convert sunlight into electricity. PV cells are made of semiconductor materials that release electrons when they are activated by sunlight. These cells can be connected together into modules, and the modules joined to form arrays.

PV arrays are usually connected to a charge-controller which regulates the flow of electricity. The electricity produced by PV arrays is direct-current or DC. This is converted to alternating-current or AC power by an inverter. AC power can be used for most household purposes.

Electricity produced by PV arrays can be used immediately, stored in batteries for later use, or stored on the electric utility grid by using net metering.