West Dale Bay near Milford Haven is to get a rather appropriately named Wave Dragon tidal power station.
The floating units are moored to the sea bed but are able to adjust their position to the on-coming wave direction.
Water is channelled into a reservoir above sea level. It is then released through a number of turbines to generate electricity in the same way as hydro-electric power plants work.
Technorati tag: Wave Power, Tidal Power, Wales