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Photovoltaic (solar cell) Systems

Solar cells convert sunlight directly into electricity. They are made of semi conducting materials .When sunlight is absorbed by these materials, the solar energy generates electrons loose from their atoms, allowing the electrons to flow through the material to produce electricity. This process of converting sun light to electricity (voltage) is called the photovoltaic (PV) effect.

Solar cells are typically combined into modules that hold about 40 cells; a number of these modules are mounted in PV arrays that can measure up to several meters on a side. These flat-plate PV arrays can be mounted at a fixed angle facing south. Several connected PV arrays can provide enough power for a household; for large electric utility or industrial applications, hundreds of arrays can be interconnected to form a single, large PV system.

 
Solar Panel