Capacity factors at Danish offshore wind farms

Posted by – 2016/09/13

monthlygenHere are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of July 2017. The Anholt 1 windfarm, which only opened in 2013, hit an average capacity factor of 46.6% for the full year 2015. 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 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 July 2016. 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)
Total39.8%41.0%127136 348Total
Anholt 144.1%47.2% 3.3399.65 499Anholt 1
Avedøre Holme37.3%38.3% 6.110.8220Avedøre Holme
Frederikshavn29.0%30.6%13.27.6269Frederikshavn
Horns Rev I40.1%41.9%13.81608 081Horns Rev I
Horns Rev II36.7%47.5% 6.9209.36 032Horns Rev II
Middelgrunden24.7%25.4%15.6401 388Middelgrunden
Nysted (Rødsand) I37.5%37.1%13.1165.67 072Nysted (Rødsand) I
Nysted (Rødsand) II42.1%43.8% 6.12074 864Nysted (Rødsand) II
Rønland I42.0%44.2%13.617.2903Rønland I
Samsø35.8%39.2%13.5231 066Samsø
Sprogø30.3%34.7% 6.821432Sprogø
Tunø Knob28.7%30.1%21.25280Tunø Knob
Vindeby 6.5%22.5%24.94.95243Vindeby

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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