Germany’s offshore wind farms delivered some 8.48 terrawatt-hours (TWh) of electricity to the grid in the first six months of the year, according to Deutsche Windguard figures.
Offshore wind has already produced more electricity in 2017 than in the whole of 2015 (8.29TWh) and 70% of the 12.37TWh generated in 2016.
A total of 108 turbines with a cumulative capacity of 626MW have come online in the first half of 2017.
Approximately 295MW were installed by the end of the second quarter, but have yet to feed power to the grid.
About 900MW of new offshore capacity is expected to be added in 2017, according to industry groups Foundation Offshore Wind Energy, VDMA Power Systems, WAB and others.
A total of 1055 turbines were online in German waters by 30 June.