Major offshore platforms EPCI contract up for grabs

A European transmission system operator is seeking Engineering, Procurement, Construction, and Installation (EPCI) services for offshore platforms.

The scope of works includes the design, procurement, fabrication, transport and installation, and commissioning of offshore substations including the substructures and all the platform systems and their related project management and coordination activities.

Germany’s 50Hertz is the TSO seeking 220kV AC offshore substations for the Ostwind 3 and Gennaker offshore wind projects in the German Baltic Sea.

The fabrication yard in which the works under this contract need to be performed must be compulsorily mobilized within a radius of 3,100 kilometres of 50Hertz’s office in Berlin, Germany.

As part of the Ostwind 3 and Gennaker projects, 50Hertz is responsible for the offshore grid connection for the designated O–1.3 offshore wind farm development area, including a company-owned and operated offshore platform and a new substation.

The location of the project is an offshore site northeast of the island of Rügen close to the existing Arkona Becken and Wikinger wind farms.

The interested parties will have until 12 July to respond to this contract notice.

50Hertz has also recently issued a contract notice for the supply and delivery of export cables for the Ostwind 3 project.

Ostwind 3 is the third offshore project for the grid connection of the wind farm areas to the north-east of Rügen island, following Ostwind 1 and Ostwind 2.

The wind farm area connecting to Ostwind 3, designated as O-1.3, is located in the area Westlich Adlergrund, north of the operating wind farms Wikinger and Arkona from 50Hertz’s operational grid connection project Ostwind 1.

The O-1.3 area does not have a name yet as the area can only be auctioned and named by interested parties in 2021, as prescribed by the German Offshore Wind Act, according to 50Hertz.

Ostwind 2, which will connect the Arcadis Ost 1 and the Baltic Eagle offshore wind farms to the German high voltage grid, is currently under construction with the first cable section installed in March.

The Gennaker offshore wind farm is being developed by wpd. The wind farm will feature Siemens Gamesa wind turbines and two offshore substations installed some 15 kilometres north of the Fischland-Darß-Zingst peninsula. The wind farm will have a capacity of up to 900 MW.

The state of Mecklenburg-Vorpommern granted a license to OWP Gennaker GmbH, a subsidiary of wpd, to build and operate the offshore wind farm in May 2019.

Construction is expected to start in 2023. Siemens Energy is the project’s EPC contractor.

Photo: 50Hertz/Illustration