When a photovoltaic (PV) cell is exposed to the sun's thermal radiation, it absorbs the thermal energy and converts it directly into DC electrical energy. The size of the PV cell and the DC voltage and energy it can deliver are small. A number of these cells are mounted on a plate and connected in series and parallel. These plates together form a solar array. These arrays require sizeable exposed area and reasonably clear skies to deliver useable quantities of electrical energy.Exploiting solar energy and converting it into an electrical form has been under intense development for a long time. It has several advantages.
ADVANTAGES OF PHOTOVOLTAIC ENERGYFirst of all, this energy is free. It consumes no fuel. No fuel means no pollution. It is easily and universally available. Increases in solar radiation leading to increases in solar array output coincide with the increase in the load demand during a day. One advantage of solar energy is that its availability, except for cloud formation, is precise and definite. Scheduling and delivery come on the dot. Electric Power Generation. By Digambar M. Tagare
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