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WHAT ARE THE MAIN USES OF SOLAR ENERGY PANEL?
Solar power has become a popular way to provide power to lighting systems that activate after the sun goes down. From street lights to garden lamps, solar power provides the energy needed to illuminate the darkness late into the night. These lights contain batteries that charge during the day as sunlight hits the solar cells. At night, a photoresistor detects the absence of light and a circuit board triggers the batteries to discharge and provide power to LED lights, which are efficient and bright. Now a days most homes use solar energy panels  in their homes, thus reducing not only pollution from bulbs ,but also cuts down electricity bills.

Solar panels  generate power for devices like emergency phone systems on the side of roads and transportation signals. These devices usually have battery packs in addition to solar panels so that they work even after darkness falls. Like the solar-powered lighting systems, the cells can provide the electricity needed to recharge the battery packs each day.
Some speed cameras along roads rely on solar power during the day.  Many satellites use solar panels to generate power. Engineers will often mount solar panels on arms that can rotate so that the panels always find the best angle to receive as much sunlight as possible.


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