Construction Progress Update at Thor Offshore Wind Farm: Half of the Monopile Foundations Installed
The Thor offshore wind farm, Denmark's largest, is making significant strides in its construction, with half of the monopile foundations already installed. The project, jointly owned by RWE and Norges Bank Investment Management, is expected to be operational by 2027.
As of mid-July 2025, the heavy-lift vessel Les Alizés has installed 36 monopiles at the site, located approximately 22 km off the west coast of Jutland. Each monopile, about 100 meters long and weighing up to 1,500 tonnes, was transported from Eemshaven in the Netherlands. To protect the monopiles until turbine installation begins, reused hard covers are being applied on site.
The wind farm will have a total capacity of around 1,080 to 1,100 MW upon completion. It will produce enough green electricity to supply the equivalent of more than one million Danish households.
RWE, responsible for both the construction phase and long-term operations of the wind farm, has already completed the offshore high voltage substation. The substation, delivered by HSM Offshore Energy, will collect electricity from all 72 turbines and transmit it to the onshore grid.
The Thor wind farm will feature 72 Siemens Gamesa's SG 14-236 DD turbines. The turbine towers for the wind farm will be notable for a significantly reduced carbon footprint, with 50% of rotor blades being recyclable.
Wind turbine installation for the Thor wind farm is scheduled to start in 2026 from the Port of Esbjerg in Denmark. The project will create 50 to 60 local jobs in a new service building at the Port of Thorsminde, contributing to Denmark's economic growth.
Sven Utermöhlen, CEO of RWE, stated that reaching halfway in the safe installation of the monopiles is a great achievement. The Thor wind farm is set to play a crucial role in Denmark's efforts towards carbon neutrality and the expansion of renewable energy sources.
The Thor wind farm's significant progress in construction has attracted attention from the energy industry and finance market, as its operational status by 2027 promises considerable green electricity production for Denmark. With the Les Alizés vessel installing 36 monopiles sourced from Eemshaven, the focus has now shifted to turbine installation in 2026, where Siemens Gamesa's technology will be implemented, reinforcing Denmark's position as a leader in renewable energy and contributing to its economic growth through local job creation.
