TenneT delivered 7.4TWh of electricity from offshore wind farms located in the German North Sea to the grid, an almost six-fold increase compared with 2014.
The transmission operator said offshore wind farms in the German North Sea accounted for about 9.6% of Germany’s overall wind energy generation of 77TWh.
TenneT said 2631MW fed into the grid on 11 November last year, with the average feed-in amount ranging from 325MW in January to 1773MW in December.
TenneT executive Lex Hartman said: “In the first half of 2015, we boosted our offshore grid connection capacity from 575MW to 4.3GW.”
He said that grid capacity now far exceeds the 3GW of offshore wind generation installed by the end of last year.
But, he warned, because HVDC links connecting northern to southern Germany are not being built on time, offshore wind power will need to be curtailed more often.
Availability of offshore power was 93% in 2015, the TSO said. Some 0.65TWh could not be transmitted due to outages caused by TenneT installations, while the unavailability of wind farms resulted in a potential 1.27TWh not been produced.
Image: TenneT increased offshore capacity in German North Sea to 4.3GW last year (TenneT)


