Search results for: Alpha platform

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26 January 2012

The Borwin Alpha platform is the first offshore installation designed to convert AC power into high voltage direct current (HVDC) for onward transmission. Built and designed by the Heerema Fabrication Group on behalf of ABB, the facility can transfer a power of 400MW at a bipolar voltage of 150kV. The converted current is carried by […]

14 July 2014 Grid Connection

Under the direction of Seaway Heavy Lifting, one of the world's largest converter platforms has been installed off Sylt, an East Frisian Island. SylWin alpha platform, built by Siemens, is so large and heavy that the ingenious "float-over method" has been used to lift it from a pontoon onto the already installed jacket base. This approach has been used successfully in […]

20 January 2014 Operations & Maintenance

KOTUG Offshore chartered the tugs AHT ISA and AHT Meander for anchor handling and towage operations of the platform JB118 from the Borwin Alpha Site to the port of Rotterdam. On January 13th, 2014 both tugs started with anchor handling operations on location. Given the unfavorable weather conditions, the tow passed Eemshaven. On January 20th […]

26 August 2013 Grid Connection, Wind Farm Update

The centerpiece for the transport of wind power to be produced by Windreich’s offshore wind farm MEG 1 has been successfully constructed. "With the construction of the transformer platform ‘DolWin alpha’, 13 kilometers southeast from Windreich’s  MEG 1 wind farm, we have taken a big step forward with the planned construction of the wind farm," […]

20 May 2013 Grid Connection

The load out of DolWin alpha marks the start of a journey that the platform will make to its final offshore destination, the DolWin area in German North Sea. This operation was performed at the Heerema's Zwijndrecht fabrication yard at the Drechthaven. The following is a video of the load out of DolWin alpha: [mappress] […]

20 May 2013 Grid Connection

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 […]

4 November 2011 Technology

Nordic Yards, manufacturer of technologically sophisticated and innovative special ships and maritime structures, brings the HelWin alpha offshore platform to dock at its Wismar yard. The self-erecting transformer platform is being built for Siemens Energy in separate sections at Wismar and Warnemünde. The HelWin alpha is almost identical in design to the BorWin beta offshore […]

24 May 2011

  Nordic Yards, manufacturer of technologically sophisticated and innovative special ships and maritime structures, starts construction of the second offshore transformer platform for Siemens Energy today at its Wismar yard. The HelWin alpha platform will be built in separate sections at Wismar and Warnemünde and provide work for up to 450 employees over the course […]

27 June 2019 Grid Connection

Petrofac and TenneT have confirmed the award of the contract to build the Hollandse Kust Zuid (HKZ) offshore grid connection Beta HVAC substation in the Dutch North Sea. This follows the award of the contract for HKZ platform Alpha in July 2018 and subsequent confirmation of HKZ platform Beta option. A total of eight 700MW […]

13 May 2019 Grid Connection

The second cable that will connect the Borssele Alpha offshore high voltage substation in the Dutch North Sea to the transformer station at Borssele has made landfall, according to TenneT. Boskalis Subsea Cables & Flexibles, former VBMS, and NKT are in charge of supplying, delivering and installing two 61km long export cables for the Borssele Alpha […]

10 May 2019 Grid Connection

The topside for the Borssele Alpha substation has departed from HSM Offshore in Schiedam towards the project site in the Dutch North Sea. The topside will travel through the Nieuwe Waterweg and Hoek van Holland where it will enter the North Sea. Upon arrival to the project site, it will be placed onto its jacket foundation, […]

9 May 2019 Grid Connection

The topside for the Borssele Alpha substation will set sail from HSM Offshore towards the project site on Friday, 10 May, according to TenneT. The topside will begin its journey from HSM Offshore's site in Schiedam at around 7:30 a.m. local time and will travel via the Nieuwe Waterweg and Hoek van Holland where it will […]

30 April 2019 Grid Connection, Wind Farm Update

HSM Offshore has loaded out the Borssele Alpha substation topside onto a barge at its yard in Schiedam, the Netherlands. The 700MW Borssele Alpha will collect the electricity generated by Ørsted’s Borssele 1 + 2 offshore wind farm and feed it into the Dutch grid. The substation's jacket foundation was installed in August 2018. The platform […]

29 April 2019 Grid Connection

Rhenus Offshore Logistics has completed the first supply trip to the Borssele Alpha offshore high voltage substation in the Dutch North Sea. Rhenus, which completed the first trip on 23 April, is providing all logistics services that are required for the project, including the supply trips, handling at the port, customs clearance and waste disposal. The […]

15 April 2019 Grid Connection

The first cable that will connect the Borssele Alpha offshore high voltage substation in the Dutch North Sea to the transformer station at Borssele has made landfall, TenneT said. On Friday, 12 April, Boskalis started to pull in the sea cable on land and early Saturday morning the cable reached the newly built transformer station. […]

14 September 2018 Contracts & Tenders, Grid Connection

Dutch offshore grid operator TenneT TSO B.V. has issued a call for competition for the construction, transport and installation of an offshore platform for a Hollandse Kust offshore wind zone.

5 September 2018 Grid Connection, Operations & Maintenance

Siemens Offshore Grid Access Service has performed subsea and drone inspections for TenneT TSO at six offshore converter platforms in the German North Sea.

30 July 2018 Grid Connection, Ports & Logistics, Wind Farm Update

HSM Offshore has loaded out onto a barge the jacket foundation for the Borssele Alpha offshore transformer station at its yard in Schiedam, the Netherlands.

28 June 2018 Contracts & Tenders, Grid Connection, Operations & Maintenance

A consortium of SeaRenergy and N-Sea has won a contract by TenneT for modification works to the jacket foundation of the HVDC platform DolWin alpha.

11 June 2018 Operations & Maintenance, Technology, Wind Farm Update

B.offshore GmbH has completed maintenance work on the offshore substation of the Alpha Ventus offshore wind farm in Germany.

2 November 2017 Grid Connection, Operations & Maintenance

Dutch offshore inspection services provider, Bluestream Offshore, has carried out extensive inspection work on three TenneT's HVDC platforms in the German sector of the North Sea: BorWin Alpha, DolWin Alpha and DolWin Beta.

20 September 2017 Grid Connection, Operations & Maintenance

NDE Offshore has completed the structural and subsea inspections on Siemens HVDC platforms in Germany, owned by TenneT.

1 September 2017 Grid Connection

Dutch transmission system operator TenneT TSO B.V. and the Schiedam-based HSM Offshore have cut the first steel for the Borssele Alpha offshore transformer station and have signed a contract for the construction of the Borssele Beta platform.

12 May 2017 Contracts & Tenders, Grid Connection, Wind Farm Update

TenneT has launched a qualification process for candidates interested in tendering for the delivery of offshore platforms that will connect wind farms at Hollandse Kust Zuid and Hollandse Kust Noord offshore areas to the Dutch grid on the mainland.

20 April 2017 Grid Connection, Operations & Maintenance

Offshore service provider NDE Offshore has started annual inspections of the helideck substructures on three HVDC platforms in the German North Sea for Siemens Transmission.

18 May 2016 Grid Connection

PFISTERER, an energy transmission and distribution specialist, has started the onshore work for equipping the DolWin gamma converter station.  The 900MW DolWin gamma converter platform is currently being constructed as the third link within the DolWin wind farm cluster. PFISTERER is in charge of laying all high-voltage and medium-voltage cables, both within the platform and over the […]