ABB has won an order worth approximately $700 million from the German transmission grid operator transpower to supply an 800 MW power link that will connect more offshore wind farms in the DolWin1cluster – located in the North Sea – to the mainland German grid.
ABB will deploy its high-voltage direct current (HVDC) light transmission technology to transmit power from the 400 MW Borkum West II wind farm and other wind farms to be developed nearby. The wind farms will be connected to an offshore HVDC converter station, which will transmit electricity to the onshore HVDC station at Dorpen, on the northwest coast of Germany, via 165 km of underwater and underground DC cables. The Dorpen/West converter station will, in turn, feed AC power to the mainland grid.
ABB will be responsible for system engineering, including design, supply and installation of the offshore platform, and the offshore and onshore converter stations. The company will also supply and install the sea and land cable systems.
The network of offshore wind farms is expected be operational by 2013.