Photovoltaics (PV) or solar cells as they are often called, are semiconductor devices that convert sunlight into direct current (DC) electricity. With the appropriate power conversion equipment, PV systems can produce alternating current (AC) compatible with any conventional appliances, and can operate in parallel with, and interconnected to, the utility grid.

Batteries are often used in PV systems for the purpose of storing energy produced by the PV array during the day, and to supply it to electrical loads as needed (and during periods of power outages). The PV system size and complexities can vary quite a bit depending on specific needs and requirements.

Quick Facts:

The typical main components of a solar home system are the solar module, an inverter, a battery, a charge controller (sometimes known as a regulator), wiring and support structure.One kilowatt-hour (kWh) equals the amount of electricity needed to burn a 100 watt light bulb for 10 hours.

A 1-2 kilowatt (1000-2000 watts) system takes between one and two days to install.

A Solar Energy System can provide electricity 24 hours a day. How? The solar electric modules are combined with batteries in one integrated energy system.

Lighting for 5 rooms uses about 1000 kilowatt hours