Capacity factors at Danish offshore wind farms

Posted by – 2016/05/19

monthlygenHere are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of April 2017. The Anholt 1 windfarm, which only opened in 2013, hit an average capacity factor of 46.6% for the full year 2015. 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 44.4%; 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 April 2016. Analysis by Raw data from ens.dkLatest
elec. gen.
Rolling annual
capacity factors
(click to enlarge)
Total42.5%41.3%127135 457Total
Anholt 147.9%48.1% 3.1399.65 190Anholt 1
Avedøre Holme40.8%38.9% 5.810.8214Avedøre Holme
Horns Rev I41.9%42.0%13.51607 969Horns Rev I
Horns Rev II39.4%47.9% 6.7209.35 856Horns Rev II
Middelgrunden26.7%25.6%15.4401 375Middelgrunden
Nysted (Rødsand) I38.9%37.3%12.9165.66 975Nysted (Rødsand) I
Nysted (Rødsand) II44.3%44.3% 5.92074 727Nysted (Rødsand) II
Rønland I45.8%44.4%13.317.2891Rønland I
Samsø39.7%39.5%13.2231 054Samsø
Sprogø31.8%35.1% 6.521421Sprogø
Tunø Knob30.7%30.3%20.95278Tunø Knob
Vindeby 9.5%22.7%24.74.95243Vindeby

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.

7 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

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