Offshore wind turbine test site in Cuxhaven
| Offshore wind turbine test site in Cuxhaven | |||
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| location | |||
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| Coordinates | 53 ° 50 ′ 32 " N , 8 ° 45 ′ 31" E | ||
| country | Federal Republic of Germany | ||
| Data | |||
| Type | Onshore wind farm | ||
| Primary energy | Wind energy | ||
| power | 25.6 MW (electric) | ||
| owner | DEWI OCC GmbH Windpark Cuxhaven GmbH EWE AG |
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| Start of operations | 2005 | ||
| Shutdown | 2013 | ||
| turbine | 1 × Enercon E-112 2 × REpower 5M 1 × DeWind D8.2 1 × Enercon E-126 |
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| was standing | February 2015 | ||
The offshore wind turbine test site in Cuxhaven was a wind farm near Cuxhaven in Lower Saxony . It was built in 2005 as a test field for offshore wind turbines in the area of the Altenbruch and Groden districts directly on the Elbe . Due to the expansion of the local offshore base in Cuxhaven , a port and industrial site, the wind turbines were dismantled in 2013, four of which were rebuilt in a new wind farm 30 km further south between Hymendorf and Neuenwalde in what is now the city of Geestland .
technology
The test field consisted of a total of up to five wind turbines. One copy of each of the types ( nominal output in brackets) Enercon E-112 (6 MW), DeWind D8.2 (2 MW), Enercon E-126 (6 MW) and two types of REpower 5M (5 MW) were built. Only the latter were turbine types actually designed for offshore use.
The second REpower 5M was equipped with a helicopter deck and an emergency room as well as other facilities as in "real" offshore use. The example of the Enercon E-112 was actually supposed to be erected as a nearshore installation in the Inner Jade in front of the Hooksieler Binnentief , before the final location was chosen due to problems with laying the foundation.
history
In July 2003, DEWI-Offshore and Certification Center GmbH (DEWI-OCC) was founded as a subsidiary of the German Wind Energy Institute (DEWI), which has existed since 1990, together with the city and district of Cuxhaven. The purpose was the certification of onshore and offshore wind turbines and their components.
The DEWI-OCC test field was planned directly in front of the sea dike near Cuxhaven, with locations for five systems planned. One of these locations was initially canceled due to the expansion of the Cuxhaven port. The foundation work in the test field could begin in August 2005 after the road and a bridge required for development had been completed. Initially four plants were built. EWE AG and Plambeck Neue Energien AG , Energi E2 , as well as the consortium Energy Wind Converter GmbH ( E.ON Energy Projects GmbH , Winkra Energy GmbH) were awarded the contract from thirteen interested parties . By 2007 all wind turbines had been installed.
As early as 2010, the decision to dismantle and relocate the test field was made, as the companies located there developed much faster than was thought in 2003 when the offshore master plan was announced. It was displaced by the further settlement of industrial companies from the offshore wind energy sector with the offshore terminals I and II to be built, the construction of an offshore heavy-duty platform and the development of large contiguous commercial and industrial areas for which the test field area was required. A joint working group was then set up by the state of Lower Saxony, the city and district of Cuxhaven and the port and wind farm operators. A site near Hymendorf , a district of Langen in the district of Cuxhaven, was selected as the new location for four of the five systems .
Dismantling and transport of the systems
All five wind turbines located in the offshore wind turbine test site in Cuxhaven were directly affected by the relocation. The following four systems were relocated:
- At location 2 around a 6 MW Enercon E-126 turbine with a hub height of 116 m,
- at location 3 around a 6 MW Enercon E-112 turbine with a hub height of 123 m,
- at locations 4 and 5 by a 5 MW REpower 5M system with a hub height of 117 m,
The “DeWind D 8.2” system located on site 1 and furthest to the west could be accommodated in another wind farm in Cuxhaven.
The limited size of the replacement area at Hymendorf in connection with the requirements of the wind turbine manufacturers for compliance with minimum distances as well as the demand of the German armed forces for free corridors to minimize the impairment of the radar systems on the nearby Nordholz air base led to the fact that in addition to the former locations 2 -5 For the plants to be relocated, only one additional location for a large plant (6 MW class) and two smaller locations for plants of the 3 MW class could be created as a replacement.
Dismantling of the first REpower 5M began on the morning of August 21, 2013 in Cuxhaven-Groden. As a result, all four wind turbines were switched off, shut down, dismantled one after the other, transported with special low-loaders and rebuilt at the new location in boggy subsoil.
The two concrete towers of the Enercon E-126 could not be relocated. The two towers of the REpower 5M were dismantled, cleaned, relocated and rebuilt on the new site. After the dismantling, the wings and the tower components were initially stored temporarily on the premises or in the hall of the Cuxhaven Steel Construction (CSC), in order to be transported to Langen-Neuenwalde mostly at night by means of special transporters.
Since the city of Cuxhaven cannot operate a private wind farm 30 km outside of its municipal area due to local regulatory reasons, the four wind turbine operators acquired the site in succession. The sale took effect on January 1, 2016.
See also
- List of wind turbines in Bremen, Hamburg and Lower Saxony
- History of wind energy use
- West coast wind farm - first wind farm in Germany in Kaiser-Wilhelm-Koog (built in 1987)
- Vogelsberg wind energy park - first German wind park in the low mountain range in the municipality of Grebenhain (built in 1990/91)
- Jade wind farm - test field for onshore wind turbines near Wilhelmshaven (built in 1989)
Individual evidence
- ↑ REpower Systems AG: Press release from December 5, 2005
- ^ Enercon GmbH: Press release from March 15, 2005
- ↑ a b c d DEWI magazine No. 27, August 2005 (PDF; 222 kB)
- ↑ Cuxhavener Nachrichten of May 18, 2014: Relocation was unique in the world. Retrieved February 22, 2015 .
- ^ Cuxhavener Nachrichten of February 7, 2013: New foundations are being prepared. Retrieved February 22, 2015 .
