Tidal energy is: renewable energy.
In tidal bays or estuaries, you can see the rise and fall of sea or river water twice a day. The one in the morning is called tide and the one in the evening. called a tidal wave. As a natural phenomenon, tides facilitate human navigation, fishing and salt production. This phenomenon is mainly caused by the tidal force of the Moon and the Sun and the effect of the Earth's rotation. When the tide rises, a large amount of seawater surges forward, with great kinetic energy; at the same time, the water level gradually rises and the kinetic energy is converted into potential energy;
At low tide, sea water rises, the water level gradually falls and potential energy is converted into kinetic energy. The kinetic energy and potential energy possessed by moving seawater are collectedtively called tidal energy. Tide is a renewable energy source with huge reserves, inexhaustible and inexhaustible, which does not require mining or transportation, and is clean and non-polluting. The construction of tidal power plants does not require resettlement, does not flood land, and does not pose any environmental pollution problems. It can also be combined with tidal power generation to develop comprehensive utilization projects such as rehabilitation, aquaculture and marine chemical industry.