Capacity factors at Danish offshore wind farms

Posted by – 2014/02/26

monthlygenHere are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of January 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 January 2015. Analysis by Raw data from ens.dkLatest
Rolling annual
capacity factors
(click to enlarge)
Total44.8%41.0%127129 568Total
Anholt 149.2%50.1% 1.8399.63 213Anholt 1
Avedøre Holme37.5%38.3% 4.610.8166Avedøre Holme
Horns Rev I44.6%41.9%12.31607 216Horns Rev I
Horns Rev II49.0%49.2% 5.4209.34 893Horns Rev II
Middelgrunden25.0%25.5%14.1401 260Middelgrunden
Nysted (Rødsand) I38.8%37.2%11.6165.66 275Nysted (Rødsand) I
Nysted (Rødsand) II44.5%44.1% 4.62073 707Nysted (Rødsand) II
Rønland I42.0%44.3%12.117.2805Rønland I
Sprogø34.9%35.6% 5.321345Sprogø
Tunø Knob31.0%30.2%19.75260Tunø 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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