wiredinUSA October 2013

INDEX

Kriegers Flak tenders

TenneT seeks UXO

TenneT has granted the Swedish marine survey specialist MMT with an unexploded ordnance (UXO) search and clearance project in the German Bight. TenneT offshore GmbH (TOG) will be responsible for the electrical connections betweenoffshorewindparkswithinGerman territorial waters in the German Bight (North Sea) and theGerman electricity distribution network. A UXO threat was identified in the threat and risk assessment for the HelWin 2 HVDC and HVAC cable route, so raising a need for a geophysical survey for the offshore platform and all cable routes. The HelWin 2 offshore cable route, including the HVDC platform area, will be surveyed from the MMT survey vessel Triad, using a magnetometer array to detect anomalies. The survey will be followed by an identification and removal operation and possible detonation later in 2013 and early 2014.

Energinet is seeking cables for the Kriegers Flak wind farm, east of Denmark, due to be operational by July 2018. Energinet has already shortlisted firms for theconstruction of converter facilities. The contracts will be tendered in two lots, with the first comprising the supply and installation of 320kV high-voltage direct-current submarine cables, involving two, 80km long, extruded or single core cables and one armored fiber optic cable. The transferred power will reach a minimum of 600MW. The second lot relates to the supply and installation of a 150kV high-voltage alternating-current (HVAC) three-core subsea cable, at around 10km long with 500m of spare length. The cables should be adequate to handle transferred power of 200MW. This second lot also includes the supply and installation of a 150kV HVAC platform connection, which will comprise six single-core lead sheathed cables, measuring 100m in length with an additional 100m.

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wiredInUSA - October 2013

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