Capacity factors at Danish offshore wind farms

Posted by – 2017/02/24

monthlygenHere are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of Jan 2017. The Anholt 1 windfarm, which only opened in 2013, hit an average capacity factor of 47.4% for the full year 2016. Compare these with the capacity factors for UKoffshore wind farms. 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 14 years now, with a lifetime capacity factor of 44.5%; 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 2017. Analysis by Raw data from ens.dkLatest
elec. gen.
Rolling annual
capacity factors
(click to enlarge)
Total40.8%41.2%127138 898Total
Anholt 147.0%48.2% 3.8399.66 465Anholt 1
Avedøre Holme32.6%38.0% 6.610.8237Avedøre Holme
Horns Rev I39.8%41.9%14.31608 384Horns Rev I
Horns Rev II46.2%47.7% 7.4209.36 492Horns Rev II
Middelgrunden23.0%25.4%16.1401 436Middelgrunden
Nysted (Rødsand) I32.8%37.0%13.6165.67 327Nysted (Rødsand) I
Nysted (Rødsand) II38.2%43.6% 6.62075 242Nysted (Rødsand) II
Rønland I43.8%44.4%14.117.2940Rønland I
Samsø32.4%39.1%14.0231 103Samsø
Sprogø29.0%34.6% 7.321462Sprogø
Tunø Knob28.0%30.2%21.75287Tunø Knob
Vindeby 3.5%22.1%25.44.95244Vindeby

Calculation method

Just as with the UK offshore windfarm capacity factors, these capacity factors 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. This post gets updated as new data becomes 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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