is another one clean technologies emerging in a strong way across the world, notably in countries
USA & Southern Europe like Spain, Italy &also Egypt. In the past use of solar energy was limited to direct use of
solar heat for heating purposes or for power generation using photo-Voltaic method. In this method the efficiencies
were quite low with high capital costs, thus limiting its use to far flung areas where no other technology could be
built. However the newer technologies developed over the years have bluunte the drawback to a great extent. In
most parts of India, clear sunny weather is experienced 250 t0 300 days a year. The annual global radiation varies
from 1600 to 2200 kwh/m2 which is comparable with radiation received in the tropical and sub-tropical regions. The
equivalent energy potential is about 6,000 million Gwh of energy per year.