Capacity factors at Danish offshore wind farms

Posted by – 2014/11/20

Here are the average capacity factors of every Danish offshore wind farm, newly updated to include data to the end of November 2014. The Anholt 1 windfarm, which only opened in 2013, hit an average capacity factor of 51.5% for the last 12 months. 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 11 years now, with a lifetime capacity factor of 44.2%; 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 November 2014. 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)
Total46.7%40.5%127128 445Total
Anholt 151.5%48.7% 1.7399.62 834Anholt 1
Avedøre Holme39.3%37.7% 4.410.8157Avedøre Holme
Frederikshavn37.2%30.5%11.57.6234Frederikshavn
Horns Rev I47.9%41.8%12.11607 084Horns Rev I
Horns Rev II52.1%48.9% 5.3209.34 703Horns Rev II
Middelgrunden26.4%25.4%13.9401 239Middelgrunden
Nysted (Rødsand) I39.4%36.9%11.5165.66 133Nysted (Rødsand) I
Nysted (Rødsand) II44.7%43.4% 4.52073 512Nysted (Rødsand) II
Rønland I43.9%44.2%11.917.2792Rønland I
Samsø40.0%39.3%11.823936Samsø
Sprogø36.6%35.2% 5.121330Sprogø
Tunø Knob33.2%30.1%19.55257Tunø Knob
Vindeby22.1%23.2%23.34.95234Vindeby

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.

Sources

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 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% […]

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