As far as I understand, turbines that are powered by ocean tides don’t take energy out of the ocean. Since the tides carry on endlessly regardless of if there is a turbine, how is hydroelectric power not an infinite energy source?
In: Physics
they don’t violate conservation of energy.
Hydroelectric planta simply slow down the rotation of earth to get energy.
But the energy extracted is miniscule compared to the energy that is stored in the earths rotation.
If enough plants, and enough time, earth rotation will slow, such that one half of the planet sees the moon, and the other not. At that point there will be no tides anymore, at least not from the moon.
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