Horns Rev 2

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Horns Rev 2
Horns Rev 2 is located in North Sea
Horns Rev 2
Location of Horns Rev 2
Country Denmark
Location Horns Rev, East North Sea
Coordinates 55°36′00″N 7°35′24″E / 55.60000°N 7.59000°E / 55.60000; 7.59000Coordinates: 55°36′00″N 7°35′24″E / 55.60000°N 7.59000°E / 55.60000; 7.59000
Status Operational
Construction began May 2008
Commission date November 2009
Construction cost €448 million[1]
Owner(s) DONG Energy
Wind farm
Type Offshore
Max. water depth 9–17 m (30–56 ft)
Distance from shore 30 km (19 mi)
Hub height 68 m (223 ft)
Rotor diameter 93 m (305 ft)
Rated wind speed 10 m/s (33 ft/s)
Power generation
Units operational 91
Make and model Siemens Wind Power
Nameplate capacity 209 MW
Capacity factor 48.4%[2]
Horns Rev 2's location in relation to the wind farms of the German Bight

Horns Rev 2 is an offshore wind farm located on Horns Rev (Horns Reef) in a shallow area in the eastern North Sea, about 30 km (19 mi) off the westernmost point of Denmark, Blåvands Huk. When inaugurated in 2009, Horns Rev 2 was the largest offshore wind farm in the world until Thanet Wind Farm opened on 23 September 2010.[3][4]


In May 2008, Dong Energy began construction of the second wind farm in the Horns Rev area, Horns Rev 2. Construction was completed in September 2009[5] and was inaugurated on September 17, 2009 by Prince Frederik on the Poseidon accommodation platform.[3] For the year of 2012, HR2 reached a capacity factor of 52.0%.[2]

Technical description[edit]

The Horns Rev 2 consists of 91 Siemens Wind Power SWP 2.3-93 wind turbines with a total generating capacity of 209 MW.[4] The foundations are monopiles like on Horns Rev 1.

Accommodation platform[edit]

It has the first offshore wind farm accommodation platform in the world, named Poseidon. It is connected by walkway to the transformator platform,[6] and is 750 square metres (8,100 sq ft) large with 3 decks and weighs 422 tons. On-site accommodation is more efficient than transporting service personnel by boat 2 hours from Esbjerg harbour 60 kilometres (37 mi) away. Flying people by helicopter to turbines like on Horns Rev 1 is not possible on Horns Rev 2 as the turbines there are not built for it, although the transformator platform has a helipad.[7] Poseidon has 24 rooms of 12 square meters each fitted with TV and internet. There is a gym, kitchen, dining room, laundry room, and a study room.

See also[edit]


  1. ^ "Where the Wind Blows". Nordic Investment Bank. Retrieved 1 December 2011. 
  2. ^ a b "Capacity factors at Danish offshore wind farms", 18 September 2013. Retrieved: 22 October 2013.
  3. ^ a b Matthew McDermott. "Denmark Inaugurates World's Largest Offshore Wind Farm - 209 MW Horns Rev 2" Treehugger
  4. ^ a b Stromsta, Karl-Erik (17 September 2009). "DONG cuts the ribbon at 209MW Horns Rev 2 project". ReCharge (NHST Media Group). (subscription required). Retrieved 19 November 2010. 
  5. ^ James Kanter. Largest Offshore Wind Farm to Go Online Green Inc., 15 September 2009.
  6. ^ Accommodation Platform , DONG Energy. Retrieved February 2010.
  7. ^ Naming Ceremony, DONG Energy. Retrieved February 2010.

External links[edit]