Alstom, Nordic Yards win DolWin3 work

Transmission system operator TenneT has chosen France’s Alstom for the €1bn ($1.3bn) DolWin3 grid-connection project in the German North Sea, the first time it has looked beyond Siemens and ABB for such kit.

The 900MW link is due to be completed in 2017 and will transport power via an 83km subsea cable to the German coast. It will then travel a further 79km via an underground cable to the converter station in Dörpen/West in Lower Saxony.

TenneT – which has faced criticism over its management of delayed German North Sea offshore grid links – says DolWin3 will bring the total grid-tied offshore capacity to 6.2GW.

Alstom has named platform constructor Nordic Yards and cable supplier Prysmian as its partners on the project. Alstom has a five-year service contract as part of the agreement.

The deal represents the fourth offshore topside order for Wismar-based Nordic Yards, with fabrication already underway at three platforms – Helwin1, Borwin2 and SylWin1 – for Siemens.

In addition, it is the first order for Nordic Yards that also includes the detailed design, transport and installation packages.

The topside will contain Alstom’s transformer equipment, workshops, living quarters and machine rooms. It will be tall as an 11-storey apartment block and 55m wide, with a steel structure 85 times heavier than an Airbus, according to Nordic Yards.

Alstom has put a short video rendition of its plans at the project online here