This invention relates to a tidal power plant including a delta formation of power generating facility. This tidal power plant divides sea water into three parts, a low level reservoir and a high level reservoir and the sea. As the power is generated, water flow from the high level reservoir to the control gate via a turbine. The control gate has two positions. In one position water flows from the turbine to the low level reservoir and, in the other position, to the high level reservoir. This tidal power generating facility is in a type of water-electricity or water-machine.
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