 In 1994–1995 the EU-JOULE CENEX project identified over 100 European sites ranging from 2 to 200 km2of sea-bed area, many with power densities above 10 MW/km2.Both the UK Government and the EU have committed themselves to internationally negotiated agreements designed to combat global warming.In order to comply with such agreements, an increase in large-scale electricity generation from renewable resources will be required.