RWE has completed the installation of foundations for the 1.1-gigawatt Thor offshore wind farm in the Danish North Sea, marking a significant milestone in the development of Denmark's largest offshore wind farm to date. The final 72 monopiles for the wind turbines were installed in September, and the associated secondary steel structures were completed at the end of last week.

Foundation and Infrastructure Installation

The secondary steel installation was completed in less than 6 months using Van Oord's offshore wind installation vessel, MPI Adventure. The secondary steel structures include boat landings, main access platforms, and internal cassettes. Offshore works were coordinated from the Danish Port of Thyborøn.

To protect the foundations from harsh sea conditions until turbine towers are mounted, innovative reusable hard covers have been installed. RWE placed the 2,600-tonne offshore substation topside on its jacket foundation in July of this year.

Project Timeline and Sustainable Features

Turbine installation works are scheduled to be carried out from the Port of Esbjerg in Denmark, starting in spring 2026. Thor will be the first offshore wind farm in the world to use 36 steel turbine towers manufactured with a lower carbon footprint. Some turbines will be equipped with recyclable rotor blades, and the project features reused monopile hard covers as part of its sustainable approach.

When fully operational in 2027, Thor offshore wind farm will be capable of producing enough green electricity to supply the equivalent of more than one million Danish households.

Employment and Operations

The wind farm's operations and maintenance plan envisages creating 50 to 60 local jobs at a new RWE service building at the Port of Thorsminde. Construction of the new RWE service building is already underway and is scheduled to be finalized by the beginning of 2026.

Thor offshore wind farm is a joint project between RWE (51%) and Norges Bank Investment Management (49%). RWE is in charge of construction and operations throughout the lifecycle of Thor offshore wind farm.

RWE's Global Offshore Wind Portfolio

RWE already has 19 offshore wind farms in operation globally, including Rødsand 2, located south of the Danish island of Lolland. In addition to Thor in Denmark, the company is currently building three major offshore wind farms: the Sofia offshore wind farm (1.4 GW) in the UK, the Nordseecluster (1.6 GW, RWE share: 51%) off the German coast and OranjeWind (795 MW, RWE share: 50%) in the Netherlands.

Sven Utermöhlen, Chief Executive Officer RWE Offshore Wind, stated: “Our Thor project is progressing very well, with offshore works on schedule. We look forward to starting turbine installation next year, which will mark the next major milestone in delivering Denmark's largest offshore wind farm to date. I would like to thank our partner, Norges Bank Investment Management, as well as our suppliers and colleagues for their dedication to collaboration, quality, and safety.”

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