Yesterday i came to know from my friend who has gone to stay inUSA for 6 months that the building in which he was staying gets illumination from sunlight.he says that device is such tha it catches outsidelight and illuminate inside at the level of light outside means what illumnation get onroad.obviouslylight got shut with sunset.Can anybody know how these system works?if we used such system here it will save lots of elecrical units
# It's not affected by the supply and demand of fuel and is therefore not subjected to the ever-increasing price of gasoline.
# The savings are immediate and for many years to come.
# The use of solar energy indirectly reduces health costs.
Besides, it is environmental friendly.
Solar Energy has its disadvantages too.