ARKONA – On behalf of STX (Chantiers d’Atlantique)

CLOCSS was involved during the offshore installation phase of the 5000t substation.

We were contracted by STX France (now known as Chantiers d’Atlantique) had the EPCI contract for this and CLOCSS assisted them in the final stage with the following tasks;

• Offshore coating surveys during outfitting and commissioning.
• Inspections with Client to clear punch-items from construction yard.
• Manage contractor to ensure quality requirements and time schedule is met.
• Review final documentation prior to handover to the Client.

ARKONA Offshore Wind Farm:

Also known as Arkona Becken Südost, Arkona offshore wind farm is a 385MW offshore facility being developed by E.ON in partnership with Norwegian energy company Equinor (formerly Statoil).  It is located 35km north-east of Rügen Island in the Baltic Sea.

Statoil purchased a 50% stake in the project from E.ON and the two partners announced their final investment decision on the wind farm in April 2016. Construction of the wind farm began in August 2016, with commissioning scheduled for 2019.

The $1.4bn project will supply renewable power for approximately 400,000 homes and offset 1.2 million tonnes (Mt) of carbon dioxide emissions a year when commissioned.

It created up to 400 construction jobs and 50 direct permanent jobs upon completion, in addition to 100 indirect jobs.

The wind farm features a total of 60 Siemens SWT-6.0-154 direct drive wind turbines rated at approximately 6MW each. The turbines have a rotor diameter of 154m and featured the world’s longest blades (75m) at time of construction, which allow them to provide an 18,600m² swept area.

The three-bladed turbines have a speed range between 5rpm and 11rpm, as well as rest on monopile foundations that will be installed at depths ranging between 23m and 37m.

The turbines will be spread over an area of approximately 40km² and will be interconnected by means of offshore cables.