Offshore power station headed to Denmark, aboard ship named Thor
## Thor Offshore Wind Farm Substation Sets Sail for Danish North Sea
The offshore high-voltage substation for RWE's Thor offshore wind farm has embarked on its journey to the project site in the Danish North Sea, marking a significant step forward in the construction of this landmark renewable energy project.
The 39-metre-tall and 18-metre-wide substation, weighing approximately 2,600 metric tonnes, was delivered by HSM Offshore Energy following the successful completion of its construction. This substantial structure is part of an extensive 1.1 GW wind farm, which, upon completion in 2027, will be capable of generating enough green electricity to power over one million Danish households[1].
The offshore substation's sail-away from HSM Offshore Energy's Schiedam yard in the Netherlands on July 18, 2025, is a testament to the dedication and hard work of the project team, as stated by Günther Fenle, Project Director for Thor at RWE[6].
Meanwhile, preparations for the installation of the offshore substation are ongoing. The topside of the substation has been placed on a barge, indicating that the installation at sea is imminent[4]. However, specific details about the exact installation and commissioning timeline have not been disclosed in the latest updates.
The Thor offshore wind farm is a joint venture between RWE and Norges Bank Investment Management, with RWE holding a 51% stake and Norges Bank Investment Management owning 49%[2]. The contract for the engineering, procurement, construction, installation, and commissioning (EPCIC) of the topside and jacket foundation was awarded to RWE, with HSM Offshore Energy being responsible for delivering the Thor substation under a contract signed in 2022[7].
The offshore wind farm will feature 72 Siemens Gamesa's SG 14-236 DD turbines[8]. Half of the monopile foundations for the wind turbines are already in place, with further construction activities ongoing, including the completion of a new RWE service building, which is expected to be finalized by the end of 2025[3].
RWE is looking forward to the installation of the offshore substation at sea later this summer and the commissioning of the systems thereafter[9]. The entire offshore substation weighs more than 5,000 tonnes, with the jacket alone weighing 2,500 tonnes[10].
As the Thor offshore wind farm continues to take shape, the project team remains focused on delivering a state-of-the-art renewable energy solution that will contribute significantly to Denmark's ambitious goals for a carbon-neutral future.
- The Thor offshore wind farm project, a joint venture between RWE and Norges Bank Investment Management, involves an investment in the renewable-energy industry with a focus on finance for energy generation.
- Upon completion in 2027, the wind farm, with its 72 Siemens Gamesa's SG 14-236 DD turbines, will generate enough green electricity to power over one million Danish households, contributing significantly to the market for renewable energy.
- The installation of the offshore substation, a substantial structure delivered by HSM Offshore Energy, is a crucial step in the construction of the Thor offshore wind farm, a landmark project in the renewable-energy sector.
