In case of solar or wind the source of energy is fusion reaction in the Sun. Photons bring this energy to Earth. Here they are consumed directly in solar panels or cause an atmospheric motion that moves wind turbines.
But in case of tidal power, what is the source? Is Moon going to fly a tiny bit slower because we consumed part of its energy? Is Earth going to rotate a bit slower?
In: Physics
They move something physically and it generates power. Like a wind turbine. Think of a hand crank device, the. Imagine scaled up and letting the waves do the work.
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