Tidal power generation is two conditions that hydropower stations must meet when using tidal power generation: first, the amplitude of tidal power generation must be large, at least several meters; Second, the coastal topography must be able to store a large amount of seawater and can be used for civil engineering. Tidal power generation is a natural reservoir formed by damming an estuary or bay, and the hydro-generator set is installed in the seawall. When the water level of seawater (or river) rises, the reservoir will store water; When the seawater (or river water) level drops, there will be a certain tidal difference between the reservoir water level and the offshore tidal level, and the seawater (or river water) will drive the hydro-generator set at the outlet of the dam to generate electricity.
It is not recommended to swim in the Yangtze River estuary because of the busy waterway and fast current, which makes it unsafe to swim. Tidal power generation is a renewable energy utilization mode, which can effectively utilize the energy generated by tides and is a relatively environmentally friendly power generation mode. However, tidal power generation needs certain technology and facilities, scientific and reasonable site selection and construction to realize sustainable power generation. Therefore, if we want to develop tidal power generation in the Yangtze estuary, we must carefully evaluate the geographical environment, hydrometeorology and other factors and formulate a scientific and reasonable construction plan.