A new twist for offshore wind(Economist)
19. May 2008
WINDS sweeping across New England, in the north-east of the United States, blow at an average of about 4 metres per second (m/s). But a few hundred metres offshore they blow more than twice as fast.
This increase in speed is found offshore in much of the world. But although engineers know how to build turbines to turn offshore wind into electricity, they can do that only in waters up to about 40 metres deep. Windturbine towers are pounded deep into the seabed, or anchored in massive blocks of sunken concrete.
Download news in pdf