Renewable energy is a hot topic in today’s world. One source of alternative energy is the hydraulic power from tides. Earth’s tides are caused by the gravitational pull of the sun and moon. The attraction of the sun and moon pulls on the entire planet. We only see the effect on the ocean because it is a loose mass. Tidal power works with the same concepts as with any power plant. One method of harnessing tidal power is to build a dam across an inlet. During high tide valves in the dam are opened and ocean water is allowed to flow in. During slack tide the valves are closed, and tunnels with turbines in them are opened. As water is released out of the reservoir, the turbine spins and is generates electricity. Another method is to place towers with turbines in the inlet. The current of the incoming and outgoing tides turn the turbines and generate power.
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