Capacity factors at Danish offshore wind farms

Posted by – 2014/06/26

monthlygenHere are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of May 2015. The Anholt 1 windfarm, which only opened in 2013, hit an average capacity factor of 50.9% for the full year 2014. 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.

Danish windfarms also include the most productive wind turbines in the world, at Rønland I: the turbines have been operating for over 12years now, with a lifetime capacity factor of 44.3%; of its eight turbines, four are rated at 2.3MW peak power, and each of those four had by the end of July 2014 generated over 100 GWh: the first turbines to pass that milestone.

All numbers are to the end of May 2015. Analysis by Raw data from ens.dkLatest
elec. gen.
Rolling annual
capacity factors
(click to enlarge)
Total44.2%41.1%127131 160Total
Anholt 146.2%48.5% 2.2399.63 672Anholt 1
Avedøre Holme40.6%38.6% 4.910.8179Avedøre Holme
Horns Rev I45.4%42.1%12.61607 436Horns Rev I
Horns Rev II50.2%49.5% 5.7209.35 218Horns Rev II
Middelgrunden25.8%25.5%14.4401 289Middelgrunden
Nysted (Rødsand) I38.0%37.2%12.0165.66 453Nysted (Rødsand) I
Nysted (Rødsand) II44.8%44.3% 5.02073 985Nysted (Rødsand) II
Rønland I43.4%44.4%12.417.2828Rønland I
Sprogø35.6%35.7% 5.621368Sprogø
Tunø Knob32.5%30.3%20.05265Tunø Knob

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.


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 #offshorewind

  2. RT @EnergyNumbers: 40%+ capacity factors at Danish offshore wind farms #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, (last visited Nov. 18, 2012). Newer European offshore wind farms can achieve between 44% and 48% […]

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