What is Tidal energy?

Answer 1

Tidal energy is the energy produced by utilising the flow of tides in the ocean. tidal energy is the movement of the sea which turns turbines inside a kind of dam which goes across a river
Tidal energy is considered to be a renewable source of energy since it only uses the energy from the changing of the tides instead of burning or consuming any form of energy source. It is also considered to be inexhaustible because tides always rise and fall due to gravity.
Tidal power captures the energy of moving water masses due to tides and uses it to generate renewable electricity. A dam or barrage or underwater turbines are built across the estuary of a river. The river funnels the tides into narrow channels where the speeding water turns the turbines.

Tidal energy is the energy obtained from the movement of tides. If harnessed properly it can produce up to 80% of the world's electricity needs. One type of tidal power station has gates built over estuaries, and the water enters from one side of the gate and while exiting the other gate it passes over a turbine. The potential energy of the water turns the turbines as it flows out and this is used to make electricity. Because it relies on tidal differences and certain geographical requirements, only some places are suitable. This design can cause environmental concern as the aquatic life of the estuary can be harmed by the unnatural rush of tidal waves.

Most projects that I have seen use something similar to a hydro electric dam. The water is channeled as the tide goes out and later as it returns so that it spins turbines to produce electricity.

Another method uses an upright chute anchored on the bottom. As the tide comes in it fills in around the chute finally spilling over its top edge and spinning a turbine inside (near the top). Later, when the tide has gone out valves open in the bottom allowing the contained water to spew out spinning a turbine near the bottom.

Answer 2

Is Energy produced from windwaves and tides.