London Array

From Wikipedia, the free encyclopedia
Jump to: navigation, search
London Array Offshore Wind Farm
London Array is located in England
{{{alt}}}
Location of London Array Offshore Wind Farm
Country England, United Kingdom
Location 7 miles (11 km) off North Foreland, Kent
Coordinates 51°38′38″N 01°33′13″E / 51.64389°N 1.55361°E / 51.64389; 1.55361Coordinates: 51°38′38″N 01°33′13″E / 51.64389°N 1.55361°E / 51.64389; 1.55361
Status Under construction
Construction began March 2011
Commission date End of 2012 (expected)
Construction cost 2.2 billion
Owner(s) DONG Energy (50%)
E.ON UK Renewables (30%)
Masdar (20%)
Developer(s) London Array Limited
Turbine information
Turbines 341 x 3.6MW
Manufacturer(s) Siemens Wind Power
Wind farm information
Distance from shore 7 mi (11.3 km)
Power generation information
Maximum capacity 1,000 MW
As of 8 March 2011

The London Array is an offshore wind farm under construction in the outer Thames Estuary in the United Kingdom. With 1,000 megawatt (MW) capacity, it is expected to become the world's largest offshore wind farm.[1] The site is 17.77 miles (28.60 km) off the North Foreland on the Kent coast in the area of Long Sand and Kentish Knock,[2] and will cover 90 square miles (230 km2) between Margate in Kent and Clacton in Essex. The first foundation was installed in March 2011[3] and phase I is expected to be completed end 2012 at a cost of 2.2 billion and will deliver a capacity of 630MW.

Contents

[edit] Description

The first phase will consist of 175 SWT-3.6 turbines and two offshore substations.[4] All turbines and also offshore substations will be erected on 177 monopiles. In addition, the first stage includes 220 kilometres (140 mi) of 150 kV subsea export cable connecting the offshore substations to the shore and 210 kilometres (130 mi) of 33 kV array cables to link the turbines to each other and to the offshore substations and a new onshore substation near Graveney (near Faversham) on the north Kent coast.[5]

The proposers say the wind farm is enough to power a quarter of the homes in Greater London or the entire counties of Kent and East Sussex, when it's operating within its minimum windspeeds.

[edit] Contractors

Turbines will be supplied by Siemens Wind Power.[4] Their foundations are built by the joint venture between Per Aarsleff and Bilfinger Berger Ingenieurbau. The same company supply and install monopiles.[5] Generators will be installed by MPI and A2SEA by using an installation vessel TIV MPI Adventure and a jack-up barge Sea Worker.[6] Two offshore substations will be designed, fabricated and installed by Future Energy, a joint venture between Fabricom, Iemants and Geosea, while electrical systems and onshore substation work will be undertaken by Siemens Transmission & Distribution. The subsea export cable will supply by Nexans and array cables by JDR Cable Systems. The array cables will be installed by Global Marine Systems and the export cables will be installed by VSMC.[5]

[edit] Developer

Ownership is 50% DONG Energy, 30% E.ON UK Renewables and 20% Masdar.[7] The wind farm was planned to be built by London Array Limited, a consortium of Shell WindEnergy Ltd, E.ON UK Renewables and DONG Energy.[8] In May 2008, Shell announced that it was pulling out of the project.[9] It was announced in July 2008 that E.ON UK and DONG Energy would buy Shell's stake.[10] Subsequently on 16 October 2008, London Array announced the Abu Dhabi-based Masdar would join E.ON as a joint venture party in the scheme. Under the agreement, Masdar purchased 40% of E.ON's half share of the scheme, giving Masdar a 20% stake in the project overall.[11]

[edit] Financial support and timetable

In March 2009, the backers agreed on an initial investment of €2.2 billion.[12] Offshore work was due to start in February 2011 and the proposed completion date for the first stage is in 2012. The second stage (bringing the revised total to 217 turbines) will add enough capacity to generate 1,000 MW for 750,000 homes.[11][13]

Financing of phase 1 have been achieved through the European Investment Bank and Danish Export Credit Fund with £250 million.[7]

[edit] See also

[edit] References

  1. ^ London Array official site
  2. ^ London Array boundary map (PDF)
  3. ^ name=London Array site First foundation March 2011
  4. ^ a b "Siemens to provide 175 wind turbines for the world’s largest offshore wind farm London Array" (Press release). Siemens AG. 2009-05-19. http://www.siemens.com/press/en/pressrelease/?press=/en/pressrelease/2009/renewable_energy/ere200905050.htm. Retrieved 2010-07-14. 
  5. ^ a b c "Trio hand out London Array prizes". Upstream Online (NHST Media Group). http://www.upstreamonline.com/live/article201620.ece. Retrieved 2010-01-01. 
  6. ^ "London Array signs final major installation contracts for phase one" (Press release). London Array. 2010-02-04. http://www.londonarray.com/london-array-signs-final-phase-one/. Retrieved 2010-07-14. 
  7. ^ a b Jensen, Mette Buck. DONG borrows GBP 250mio Ing.dk, 9 June 2010. Retrieved: 9 June 2010.
  8. ^ London Array project introduction
  9. ^ Shell pulls out of key wind power project, Financial Times, 01 May 2008
  10. ^ "E.ON and DONG Energy become 50:50 partners in world’s largest offshore wind farm" (Press release). The London Array. http://www.londonarray.com/category/press-releases/. Retrieved 2008-08-16. 
  11. ^ a b "E.ON and Masdar have joined forces as partners in the London Array offshore wind farm project" (PDF) (Press release). The London Array. http://www.londonarray.com/press/Press_release_16_10_08.pdf. Retrieved 2008-10-16. 
  12. ^ Teather D, "Thames offshore wind farm gets green light from investors", The Guardian, 13 May 2009
  13. ^ UK's London Array Given Green Light

[edit] External links

Personal tools
Namespaces
Variants
Actions
Navigation
Interaction
Toolbox
Print/export
Languages