Zhoushan, Zhejiang.
Tidal energy has the advantages of huge reserves, clean and pollution-free, and does not occupy land. Its production units can withstand magnitude 16 typhoons and 4 meter waves. is known as the "blue oil field", is an ideal renewable energy source.
LHD Lindong Large-Scale Tidal Power Station, located on Xiushan Island, Zhoushan, is the world's first ocean tidal power station and the world's longest tidal power generation project which has been permanently connected to the electricity grid and has been operating for the longest time.
The “Endeavor” unit put into the sea this time is the fourth-generation single-megawatt unit of the LHD Lindong tidal power station. The unit has a total weight of 325 tonnes, a rated power of 1.6 megawatts and a planned annual power generation capacity of 2 millionkilowatt hours. It is expected to reduce carbon dioxide emissions by 1,994 tonnes per year.
Principle of seawater tidal power plant:
The energy possessed by moving seawater becomes tidal energy. Tidal power generation involves building a dam in a tidal bay or estuary to form a reservoir and placing a hydroelectric generator in or adjacent to the dam. It uses the rise and fall of sea water level as the tide rises and falls. drive the water wheel when sea water passes through the turbine. Generators produce electricity.
Due to the force of the tides, sea water continually rises and falls. When the tide rises, a large amount of sea water surges forward, with large 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 recedes, the water level gradually drops, and potential energy is converted into kinetic energy. The kinetic energy and potential energy possessed by moving seawater are collectively called tidal energy.
One of the important applications of tidal energy is electricity generation. From an energy point of view, it uses the potential energy and kinetic energy of seawater to convert it into electrical energy using a hydroelectric generator. The advantage of tidal power generation is its low cost. The cost of a kilowatt hour of electricity is only one eighth of that of a thermal power plant.
Reference for the above content: Information for the public-Zhejiang Zhoushan: Start-up of the world's largest single-capacity tidal power generation unit