Solar Energy application
You may have seen the use of solar calculator - from the calculator does not need batteries, and sometimes these calculators do not even have the Close button. As long as there is sufficient light, the calculator seems to be able to go to work.
You may have seen larger solar panels - in an emergency traffic signs, public telephone booths, floats and even car parks and power indicator light on the battery to see this board. While these large-scale solar panel calculator is not as common, but they do exist, if you know the appropriate location, would be very easy to find them. Solar cells is also mounted on the satellite to its power supply.
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In the last 20 years, you may have heard the “solar revolution” that argument - talking about the day when we will all use free of charge from the solar energy received. This is a seductive promise: On a clear day, sunny days, solar radiation to the surface of the Earth about 1,000 watts of energy per square meter, if we can be all the energy collected can be easily for residential and Office to provide free electricity.