15. Worldwide examples

15.1 Europe

France's potential is over 120 TWh/year on seven sites totaling 6,000 km ² and 350 km of main dike.

Studies in Great Britain have focused on the exceptional Severn site, and, as in most other countries, have been based on the use of bulb groups. For the reasons explained above, these studies have resulted in a cost well in excess of 100 E/MWh and environmental problems linked to changes in level. The use of large basins open to the sea by means of large tidal turbine channels offers a different approach (figure 11 ). The Severn site could probably be extended to 1,000 km ² ...