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Abstract The sun has been worshiped as a life-giver to our planet since ancient times. The industrial ages gave us the understanding of sun light as an energy source. The discovery has never been more important than now as we realise that the exploitation offossil energy source may be affecting the planet’s ambient. The energy supply from the sun is truly enormous: on average Earth’s surface receives about L2XIOl7 W of solar power. This means that in less than one hour enough is supplied to the Earth to satisfy the entire energy demand of the human population over the whole year. Indeed, it is the energy of sun light assimilated by biological organism over millions of years that has made possible the industrial growth as we know it today. Most of the other renewable means of power generation also depend on the Sun as a primary source: hydroelectric, wind and wave power all have the same origin.[3] Today, the direct conversion of the light into electricity, or photovoltaics CPV), is becoming accepted as an important form of power generation. PV power generation is reliable, involves no moving parts, and the operation and maintenance cost are very low. The operation of a PV system is silent, and creates no atmospheric pollution. PV systems are modular, and can be quickly installed. Power can be generated where it required without the need of transmission lines. |