3 ms·None of the power comes from the Earth's rotation. Angular momentum is conserved in a closed system.by bhk 2y agoNone of the power comes from the Earth's rotation. Angular momentum is conserved in a closed system.thayne 2y agoBut it isn't a closed system. Tides transfer angular momentum from earth's rotation to the moon's orbit.bhk 2y agoI was responding to a claim about wind. Yes, we can extract energy from tidal forces.