A solar panel is a set of solar photovoltaic moduleselectrically connected and mounted on a supporting structure. A photovoltaic module is a packaged, connected assembly of solar cells. The solar panel can be used as a component of a larger photovoltaic system to generate and supplyelectricityin commercial and residential applications. Each module is rated by itsDCoutput power under standard test conditions (STC), and typically ranges from 100 to 320 watts. Theefficiencyof a module determines the area of a module given the same rated output - an 8% efficient 230 watt module will have twice the area of a 16% efficient 230 watt module. A single solar module can produce only a limited amount of power; most installations contain multiple modules. Aphotovoltaic systemtypically includes a panel or an array of solar modules, aninverter, and sometimes a batteryand/orsolar trackerand interconnection wiring. BuyDirect hosts companies on the website that focus specifically on solar panels. Visit our BuyDirect Solar Panels category at http://www.buydirect.co.za/category/8770/Solar-Panels.html