20 years ago, solar cells were created, and occasionally used to create electricity. These solar cells are made of photovoltaic (comes from the Greek word photo: which means light, and voltaic: which means electricity). The photovoltaic cells are made of a semi-conductor (such as silicon). The cells use the suns energy and directly transform them into electrical energy. This works by absorbing the light, and giving the energ
• Creates absolutely no pollution at all.
• Only efficient when it’s a clear sunny day.
• No fossil fuels or elements needed to be mined.
Some topics in this essay:
Solar Cell, Energy, Solar Energy, Photovoltaics, Electricity, Photovoltaic Array, Sun, Electric Current,
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