Advantage of using tidal power . no air pollution tides are predictable low environmental impact all of these

It is also a cheap energy source. After the initial investment is paid off, the cost of generating electricity is very low. Tidal energy has a high energy density, meaning that the tides store a larger amount of energy than most other forms of renewable energy, such as the wind.

but if i have to say a answer i would say low enviromental impact