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Solar Energy

Vision & Mission

Solar Energy

INTRODUCTION


The increasing demand of electricity, the high price of oil and the growing concerns for our environment are some of several factors that forcing us to enhance the uses of alternative energy sources. Among a variety of renewable energy sources, solar energy is a sustainable alternative option that can be utilized in various ways and can be used for many applications.

Solar power is produced by collecting sunlight and converting into electricity, heat and lighting. This is done by using solar panels to convert sunlight into electricity, and using solar thermal collectors to absorb solar energy for heating water.

The Earth receives 1.8 x 1017 W of incoming solar radiation continuously at top of its atmosphere. But only half of it reaches the earths’ surface. Factors like absorption, scattering and reflection of light during its passage through the atmosphere are responsible for reduction of the amount of solar radiation available on the earth’s surface

SOLAR ENERGY POTENTIAL
  • • As of February 2006, Photovoltaic technology accounted for less than 1% of worldwide electricity generation.
  • • The amount of solar energy that reaches the Earth’s surface every hour is greater than humankind’s total demand for energy in one year.
  • • The Sun - Main features
  • • Radiant energy output : 3.94 x 1026 W
  • • Radius of the Sun : 6.960 x 108 m
  • • Mean sun–earth distance : 149.6 x 106 Km
  • • Radius of the Earth : 6.378 x 106 m
  • • Energy intercepted by Earth : 1.8 x 1017 W
  • • Solar constant : 1367 Wm-2

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