In the tendering procedure for the contract to build the longest offshore grid connection system, BorWin5, with 143 miles, TenneT has awarded the contracts for the onshore and offshore converter stations to the consortium Siemens AG/Dragados Offshore S.A.
BorWin5 is the 15th offshore grid connection system to be realised by TenneT in the German North Sea and also the twelfth direct current connection, the company said in the press release.
BorWin5 is also the second project after DolWin5 in which the wind turbines are directly connected to the offshore platform BorWin epsilon via 66-kilovolt three-phase power cables. This eliminates the transformer stations that were previously required in every wind farm.
The connection will use 143-mile-long extra-high-voltage direct current cable to transmit electricity to the Garrel/East converter station on land after conversion using low-loss direct current technology.
