Question: What was the commissioning year of the offshore wind power farm whose country holds the sixth-largest economy in nominal GDP ?

text: Offshore wind power
Largest offshore wind farms
Four offshore wind farms are in the Thames Estuary area : Kentish Flats , Gunfleet Sands , Thanet and London Array . The latter was the largest in the world until September 2018 . See also : List of offshore wind farms and Lists of offshore wind farms by country
Offshore wind power or offshore wind energy is the use of wind farms constructed in bodies of water, usually in the ocean, to harvest wind energy to generate electricity. Higher wind speeds are available offshore compared to on land, so offshore wind powers electricity generation is higher per amount of capacity installed, and NIMBY opposition to construction is usually much weaker. Unlike the typical use of the term offshore in the marine industry, offshore wind power includes inshore water areas such as lakes, fjords and sheltered coastal areas as well as deeper-water areas. Most offshore wind farms employ fixed-foundation wind turbines in relatively shallow water. As of 2020, floating wind turbines for deeper waters are in the early phase of development and deployment. At the end of 2017, the total worldwide offshore wind power capacity was 18.8 gigawatt (GW). All the largest offshore wind farms are currently in northern Europe, especially in the United Kingdom and Germany, which together account for over two-thirds of the total offshore wind power installed worldwide. As of September 2018, the 659 MW Walney Extension in the United Kingdom is the largest offshore wind farm in the world. The Hornsea Wind Farm under construction in the United Kingdom will become the largest when completed, at 1,200 MW. Other projects are in the planning stage, including Dogger Bank in the United Kingdom at 4.8 GW, and Greater Changhua in Taiwan at 2.4 GW. The cost of offshore wind power has historically been higher than that of onshore wind generation, but costs have been decreasing rapidly in recent years to $78/MWh in 2019. Offshore wind power in Europe has been price-competitive with conventional power sources since 2017.
Wind farm Capacity ( MW ) Location Site coordinates Turbines & model Commissioning date
Walney Extension 659 United Kingdom 54°5′17″N 3°44′17″W / 54.08806°N 3.73806°W / 54.08806 ; -3.73806 ( Walney Extension ) 40 x MHI - Vestas 8.25 MW 47 x Siemens Gamesa 7 MW 2018
London Array 630 United Kingdom 51°38′38″N 01°33′13″E / 51.64389°N 1.55361°E / 51.64389 ; 1.55361 ( London Array ) 175 × Siemens SWT-3.6-120 2012
Gemini Wind Farm 600 Netherlands 54°2′10″N 05°57′47″W / 54.03611°N 5.96306°W / 54.03611 ; -5.96306 ( Gemini Wind Farm ) 150 × Siemens SWT-4.0 2017
Beatrice 588 United Kingdom 58°07′48″N 03°04′12″W / 58.13000°N 3.07000°W / 58.13000 ; -3.07000 ( Beatrice Offshore Windfarm Ltd ( BOWL ) project ) 84 × 7MW Siemens Gamesa 2019
Gode Wind ( phases 1+2 ) 582 Germany 54°04′N 7°02′E / 54.067°N 7.033°E / 54.067 ; 7.033 ( Gode Wind I+II ) 97 x Siemens SWT-6.0-154 2017
Gwynt y Môr 576 United Kingdom 53°27′00″N 03°35′00″W / 53.45000°N 3.58333°W / 53.45000 ; -3.58333 ( Gwynt y Môr ) 160 × Siemens SWT-3.6-107 2015
Race Bank 573 United Kingdom 53°16′N 0°50′E / 53.267°N 0.833°E / 53.267 ; 0.833 ( Race Bank ) 91 x Siemens SWT-6.0-154 2018
Greater Gabbard 504 United Kingdom 51°52′48″N 1°56′24″E / 51.88000°N 1.94000°E / 51.88000 ; 1.94000 ( Greater Gabbard wind farm ) 140 × Siemens SWT-3.6-107 2012
Dudgeon 402 United Kingdom 53°14′56″N 1°23′24″E / 53.24889°N 1.39000°E / 53.24889 ; 1.39000 ( Dudgeon Offshore Wind Farm ) 67 × Siemens 6 MW 2017
Veja Mate 402 Germany 54°19′1″N 5°52′15″E / 54.31694°N 5.87083°E / 54.31694 ; 5.87083 ( Veja Mate Wind Farm ) 67 × Siemens SWT-6.0-154 2017
Anholt 400 Denmark 56°36′00″N 11°12′36″E / 56.60000°N 11.21000°E / 56.60000 ; 11.21000 ( Anholt Offshore Wind Farm ) 111 × Siemens SWT-3.6-120 2013
BARD Offshore 1 400 Germany 54°22′0″N 5°59′0″E / 54.36667°N 5.98333°E / 54.36667 ; 5.98333 ( BARD Offshore 1 ) 80 × BARD 5.0MW 2013
Global Tech I [ de ] 400 Germany 54°30′00″N 6°21′30″E / 54.50000°N 6.35833°E / 54.50000 ; 6.35833 ( Global Tech I ) 80 × Areva Multibrid M5000 5.0MW 2015
West of Duddon Sands 389 United Kingdom 53°59′02″N 3°27′50″W / 53.98389°N 3.46389°W / 53.98389 ; -3.46389 ( West of Duddon Sands ) 108 × Siemens SWT-3.6-120 2014
Walney ( phases 1 & 2 ) 367 United Kingdom 54°02′38″N 3°31′19″W / 54.04389°N 3.52194°W / 54.04389 ; -3.52194 ( Walney Wind Farm ) 102 × Siemens SWT-3.6-107 2011 ( phase 1 ) 2012 ( phase 2 )
Wikinger 350 Germany 54°50′2″N 14°4′5″E / 54.83389°N 14.06806°E / 54.83389 ; 14.06806 ( Wikinger Wind Farm ) 70 x Adwen AD 5-135 2018
Nordsee One 332 Germany 53°58′0″N 06°48′00″E / 53.96667°N 6.80000°E / 53.96667 ; 6.80000 ( Nordsee One Wind Farm ) 54 × Senvion 6.2M126 2017
Thorntonbank ( phases 1-3 ) 325 Belgium 51°33′00″N 2°56′00″E / 51.55000°N 2.93333°E / 51.55000 ; 2.93333 ( Thorntonbank phases 1 & 2 & 3 ) 6 × Senvion 5MW 48 × Senvion 6.15MW 2009 ( phase 1 ) 2012 ( phase 2 ) 2013 ( phase 3 )
Sheringham Shoal 315 United Kingdom 53°7′0″N 1°8′0″E / 53.11667°N 1.13333°E / 53.11667 ; 1.13333 ( Sheringham Shoal Offshore Wind Farm ) 88 × Siemens SWT-3.6-107 2012
Borkum Riffgrund 1 [ de ] 312 Germany 53°58′0″N 06°33′00″E / 53.96667°N 6.55000°E / 53.96667 ; 6.55000 ( Borkum Riffgrund 1 Wind Farm ) 78 × Siemens SWT-4.0-120 2015