Energinet to connect Denmark’s largest offshore wind farm to grid


Denmark – RWE has signed an agreement for the Thor offshore wind farm with the Danish grid operator Energinet.

The agreement governs the technical setup, power quality, and collaboration between RWE and Energinet at the Volder Mark point of connection (POC).

Thor will be Denmark’s largest offshore wind farm to date, with a capacity of around 1,000 megawatts (MW). The wind farm will be built about 22 kilometres off the Danish west coast, near the port of Thorsminde.

Delivering to grid

Energinet will build a new 220 kV station to connect the offshore wind farm to the grid as part of the 220/400 kV conversion of the existing 400 kV station in Idomlund. From there, 28 kilometers of underground cables will be laid to connect to a new 220 kV station (POC) being built at Volder Mark, which is 4 kilometers from the coast. The electricity generated by the offshore wind farm will be delivered to the grid at Volder Mark.

Thor will be able to produce enough green electricity to power over one million Danish households once it is fully operational, which is expected to be no later than 2027. RWE will build and pay for the entire offshore electrical high voltage system up to POC, as well as the onshore grid connection, which is a first for offshore wind in Denmark. A concession agreement signed with the Danish Energy Agency (Energistyrelsen) in January governs this.