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The sea has currents and tides that circulate round the globe. This massive amount water with high potential movement produces enormous amounts of energy. Tidal is a type of hydropower that converts the energy of tides into electricity or other useful kinds of power. Tidal energy is produced using tidal energy generators. Some of the oldest sea energy technologies use tidal power.

All coastal areas experience 2 high and 2 low tides. These tidal differences can be employed into electricity, but the difference between low and high tides must be at least 5 meters or even more. Giant underwater turbines are placed in regions with high tidal movements, and are built to capture the kinetic motion of the ebbing and soaring of sea tides in order to supply electricity. Tides are far more foreseeable as compare to wind power and solar energy. Electricity Generation The tides of the sea can be employed to generate electric power. The tides are usually very strong.