Photovoltaic technology

Photovoltaics (PV) is the name of a method of converting solar energy into direct current electricity. A photovoltaic system employs solar panels composed of a number of solar cells to supply usable solar power.

Power generation from solar PV has long been seen as a clean sustainable energy technology which draws upon the planet’s most plentiful and widely distributed renewable energy source – the sun. The direct conversion of sunlight to electricity occurs without any moving parts or environmental emissions during operation. 

Solar cells

SPOT_3-cell-typesPhotovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium gallium selenide/sulfide.

Photovoltaic efficiency

SPOT cell efficiency

Simplified Efficiency Chart: Amount of solar energy converted into electric power

Efficiency of PV cells can be measured by calculating how much they can convert sunlight into usable energy for human consumption. Accurate and detailed solar cell efficiency chart.