Netherlands-based transmission system operator TenneT has launched tendering procedures for building three offshore grid connections, with 2GW of total capacity, in the North Sea.
The company plans to award the contracts for the BalWin1, BalWin2 and BalWin3 connections, located offshore from Lower Saxony, in the third quarter of next year.
The offshore grid connections are part of TenneT’s 2GW Program initiative, which seeks to expedite Europe’s energy transition.
They are claimed to offer more than twice as much transmission capacity as the 900MW systems that have been commonly used in Germany to date.
TenneT said that this infrastructure will transmit the same amount of energy with half as many grid connections, helping to conserve resources and minimise impacts on the environment.
TenneT chief operating officer Tim Meyerjürgens said: “The 2GW Program will be a key pillar of our offshore strategy while helping to advance the energy transition in Europe more quickly and efficiently.
“After a successful launch in the Netherlands and with the call for tenders for the converter stations of our BalWin projects, we are now also putting grid expansion in the German North Sea on course for climate neutrality.”
The three projects in the German North Sea will have the capacity to supply clean energy to 7.5 million households in total.
BalWin1 is expected to be completed in 2029, while BalWin2 and BalWin3 are due to be ready for operations the following year.
TenneT also plans to build three more projects, with 6GW of combined capacity, offshore from the Netherlands.
Last week, the company commissioned an international consortium to build sea and land converter stations for BorWin6, a 235km grid connection system of offshore wind farms in the German North Sea.
The BorWin6 system has a total transmission capacity of 980MW and is expected to be commissioned in 2027.