As you can see from the above diagram of a solar panel, photons are contained within the suns rays and beam down to earth.
Once these photons reach the solar panel, they are absorbed by the silicon material, and this allows electrons to be knocked off their orbit.
As the electrons are knocked off their orbit, they become free electrons and are able to pick up a current, resulting in the flow of electricity to external sources.
New technologies are making renewable energy devices much more efficient and a viable contender for electricity production from fossil fuels.
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