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Burbo Bank Offshore Wind Farm

Burbo Bank Offshore Wind Farm
File:Pretty flamingos - - 578705.jpg
Location of the Burbo Bank Offshore Wind Farm in Merseyside
Country England, United Kingdom
Location Burbo Flats in Liverpool Bay at the entrance to the River Mersey, Merseyside

53°29′N 03°10′W / 53.483°N 3.167°W / 53.483; -3.167Coordinates: 53°29′N 03°10′W / 53.483°N 3.167°W / 53.483; -3.167{{#coordinates:53|29|N|03|10|W|type:landmark|| |primary |name=

Commission date 2007
Owner(s) DONG Energy
Wind farm
Type Offshore
Max. water depth 0.5-8 m
Power generation
Units operational 25
Make and model Siemens Wind Power SWT-3.6-107
Nameplate capacity 90 MW
Capacity factor ~30%

The Burbo Bank Offshore Wind Farm is a 90 MW offshore wind farm located on the Burbo Flats in Liverpool Bay on the west coast of the UK in the Irish Sea.

The wind farm was developed in the 2000s by SeaScape Energy, which was acquired by Dong Energy in 2005. A 25 turbine installation using Siemens Wind Power 3.6 MW turbines was constructed from 2005, and officially opened in 2007.

In 2009 planning began for a potential ~250 MW extension; Burbo Bank Extension

History and design

Burbo Bank Wind Farm

In September 2002 SeaScape Energy ( Zilkha Renewable Energy, enXco A/S, Wind Prospect Ltd. joint venture.[1]) submitted an application to develop a Round 1 offshore wind farm site.[2] The site, located on Burbo Flats in Liverpool bay (~7 km norwest of Wirral and ~6 km west of the Sefton coastline) was selected due to shallow water depths (0.5 to 8m at low tide), high wind speeds ~Script error: No such module "convert"., and a generally favourable location including proximity to an electrical grid connection. Initial expectations were for a 30 x 3 MW turbine wind farm, with monopile foundations on a site of approximately Script error: No such module "convert".. An electrical connection to the mainland grid was to be made by a seabed cable running southeast to Wirral, followed by a ~3.5 km underground cable to a substation at Wallasey.[3] SeaScape received a capital grant of £10 million in 2003 to aid development of the project.[4]

In 2003 EDF subsidiary enXCo bought the interests of Wind Prospect in the project,[5] the project became a joint venture between Elsam and EDF Energies Nouvelles in 2004 with Elsam taking 50% of the projecty.[6] In September 2005 Siemens Wind Power was selected as the turbine supplier, with 25 3.6 MW turbines ordered at a cost of over €90 million.[7][8] In December 2005 Dong Energy became sole owner of the project.[9]

Construction began in June 2006.[2] Contractor for the foundation installation was MT Højgaard:[10] the foundation design was by Ramboll,[11] Smulders supplied the WTG foundations,[12] turbine towers by Bladt Industries,[13] monopiles and transition pieces were from Sif;[14] piling was done by Menck,[15] with Mammoet Van Oord supplying lifting barge platform Jumping Jack.[2][16][17]

The contractor for the substation was EDF Energy Contracting, cable installation was by McNicholas Construction Services Ltd. (onshore) and Submarine Cable & Pipe (offshore), with cables supplied by ABB Group.[18] Inter turbine and grid connection to the substation was at 33 kV, with voltage step up to 132 kV at the substation for grid connection.[19]

The facility began generating power in July 2007,[2][20] and the wind farm was officially inaugurated on 18 October 2007,[21] and the facility was commercially operational by the end of 2007;[18] the capital cost of developing the wind farm was €181 million.[22]

Between 2008 and 2010, the capacity factor was between 32 to 35%.[23] In 2009 the whole wind farm was put out of action for 4 weeks due to a failure in the underground electrical cable connecting to the National Grid.[24] During summer 2010 Siemens decided to change the blade bearings on all 25 turbines as a pre-emptive measure after corrosion was found in blade bearings found on other sites.[25]

At the end of the windfarm's operational life (25 years) the wind farm will be decommissioned.[26]

Burbo Bank Extension

In 2009 the Crown Estate announced that wind farm operators could apply for extensions to their Round 1 or Round 2 offshore wind farms; Dong Energy identified Burbo Bank as a potential site and began consultation on a ~Script error: No such module "convert". extension westwards of the original wind farm. Between 2009 and 2010 the area of the site was reduced to the north increase clearance from the shipping lanes to the Port of Liverpool; to the south and to the west, reducing potential impact on recreational sailing activities and on certain species of sea bird, and due to potential conflicts with ship anchoring sites; also reducing the visual impact from land. In April 2010 the Crown Estate awarded an area of Script error: No such module "convert". for lease.[27]

The initial cable export route and grid connection identified was one making landfall near to the existing Burbo Bank land connection, and connected to a 275 kV substation in Birkenhead; subsequently a potential grid connection at the 400 kV Deeside substation (near Deeside Power Station, Wales) was identified; and later a connection with landfall at Ffrith Beach, (nr. Prestatyn, Wales) to an extension of the new Bodelwyddan 400 kV substation under construction for the Gwynt y Môr Offshore Wind Farm. In 2011 the developer reached an agreement with the National Grid to use to a connection near the Bodelwyddan substation.[28]

The planned export cable route crossed a number of pre-existing cables and pipelines: a set of pipelines related to the Liverpool Bay oil and gas field, connecting the Douglas Complex to landfall were crossed in the Mid-Hoyle channel[29] the export cable route also ran close to the North Hoyle Offshore Wind Farm export cable;[30] and crossed the 500 MW East–West Interconnector, as well as the planned route of the 2000 MW Western HVDC Link.[31]

Initial expectations were for construction to start in early 2015, and be complete by early 2017, subject to final specifications;[32] neither foundation nor turbine type was specified,[33] an offshore substation to step up the inter turbine voltage (either 33 or 66 kV) to an export voltage of either 132 or 275 kV, connection to the National Grid would be made at 400 kV, stepped up at an onshore substation at Bodelwyddan.[34]

In 2014 Dong Energy announced that the Vestas' V164 8.0 MW turbine was the preferred model for the development,[35] and made preliminary agreements to buy 32 units in Aug 2014.[36] Dong made the decision to proceed with construction of the wind farm in Dec 2014,[37] and the order for 32 turbines was confirmed in December 2014, the first series production of the type.[38] The nacelles are to be produced at the former Odense Steel Shipyard, while the blades are made at Vestas' Isle of Wight facilities. Assembly will take place in Belfast.[39] In Jan 2014 RXPE (Rongxin Power Engineering) was awarded the design and build contract for the Burbo 2 extension Dynamic Reactive Compensation electrical equipment (STATCOM). Other suppliers for the Burbo 2 extension were Bladt Industries (monopiles), Nexans (inter array cabling), and ABB (export cables).[40]

After around 20–25 years of operation the wind farm would be expected to be decommissioned, including removal off all offshore components above seabed level.[41]

See also


  1. ^ Non-Technical Summary (SeaScape Energy, 2002) p.2
  2. ^ a b c d Burbo Bank 1 Offshore Wind Farm (Lorc) Timeline & Track records
  3. ^ Non-Technical Summary (SeaScape Energy, 2002) pp.2-4
  4. ^ "More offshore plant go ahead",, 1 December 2003 
  5. ^ "British consents for four in North Sea",, 1 November 2003, Enxco - a subsidiary of French energy company EdF, bought out the interests of small developer Wind Prospect in their joint development at Burbo Bank 
  6. ^ "Nuclear utility with a wind portfolio",, 1 September 2005, EDF Energies Nouvelles' offshore ambitions are closer to fruition in Britain, where work should start next year on the 90 MW Burbo Offshore plant in Liverpool Bay. The project is being developed by Seascape Energy Ltd, owned jointly by EDF Energies Nouvelles and Danish electricity company Elsam, which bought a 50% stake of the project in 2004 
  7. ^ "Elsam og EDF Energie Nouvelle, køber offshore møller hos Siemens til engelsk projekt" (PDF), Press release (in Danish) (Elsam), 21 September 2005 
  8. ^ "Siemens' first turbine order for UK waters",, 1 October 2005 
  9. ^ Burbo Bank (4C Offshore) Developers/Owners/Operators
  10. ^ "Burbo Bank Offshore Wind Farm",, retrieved April 2014 
  11. ^ "Burbo Bank offshore wind farm",, retrieved April 2014 
  12. ^ "Burbo Project",, retrieved April 2014 
  13. ^ "Arklow Bank & Burbo Bank Offshore Windfarms Towers",, retrieved April 2014 
  14. ^ References - Offshore Wind (PDF), Sif 
  15. ^ "Reference Projects -Burbo Bank",, retrieved April 2014 
  16. ^ de Vries, Eize (1 May 2007), North Sea construction: Installing monopiles for the Dutch Q7 offshore wind farm 
  17. ^ Verrinder, James (1 December 2006), "Wind it on", International Cranes & Specialised Transport 
  18. ^ a b Vestergaard 2007, p. 5.
  19. ^ Burbo Offshore Wind Farm, River Mersey, Liverpool Bay, United Kingdom (
  20. ^ Vestergaard 2007, p. 6.
  21. ^ "Inauguration of DONG Energy’s Burbo Bank offshore wind farm" (Press release). DONG Energy. 18 October 2007. Archived from the original on 7 April 2008. 
  22. ^ Kaiser, Mark J.; Snyder, Brian (2012), Offshore Wind Energy Cost Modeling: Installation and Decommissioning, Springer, Table 8.1, p.138 
  23. ^ UK Renewable Energy Data - Monthly Generation Statistics, April 2002 - March 2010 (PDF) (10), Renewable Energy Foundation, August 2010, pp. 95–96 
  24. ^ Dunn, Justin (16 October 2009), "EXCLUSIVE: Burbo Bank wind farm off Wirral shore out of action for four weeks after cabling failure", 
  25. ^ Godske, Bjørn (24 August 2010), "Korrosion tvinger Siemens til skift af vingelejer i havmøller" [Corrosion forces Siemens to replace bearings in Wind Turbines], (in Danish) 
  26. ^ Non-Technical Summary (SeaScape Energy, 2002) p.4
  27. ^ ( Site Selection and Alternatives (Dong) sec.5.3.3-5.3.14, fig.5.1, 5.2
  28. ^ ( Site Selection and Alternatives (Dong) sec.5.3.15-5.3.30 , fig.5.3, 5.4
  29. ^ ( Other Infrastructure and Licenced Activities (Dong) sec.23.6.13, fig.23.5 Oil and gas infrastructure
  30. ^ ( Other Infrastructure and Licenced Activities (Dong) sec.23.6.21, fig.23.6 Telecommunication and power cables
  31. ^ ( Other Infrastructure and Licenced Activities (Dong) sec.23.6.25-23.6.26, fig.23.6 Telecommunication and power cables
  32. ^ ( Project Description (Dong) sec.6.3
  33. ^ ( Project Description (Dong) sec.6.6, 6.7
  34. ^ ( Project Description (Dong) sec.6.8.3, 6.8.23, 6.10
  35. ^ "Dong Taps Vestas for Burbo Bank Offshore Wind",, 24 February 2014 
  36. ^ Snieckus, Darius (21 August 2014), MHI Vestas 8MW gets Burbo deal 
  37. ^ DONG Energy skal opføre Burbo Bank Extension Havmøllepark i Storbritannien (Press release) (in danish), 19 December 2014 
  38. ^ "Nu starter Vestas produktion af gigantisk havvindmølle", Børsen (in Danish), 22 December 2014 
  39. ^ Bredsdorff, Magnus (22 December 2014), "Nu indleder Vestas serieproduktion af verdens største havmølle", Ingeniøren (in danish) 
  40. ^ "Chinese land Burbo 2 electricals",, 8 January 2015 
  41. ^ ( Project Description (Dong) sec.6.14



External links