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Aibel and Keppel FELS have held a strike steel ceremony at Keppel FELS’ shipyard in Singapore to mark the start of construction of the DolWin5 high voltage direct current (HVDC) offshore converter platform. Transmission system operator TenneT selected the Aibel/Keppel FELS consortium to supply the offshore HVDC platform and an onshore converter station for the […]
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DolWin beta, the offshore HVDC platform that will connect three offshore wind farms in the German part of the North Sea, arrived in Haugesund last night, carried by Dockwise’s heavy-lift ship Mighty Servant 1. DolWin beta was built by Dubai Drydocks World, which was subcontracted by Aibel AS. Aibel developed the platform jointly with ABB, main contractor for TenneT’s Dolwin2 project. […]
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Grid Connection, Technology
Alstom and Nordic Yards have installed two 700 MVA power transformers on the DolWin3 converter platform based in the Warnemüde shipyard in Germany, operated by Nordic Yards. The transformers were designed and built by Alstom specifically for the DolWin3 converter project at its Mönchengladbach plant in Germany. During routine inspections, one transformer can continue to […]
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DolWin beta platform sailed out on Aug 1, 2015 from Haugesund, Norway on its way to the German North Sea. It will house the converter station for the DolWin2 HVDC link, of which ABB is in charge. The link will have the capacity to transmit 916 megawatts (MW) of clean power into the German grid. DolWin […]
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Despite delays in converter platform launch, ABB will see DolWin1 wind power connection completed on schedule. Thomas Schmidt, a spokesman at Zurich-based ABB said for Blumberg that he expects the link to be ready for commissioning by the end of the year. Last year, ABB was charged USD 50 million for delays on the DolWin1 […]
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On May 18, the topsides of the DolWin alpha converter platform was loaded out from Heerema’s Zwijndrecht fabrication yard at the Drechthaven, located on the river the Oude Maas. This operation marks the start of a journey that the platform will make via Schiedam to its final offshore destination, the DolWin area in German North […]
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Grid Connection, Wind Farm Update
ABB has commissioned and handed over the DolWin1 offshore wind grid connection to the Dutch-German transmission system operator TenneT. The 800 megawatts (MW) High Voltage Direct Current (HVDC) link connects offshore wind farms around 75 kilometers off the German coast in the DolWin cluster, with the country’s transmission grid. The DolWin1 grid connection can integrate […]
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Italian subsea cable specialist Prysmian has completed the DolWin3 High Voltage Direct Current (HVDC) offshore grid connection project in the German North Sea. Prysmian had secured this project in February 2013, with a contract awarded by Alstom Grid (now GE Grid GmbH) on behalf of the Dutch-German grid operator TenneT. DolWin3, the third offshore grid […]
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Two 685 MVA power transformers have been delivered and installed in the land-based converter station Dörpen West, which is part of the DolWin3 project. The power transformers have been developed, manufactured and tested according to the specific needs of the project at GE’s site in Mönchengladbach. The DolWin3 project, the third network connection in the DolWin wind […]
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Wiking Helikopter Service GmbH has won the contract to provide helicopter services to the installation site DolWin Gamma, an offshore converter station being installed by Nordic Yards GmbH 50 kilometres north of the island of Borkum.
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Business & Finance, Grid Connection, Technology
Sabik, a specialist in sea marking for offshore wind farms, has successfully executed the order for buoyage at the construction site of the DolWin beta converter station. Together with Boskalis Offshore, the company deployed four buoys within less than 24 hours. With the completion of the protected area construction of the converter station DolWin beta can […]
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Business & Finance, Grid Connection
Transmission systems operator TenneT Holding B.V. has issued a new, EUR 500 million Green Bond, bringing its total long-term debt in green format to EUR 3 billion. TenneT launched and priced the 17-year Green Bond issue with a coupon of 1.25% with the support of three banks, Lloyds Bank, Rabobank and Royal Bank of Scotland. The company […]
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ABB, the leading power and automation technology group, has won an order from the Dutch-German transmission system operator, TenneT to provide maintenance services for the DolWin2 link bringing power from offshore wind farms, located in the North Sea, to the mainland German grid. This contract follows ABB’s success earlier this year when it won an […]
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The Federal Maritime and Hydrographic Agency (BSH) has approved the converter platform “DolWin alpha” and the subsea cable system “DolWin1” for connection of “Borkum West II”,” MEG Offshore 1″ and “Borkum Riffgrund 1” wind farms to the grid. The approval covers the installation and operation of the converter platform “DolWin alpha” and the laying […]
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On June 2, 2011, Norddeutsche Seekabelwerke GmbH (NSW) has been awarded a major order by TenneT TSO GmbH (TenneT), a German-based transmission network operator, for the supply and installation of 2 x 13 kilometers of 155 kV AC submarine transmission cables. The cable will provide the network connection of the offshore wind park transformer platform […]
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The DolWin alpha converter platform has been installed in the North Sea. The platform is a crucial part of DolWin1. This offshore direct current grid connection system will have a length of 165 kilometres and a capacity of 800 MW. It is planned to connect three wind farms. The platform was built at Heerema Fabrication […]
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ABB has installed the world’s most powerful offshore converter station in the North Sea, which has a 916 MW power transmission capacity,enough to power more than 1,000,000 households. The offshore converter station is part of the DolWin2 project, which will be operated by transmission system operator TenneT and will connect offshore wind farms in the North […]
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Business & Finance, Environment, Grid Connection, Technology
Multinational energy conglomerate General Electric (GE) is hoping the successful completion of the 900MW DolWin 3 offshore grid connection project will prove a good reference in the company’s future bids for German offshore wind projects, Reuters reports. Germany’s offshore wind sector ”has become very important” to GE, Carlos Haertel, CEO at GE Germany & Austria, was quoted by Reuters […]
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Business & Finance, Grid Connection
Prysmian Group, world leader in the energy and telecom cable systems industry, has been awarded a new major contract worth in excess of € 350 million by Alstom Grid for the connection project DolWin3 linking offshore wind farms in the North Sea to mainland Germany on behalf of the Dutch-German grid operator TenneT. The project […]
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Grid Connection, Technology
ABB has commissioned and delivered the DolWin2 offshore wind transmission link to the Dutch-German transmission system operator TenneT.
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For the connection of the offshore wind farm Borkum Riffgrund 1 with the offshore converter platform DolWin alpha via two parallel 155 kV AC submarine cable systems, Norddeutsche Seekabelwerke GmbH (NSW) has been awarded on November 8, 2011 by TenneT TSO GmbH (TenneT) the order for the supply and installation of 26 kilometers 155 kV […]
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Business & Finance, Grid Connection
Danish infrastructure fund management company, Copenhagen Infrastructure Partners (CIP), and the Dutch company TenneT have agreed to make a joint investment in the DolWin3 offshore grid connection, which will transmit wind energy from the North Sea to German customers. CIP will invest EUR 384 million in the DolWin3 grid connection, whilst TenneT will finance the […]
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DC Netz BorWin5 GmbH is seeking contractors for 2 separate windfarm projects – BorWin5 and DolWin4. BorWin5: System for transmission of electric power (approximately 900 MW) between offshore wind farms in the cluster BorWin and a grid connection point on land. In particular, the transmission power, the losses, the availability and compliance with the Grid […]
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Contracts & Tenders, Grid Connection
TenneT has launched a tender seeking marine geophysical UXO surveys, as well as identification and clearance of cable routes at grid connection projects offshore Germany. The selected company will be responsible for performing all survey, identification and disposal activities, and providing the final route and target clearance certification. The tender is divided into three lots, […]
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Amrumbank MPI Adventure installed the last turbine blade at the Amrumbank West offshore wind farm in early September. The installation work started in February, with the vessels operating in water depths of approximately 25m. Amrumbank West is located approximately 35km north of Helgoland and 37km west of Amrum in the German part of the North Sea. The wind […]
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Contracts & Tenders, Grid Connection, Operations & Maintenance
Ørsted has awarded Semco Maritime with a one-year service contract for programmed preventive maintenance on the two offshore substations at the Borkum Riffgrund 1 and 2 wind farms offshore Germany. Semco Maritime will perform maintenance work on the substations’ LV utilities and fire, safety, and structural systems. The contract also includes upgrades to the helideck […]
