Meerwind offshore wind farm

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"Meerwind" offshore wind farm
Installation of a Siemens SWT-3.6-120 in the Meerwind wind farm
Installation of a Siemens SWT-3.6-120 in the Meerwind wind farm
location
Meerwind offshore wind farm (Germany)
Meerwind offshore wind farm
Coordinates 54 ° 23 ′ 0 ″  N , 7 ° 41 ′ 0 ″  E Coordinates: 54 ° 23 ′ 0 ″  N , 7 ° 41 ′ 0 ″  E
country Germany
Waters North Sea
Data
Type Offshore wind farm
Primary energy Wind energy
power 288 MW
owner 80% China Three Gorges Corporation
20% Windland Energieproduktion GmbH
operator WindMW GmbH
Project start 2000, construction started in 2012
Start of operations Fall 2014
founding Monopiles
turbine 80 × Siemens SWT-3.6-120
Energy fed in since commissioning 6000 GWh
Website https://www.windmw.de/
was standing 2019
f2

Sea wind south | Ost is an offshore wind farm in the German Exclusive Economic Zone in the North Sea north of the island of Helgoland . Directly to the north is the construction site of the “ Nordsee Ost ” offshore wind farm , with which there is a common safety zone at a distance of 500 meters around the outer structures.

General

Location of Meerwind within the wind farms in the German Bight and their connection to the mainland

Originally the project of today's offshore wind farm consisted of the two neighboring wind farms "Meerwind Süd" and "Meerwind Ost", which have been managed since 2012 by the licensee WindMW GmbH in Bremerhaven as a combined OWP named "Meerwind Süd | Ost".

Both offshore wind farms were originally planned by Windland Energieproduktion GmbH and later by WindMW GmbH . The wind farm covers an area of ​​around 40 km², which is 24 kilometers north-northwest of the island of Helgoland.

Following an application from September 22, 2006, the construction and operation of the wind farm with two 40 wind turbines (WTs) with a nominal output of up to 5 MW each was approved on May 16, 2007 by the Federal Maritime and Hydrographic Agency (BSH) on the basis of the Maritime System Ordinance . Construction began in August 2012.

The wind farm went on-line in trial operation in September 2014. The inauguration took place on November 10, 2014 at a ceremony in Bremerhaven. Full operation should be started by the end of the year. The WindMW operates at its headquarters in Bremerhaven also a control center for controlling equipment. On the island of Helgoland, WindMW operates a service base with factory and storage facilities for the technicians required for operation.

The wind farm owner WindMW GmbH was 80% owned by the US subsidiary Blackstone , the remaining shares by Windland Energieproduktion GmbH . At the end of 2015, Blackstone announced plans to sell. The China Three Gorges Corporation , the large hydropower plants in China operates, in 2016 took over the shares of Blackstone.

construction

Originally, Norddeutsche Seekabelwerke GmbH (NSW) had received an order from WindMW GmbH to supply and install 108 km of medium-voltage submarine cables for cabling the individual wind turbines with the respective transformer platforms of the two wind farms. The cable layer Nostag 10 should be used for the work. Instead, the work was carried out by VSMC.

At the end of July 2012, a 500-meter safety zone was set up around the future locations of the external wind turbines so that construction work on the construction site could begin. The cable end of the HVDC “HelWin 1” was laid by the cable laying unit “Atalanti” on the construction site. In this area, the “HelWin alpha” converter platform was built as an offshore HVDC station at the end of August 2013 .

By April 2013, the 80 monopile foundations had been fetched from Cuxhaven and driven into the construction site. The installation vessels “Zaratan” and “Leviathan” from the British offshore service provider Seajacks were used for this purpose. By April 3, 2014, the wind turbines with the rotors had been installed and the transformer platform set up.

Network connection

Transformer platform Der dicke Malte in Bremerhaven 2014
The connected converter platforms HelWin alpha and HelWin beta

The wind turbines are connected to the transformer platform in the wind farm via medium voltage cables , which transform the three-phase alternating current (three-phase current) from 33  kV to high voltage of 155 kV. The transformer platform with the name Der dicke Malte was manufactured by the steel construction company BVT Bremen of the Heinrich Rönner Group from Bremerhaven . From there, the electricity is fed via a submarine cable connection to the HelWin1 offshore HVDC system operated by the transmission system operator Tennet TSO . The Nordsee Ost offshore wind farm is also connected to the HelWin alpha converter platform . After conversion into direct current, it is transmitted over 130 km (including 85 km of submarine cables and 45 km of underground cables ) to the converter station in the Büttel substation near Büttel (Elbe) .

The HelWin alpha converter platform was supplied by Siemens , installed at the end of August 2013 and completed in mid-2014. With the handover from Siemens to TenneT, the HVDC grid connection HelWin1 went into commercial operation in February 2015.

See also

Web links

Commons : Meerwind  - Collection of images, videos and audio files

Individual evidence

  1. ↑ Cover sheet for nautical chart No. 103 ( memento of July 14, 2014 in the Internet Archive ), in NfS 30/12 of July 27, 2012, BSH , Hamburg / Rostock 2012, ISSN  0027-7444
  2. ↑ Meerwind Süd, Meerwind Ost approval notice. (PDF) Federal Maritime and Hydrographic Agency, May 16, 2007, accessed on January 12, 2020 .
  3. ↑ a b c Holger Paul: Meerwind should supply 360,000 households with electricity , Frankfurter Allgemeine Zeitung , November 10, 2014, accessed on November 10, 2014
  4. ↑ New wind farm in the North Sea . In: North German News from November 11, 2014
  5. ↑ "Meerwind Süd / Ost" in operation · Control of the Bremerhaven turbines - connection to the "HelWin 1" converter station . In: Daily port report of November 11, 2014, p. 4
  6. ↑ Blackstone apparently wants to sell the North Sea wind farm. In: Wirtschaftswoche , accessed on September 6, 2016
  7. ↑ Blackstone (BX) Set to Divest Majority Stake in WindMW , June 14, 2016, accessed September 6, 2016
  8. ^ Frank Binder: The Chinese buy a North Sea wind farm. In: Daily port report from June 15, 2016, p. 16
  9. ↑ Chinese buy German wind farm. In: Handelsblatt . June 13, 2016, accessed January 12, 2020 .
  10. ↑ Cable installation at Meerwind Süd / Ost wind farms completed on time - with a link to a video of the installation work; Retrieved August 5, 2013
  11. ↑ BfS 130/12 of the WSA Tönning of August 30, 2012
  12. ↑ North Sea converter platform successfully installed . In: Schiff & Hafen , issue 10/2013, p. 56
  13. ↑ Anne-Katrin Wehrmann: Rammschall remains a challenge for builders of marine wind farms . In: Hansa , issue 11/2013, p. 21
  14. ↑ Peter Kleinort: "Meerwind" park in the North Sea finished . In: Daily port report of April 8, 2014, p. 4
  15. ↑ Smooth plate for the "thick painting". In: Nordwest-Zeitung . March 11, 2014, accessed July 14, 2017 .
  16. ↑ HelWin1 - grid connection for 128 offshore wind turbines off the coast of Heligoland. Tennet TSO , accessed January 12, 2020 .
  17. ↑ Factsheet: HelWin1 network connection. (PDF) Siemens, February 2015, accessed on May 23, 2020 .
  18. ^ Anne-Katrin Wehrmann: Jack-Ups install the first foundations . In: Hansa , issue 3/2013, pp. 54/55
  19. ↑ Siemens hands over the second North Sea grid connection to TenneT with HelWin1 , Siemens press release , February 9, 2015