Solar energy travels from the sun to the earth in rays. Some are light rays that we can see. Some are rays we can’t see, like x-rays. Energy in rays is called radiant energy.
Lots of people put solar panels on their roofs which capture the energy from the sun and turn it into heat.
Photovoltaic (PV) cells turn the sun’s energy into electricity. Photo means light and volt is a measure of electricity. PV cells are made of two pieces of silicon, the main ingredient in sand. Each piece of silicon has a different chemical added. When radiant energy hits the PV cell, the layers of silicon work together to change the radiant energy into electricity.
So perhaps having more PV panels would help us use more of the suns energy?
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