Walney offshore wind farm

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"Walney Offshore Wind Farm"
Row of wind turbines (Walney 1)
Row of wind turbines (Walney 1)
location
Walney offshore wind farm (England)
Walney offshore wind farm
Coordinates 54 ° 2 ′ 38 ″  N , 3 ° 31 ′ 19 ″  W Coordinates: 54 ° 2 ′ 38 ″  N , 3 ° 31 ′ 19 ″  W
country United Kingdom
Waters Irish Sea
Data
Type Offshore wind farm
Primary energy Wind energy
power 1026.2 MW (electrical)
owner Walney (UK) Offshore Windfarms Limited
operator Ørsted
Project start 2003
Start of operations 2011, 2012 and 2018
founding Monopile
turbine 51 × Siemens Gamesa SWT-3.6-107
51 × SWT-3.6-120
47 × SWT-7.0-154
40 × MHI Vestas V164
Website walneyextension.co.uk
was standing September 2018
f2

The Walney offshore wind farm is a three-part offshore wind farm in the Irish Sea . A total of 2 × 51  wind turbines from Siemens Gamesa with 3.6  MW each are installed, resulting in a total output of 367.2 MW. This made it the largest offshore wind farm in the world until September 2012, when the Greater Gabbard offshore wind farm was completed. Two further areas with a total of 649 MW started operation in 2018, bringing the total output to a good 1,000 MW.

The Ormonde , Barrow and West of Duddon Sands offshore wind farms are in the immediate vicinity . On February 9, 2012, the first part of the wind farm was officially put into operation by the British Energy and Climate Minister Edward Davey , who had only taken office a few days earlier. On September 6, 2018, the Walney Extension was officially put into operation by Energy Secretary Claire Perry .

General

The wind farm is operated by the project company Walney (UK) Offshore Windfarms Limited , which was founded by Ørsted (formerly: Dong Energy), Scottish and Southern Energy and a consortium from the Dutch pension fund PGGM and Dutch Ampère Equity . Ørsted holds 50.1% of the company, Scottish and Southern Energy 25.1% and the consortium of PGGM and Dutch Ampère Equity 24.8%. The wind farm is located about 15 km west of Barrow-in-Furness at a water depth of 19-24 meters and extends over a total area of ​​73 km². The average wind speed is 9.3 m / s at a height of 80 meters. The forecast standard energy capacity of the first two sub-areas in an average wind year is 1,300  GWh . According to Ørsted, this can supply around 320,000 households.

Walney 1 and 2 ownership structure:

proportion of Shareholders
50.1% Ørsted
25.1% Scottish and Southern Energy
24.8% PGGM (Dutch pension fund ) and Ampère Equity Fund (Dutch equity fund )

Walney Extension's ownership structure:

proportion of Shareholders
50% Ørsted
25% PKA (Danish Pension Fund)
25% PFA (Danish Pension Fund)

technology

Different wind turbines were used in the two equally large sub-fields. While the Siemens Gamesa SWT 3.6-107 was used for Walney 1, the SWT 3.6-120 from the same manufacturer was used for Walney 2, which has a significantly larger rotor. This increases the rotor area from 9000 m² for the SWT 3.6-107 with the same nominal power to 11,300 m² for the SWT 3.6-120, which leads to a higher capacity factor and thus more full-load hours . Due to the longer rotor blades, the hub height of the turbines in Walney 2 has been increased to 90 meters, while in Walney 1 it is 83.5 meters. This results in a total height of the wind turbines of 137 or 150 meters.

The wind turbines are set up in several rows, with the individual turbines spaced between 749 and 958 meters. Monopiles , which were manufactured by Erndtebrücker Eisenwerk GmbH & Co. KG in Rostock and finally rammed around 30 meters deep into the seabed, were used as foundations . The wind turbines come from the Siemens Gamesa plant in Esbjerg , Denmark . Each of the two sub-parks has a 1,100-ton transformer platform on a jacket foundation, in which the electricity from the wind turbines is transformed from the medium-voltage level (34 kV) to the high-voltage level of 132 kV. Then, the current is over two submarine cables to the substations headed ashore. While Walney 1 and the nearby offshore wind farms Ormonde and Barrow are connected to the substation in Heysham , Walney 2 is connected to the newly constructed substation Stanah north of Blackpool . The cable length is 44 or 43 km, plus around 92 km of 34 kV cable for connecting the wind turbines to the transformer platforms.

history

The Walney offshore wind farm is one of the Round 2 projects awarded by the British Department of Commerce and Industry at the end of 2003. After Ørsted had been awarded the contract for Walney, planning for the wind farm began in November 2004. The decision to build it was made in May 2009. In December 2009, Scottish and Southern Energy acquired a 25.1% stake in Ørsted, and PGGM and Dutch Ampère Equity also took over a year later, but Ørsted remained the majority owner and lead manager. After the contracts were awarded, construction began on Walney 1 in early 2010.

Walney 1

The first monopiles were erected by jack-up platform in April 2010, and the first wind turbine was installed in July 2010. At the same time, the transformer platform was installed and the wind turbines wired in the summer. The last turbine of Walney 1 was installed in May 2011, Walney 1 went into operation in July 2011.

Walney 2

Offshore work on Walney 2 began in March 2011, and the first wind turbine was installed in early June 2011. One month later, 18 of the 51 turbines had already been installed. The last turbine was installed at the end of October, and the first wind turbines went online on November 1, 2011. After completing the cabling work, the foundations of the wind turbines had to be secured against scouring with stone weirs . The 51 wind turbines were erected and wired within five months and 13 days, which, according to SSE, means a new speed record for an offshore wind farm.

Walney Extension

In October 2015, the investment decision was made to further expand the wind farm. A total of 87 additional wind turbines with a total output of 659 MW are to be installed in two sub-areas called Walney Extension East and Walney Extension West . Two partial orders were awarded for this. Siemens Gamesa received an order for 47 gearless systems of the type SWT-7.0-154 , with which the eastern of the two fields is to be equipped. The output on this area is 329 MW. MHI Vestas received an order for the delivery of 40 MHI Vestas V164 turbines (each with a power output of 8.25 MW) with a total of 330 MW. Both areas are scheduled to go into operation in 2018. According to the operator Ørsted, the two areas should together form the largest offshore wind farm in the world to date. The first systems supplied electricity for the first time in September 2017. The last wind turbine was installed in April 2018. Commissioning took place in September 2018.

See also

Web links

Individual evidence

  1. ↑ a b c Project Summary Walney 1 and 2. (PDF) Retrieved on September 6, 2018 (English).
  2. ↑ Terry Macalister: Ed Davey throws weight behind green energy by opening giant UK windfarm. In: The Guardian . February 9, 2012, accessed February 18, 2012 .
  3. ^ Adam Vaughan: World's largest offshore windfarm opens off Cumbrian coast. In: The Guardian . September 6, 2018, accessed September 6, 2018 .
  4. ^ Walney wind farm: The project. (No longer available online.) Scottish and Southern Energy Web site, archived from the original on June 19, 2013 ; Retrieved November 13, 2011 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.sse.com
  5. ↑ EEW SPC. (PDF; 2.1 MB) In: Wind-Kraft Journal. 2004, accessed December 11, 2015 .
  6. ↑ Phase 1 of Walney offshore wind farm operational. ( Memento of the original from August 14, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Scottish and Southern Energy press release dated July 11, 2011, accessed November 13, 2011 @1@ 2Template: Webachiv / IABot / www.sse.com
  7. ↑ Turbine Installation Completed at Walney 2. In: breakbulk.com , October 27, 2011, accessed November 14, 2011
  8. ↑ UK. opens world's largest wind farm off the coast of Cumbria. SSE press release, accessed February 18, 2012
  9. ^ Dong's Walney Extension to go ahead. In: Windpower Offshore . October 28, 2015, accessed October 28, 2015 .
  10. ↑ Turbine installation completed at Walney Extension. In: Windpower Offshore . April 25, 2018. Retrieved April 25, 2018 .
  11. ↑ Walney 3 crowned king. In: reNEWS.biz. September 6, 2018, accessed September 6, 2018 .