Transmission system operator TenneT has started laying the German subsea section of the 1.4GW NordLink interconnector between Germany and Norway.
The TSO will install 99km of cable from landfall at the Busum dike in Schleswig-Holstein and southwest of the Island of Sylt through the Wadden Sea tidal flat area.
A further 55km will be laid in the German offshore area up to the border of the Danish territorial waters next year to connect with a 228km section to be installed this year and next.
The 134km subsea section in Norwegian waters is already complete, with completion of a 53-km onshore overhead line on Norway's mainland is scheduled for completion in 2019.
On the German mainland, a 54km section will be installed underground next year between Busum dike and the Wilster converter station.
NordLink is a 50:50 joint venture between Norwegian transmission system operator Statnett and DC Nordseekabel, which is equally owned by TenneT and the German development bank KfW.
It will enable the exchange of German wind energy and Norwegian hydropower.