Capacity factors at Danish offshore wind farms

Posted by – 2017/03/27

monthlygenHere are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of Feb 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 February 2017. Analysis by EnergyNumbers.info. Raw data from ens.dkLatest
rolling
12-month
capacity
factor
Life
capacity
factor
Age
(y)
Installed
capacity
(MWp)
Total
elec. gen.
(GWh)
Rolling annual
capacity factors
(click to enlarge)
Total41.6%41.4%127139 414Total
Anholt 147.8%48.5% 3.9399.66 640Anholt 1
Avedøre Holme32.9%38.2% 6.710.8240Avedøre Holme
Frederikshavn28.4%30.6%13.87.6281Frederikshavn
Horns Rev I40.7%42.0%14.41608 449Horns Rev I
Horns Rev II47.7%48.0% 7.5209.36 593Horns Rev II
Middelgrunden23.8%25.5%16.2401 446Middelgrunden
Nysted (Rødsand) I32.9%37.1%13.7165.67 383Nysted (Rødsand) I
Nysted (Rødsand) II38.4%43.7% 6.72075 321Nysted (Rødsand) II
Rønland I44.4%44.5%14.117.2947Rønland I
Samsø33.6%39.2%14.1231 112Samsø
Sprogø29.6%34.6% 7.321467Sprogø
Tunø Knob29.1%30.3%21.85289Tunø Knob
Vindeby 6.9%22.2%25.54.95245Vindeby

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.

Sources

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 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% […]

  5. […] voor elke individuele Deense windturbine wordt per maand gepubliceerd. Een interessante blog op basis van die gegevens laat zien dat de productiefactor van de nieuwste Deense windparken door […]

  6. […] hier niet of nauwelijks. Om die bewering te staven: er zijn al bestaande windparken in Engeland en Denemarken met een oppervlak in de orde van 100 à 200 vierkante kilometer, waar van de door Miller […]

  7. […] However, it’s hard to separate out variations in wind availability over the years from any operational degradation and technical/operational improvements. Danish offshore load factors from 1980 to 2011 mostly seem to indicate continual improvement: http://energynumbers.info/capacity-factors-at-danish-offshore-wind-farms […]

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