How does a tidal generator produce electricity? ?

Question

Thank you

Answer 1

Just like a hydroelectric dam does - but there are sluice gates to let the tide raise the water level between the different sides of the dam.

See:

http://en.wikipedia.org/wiki/Tidal_barra...

See also (plant operational since the 1960s):

http://en.wikipedia.org/wiki/Rance_tidal...

Note: There are other designs that look like propellors underwater - these utilise tidal currents - a different technology/energy source.

Answer 2

Good morning Skycat

The principle of tidal power generation is that the force of the incoming or outgoing tide flows over a propeller causing it to turn. This spins a shaft that is connected to a generator which  generates electricity.

Although not widely used yet, tidal power has potential for future electricity generation. Tides are more predictable than wind energy and solar power.

The tidal motion of water offers an amazing source of energy - it's immensely powerful, reliable and can be harvested with no emissions and very little impact on the environment!

Have a great day!