Sandbank offshore wind farm

from Wikipedia, the free encyclopedia
"Sandbank" offshore wind farm
Photo-request.svg
Image wanted BW
location
Sandbank offshore wind farm (North Sea)
Sandbank offshore wind farm
Coordinates 55 ° 11 ′ 0 ″  N , 6 ° 51 ′ 0 ″  E Coordinates: 55 ° 11 ′ 0 ″  N , 6 ° 51 ′ 0 ″  E
country Germany
Waters North Sea
Data
Type Offshore wind farm
Primary energy Wind energy
power 288 MW
owner 51% Vattenfall
49% Stadtwerke München
operator DanTysk Sandbank Offshore Wind GmbH & Co. KG
Start of operations 2017
founding Monopiles
turbine 72 × Siemens SWT-4.0-130
was standing 2020
f2
Location of the OWP Sandbank within the wind farm in the German Bight

The offshore wind farm "Sandbank" , first called " Sandbank 24 ", is an offshore wind farm in the German exclusive economic zone of the North Sea .

location

The wind farm is located 90 kilometers west of the island of Sylt and covers an area of ​​59 km² with water depths of around 22 to 38 meters. Due to the curvature of the earth , the wind farm is not visible from land.

history

On July 23, 2001, Sandbank24 GmbH & Co. KG , based in Oldenburg, applied for the construction and operation of 981  wind turbines. With the decision of August 23, 2004, the construction and operation of the wind farm with 80 wind turbines was approved as a pilot phase by the Federal Maritime and Hydrographic Agency (BSH) on the basis of the Marine Plant Ordinance .

With the amendment notice dated December 15, 2011, the deadline for the start of construction work was extended to December 31, 2016.

In November 2011 the rights to the wind farm were sold to Vattenfall . From 2015, 96 wind turbines with a total nominal output of 576 MW should be installed in the first expansion stage. Vattenfall and Stadtwerke München (SWM) then wanted to invest 1.2 billion euros in the meanwhile changed project with 72 Siemens SWT-4.0-130 wind turbines and founded Sandbank Offshore GmbH for this purpose .

EEW Special Pipe Constructions GmbH in Rostock received the order to manufacture the 72 foundations for founding the wind turbines in the form of monopiles . These have a diameter of 6.8 meters and are up to 70 meters long. Production of the monopiles started in December 2014. A total of 52,000 t of steel were used for the 72 pipe structures  . The investment volume is around 1.2 billion euros.

Before the start of the offshore construction work, a 500-meter safety zone was set up around the future locations of the external wind turbines on April 2, 2015, and general shipping is prohibited from entering it. Construction work on the offshore construction site began on July 8, 2015 with pile driving for the first foundation. In mid-2015, the laying of submarine cables for the Innerpark cabling between the wind turbine foundations began. The UK manufactured cables are installed by the Stemat-Spirit cable layer . The installation of the foundations was completed in February 2016. The transformer platform was installed in April 2016. At the end of July 2016, the installation of the wind turbines on the foundations began, and the commissioning work followed immediately. The last wind turbine was erected on January 21, 2017, three months before the originally planned date. At this point, 65 of the 72 wind turbines were already in operation.

The transformer platform , to which the cables from the individual wind turbines lead, was erected in mid-2016 by the crane ship Stanislav Yudin . It consists of a 51-meter-high jacket construction as the foundation and the 20 × 40-meter-high and 20-meter-high transformer station on it with the electrical systems with which the electricity is converted from medium voltage to high voltage.

The official inauguration ceremony took place on July 23, 2017. For this purpose, the wind farm operators organized a public barbecue in Hamburg under the motto “Grill power with wind power”. Commissioning took place three months earlier than originally planned.

technology

72 Siemens SWT-4.0-130 wind turbines are used . Originally, both 6 MW and 3.6 MW turbines were considered.

Network connection

Converter platform SylWin alpha in the Warnow shipyard Warnemünde 2014

The 72 wind turbines are connected via medium voltage cables to the substation SB UW in the wind farm, which transforms the three-phase alternating current (three-phase current) from 33  kV to a high voltage of 155 kV. From there, the electricity is fed to the SylWin1 offshore HVDC system operated by the transmission system operator Tennet TSO via a submarine cable connection . The Butendiek and DanTysk offshore wind farms are also connected to the SylWin alpha converter platform . After conversion into direct current , the transmission takes place over 205 km (160 km of which are submarine cables and 45 km of underground cables ) to the Büttel converter station . The HVDC system called SylWin1 is designed for 864 MW and went into operation in 2015.

See also

Web links

Individual evidence

  1. ↑ Sandbank approval notice. (PDF) Federal Maritime and Hydrographic Agency, 23 August 2004, accessed on 7 April 2020 .
  2. ^ Sandbank notice of amendment. (PDF) Federal Maritime and Hydrographic Agency, December 15, 2011, accessed on April 7, 2020 .
  3. ^ Announcement of the Federal Maritime and Hydrographic Agency . In: NfS 05/12 of February 3, 2012, p. 4.9, BSH, Hamburg / Rostock 2012
  4. ↑ Jörg Schürmeyer: Oldenburgers sell wind farm to Vattenfall. In: Nordwest-Zeitung . November 26, 2011, accessed April 7, 2020 .
  5. ↑ 1.2 billion euros will flow into the new wind farm off Sylt . In: Daily port report from August 12, 2014, p. 1
  6. ↑ Start of construction of foundations for North Sea wind farm. In: Focus Online . December 18, 2014, accessed April 7, 2020 .
  7. ↑ Foundation production for "Sandbank" starts in Rostock . In: Schiff & Hafen , issue 2/2015, p. 48
  8. ^ Announcement of the Federal Maritime and Hydrographic Agency . In: NfS 14/15 of April 2, 2015, part 4, pp. 4.2–4.4, BSH, Hamburg / Rostock 2015
  9. ^ Peter Kleinort: Sylt: Start of construction for "Sandbank" . In: Daily port report of July 9, 2015, p. 16
  10. ↑ Wolfhart Fabarius: First cable for “Sandbank” · “Stemat-Spirit” takes care of transport and laying . In: Daily port report from September 15, 2015, p. 4
  11. ↑ Sandbank and Nordergrund reach intermediate stages . In: Renewable Energies. Das Magazin , May 11, 2016, accessed on May 11, 2016
  12. ↑ Wolfhart Fabarius: First wind turbine for "Sandbank" . In: Daily port report of August 3, 2016, p. 3
  13. ↑ First turbine erected in the Sandbank offshore wind farm . In: IWR , July 29, 2016, accessed July 29, 2016
  14. ↑ Offshore wind farm "Sandbank" feeds in the first electricity . In: Schiff & Hafen , issue 11/2016, p. 47
  15. ^ North Sea wind farm, three months earlier . In: Renewable Energies. Das Magazin , January 23, 2017, accessed on January 23, 2017
  16. ↑ Transformer platform for offshore wind farm "Sandbank" . In: Schiff & Hafen , issue 7/2016, p. 37
  17. ↑ Sandbank offshore wind farm officially goes into operation. iwr.de, July 21, 2017, accessed on July 23, 2017 .
  18. ↑ Sandbank gets the go ahead . In: Windpower Offshore , August 11, 2014, accessed on August 11, 2014
  19. ↑ TenneT: SylWin1. Retrieved April 6, 2020 .