Capacity factors at Danish offshore wind farms

Posted by – 2014/07/17

Thanks to the won­der­ful stat­ist­i­cians and data man­agers at ENS and Energinet.DK, we have a large amount of detailed data from Dan­ish onshore and off­shore wind farms. Here’s one quick cut of it: the aver­age capa­city factors, to date of every Dan­ish off­shore wind farm, newly updated to include data to the end of June 2014. The Anholt 1 wind­farm, which only opened in 2013, now has an aver­age capa­city factor of 49.1%.

Dan­ish wind­farms also include the most pro­duct­ive wind tur­bines in the world, at Røn­land I: the tur­bines have been oper­at­ing for over 11 years now, with a life­time capa­city factor of 44.4%; of its eight tur­bines, four are rated at 2.3MW peak power, and each of those four had by the end of June 2014 gen­er­ated 99 GWh — a world record for indi­vidual wind tur­bines.

All num­bers are to the end of June 2014. Ana­lysis by energynumbers.info. Raw data from ens.dk
Latest
rolling
12-month
capa­city
factor
Life
capa­city
factor
Age
(y)
MWp
Total
elec.
gen.
(GWh)
Rolling annual
capa­city factors
(click to enlarge)
Total46.0%40.5%127126 500
Anholt 150.0%49.1% 1.2399.62 136
Avedøre Holme38.1%37.7% 4.010.8142
Fre­derikshavn35.1%30.4%11.17.6225
Horns Rev I47.3%41.8%11.71606 838
Horns Rev II52.2%49.2% 4.8209.34 354
Mid­del­grunden23.6%25.4%13.5401 202
Nys­ted (Rød­sand) I39.1%37.0%11.0165.65 929
Nys­ted (Rød­sand) II44.1%43.8% 4.02073 212
Røn­land I43.1%44.4%11.517.2767
Samsø40.4%39.5%11.423907
Sprogo36.1%35.5% 4.721306
Tunø Knob30.9%30.1%19.15252
Vindeby22.6%23.3%22.84.95231

Cal­cu­la­tion method

The capa­city fig­ures are cal­cu­lated by cal­cu­lat­ing, for each tur­bine in a given wind farm, the num­ber of hours since it was first con­nec­ted to the grid. This is then mul­ti­plied by its capa­city, to give the num­ber of peak-MW-hours. These fig­ures are summed across all tur­bines in a wind farm, and divided into the total energy gen­er­ated by that wind farm, to give its capa­city factor.

Sources

ENS register of Dan­ish wind tur­bines: thanks to ENS and to Energinet.DK for mak­ing the turbine-specific data behind this table available.

4 Comments on Capacity factors at Danish offshore wind farms

  1. Now:: Capa­city factors at Dan­ish off­shore wind farms http://j.mp/hWjeIk #offshorewind

  2. RT @EnergyNumbers: 40%+ capa­city factors at Dan­ish off­shore wind farms http://j.mp/hWjeIk #offshorewind

  3. […] visar på en betydligt högre utnyt­tjande­grad än vad man tid­igare har ant­a­git. Vindkraft­parken Horns Rev 2 hade en kapa­citets­fak­tor på 52 %, vilket är […]

  4. […] capa­city the entire time. See Energy Nos., Capa­city Factors at Dan­ish Off­shore Wind Farms, http://energynumbers.info/capacity-factors-at-danish-offshore-wind-farms (last vis­ited Nov. 18, 2012). Newer European off­shore wind farms can achieve between 44% and 48% […]

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