RWE has erected the first wind turbine at its Nordseecluster offshore wind project in the German North Sea, marking what the company describes as a significant construction milestone for its largest offshore wind development currently under construction.

The turbine was installed approximately 50 kilometres north of the German island of Juist, setting the stage for full grid connection of the first phase by early 2027.

Scale and Specifications of the Installation

The Nordseecluster project is being developed in two phases, with a combined total capacity of 1.6 gigawatts. The first phase, Nordseecluster A, carries a capacity of 660 megawatts and will feature 44 Vestas turbines once installation is complete.

Each turbine is rated at up to 15 megawatts, stands at a hub height of 145 metres and is equipped with rotor blades measuring 115 metres in length. The turbines are Vestas V236-15.0 MW units.

Turbine installation for Nordseecluster A is being carried out by DEME's vessel Norse Wind, a specialised installation ship capable of transporting and erecting five complete turbine sets per voyage cycle. RWE expects all 44 turbines to be in place by the end of 2026, with the full 660-megawatt phase scheduled to be connected to the grid in early 2027.

Second Phase Already in Production

While installation work proceeds on Nordseecluster A, manufacturing of main components for the second phase, Nordseecluster B, is already underway. That phase will add a further 900 megawatts of generating capacity to the project, bringing the combined total to 1.6 gigawatts.

Nordseecluster B will incorporate 60 Vestas turbines. Foundation installation for the second phase is scheduled to begin in 2027, followed by turbine installation in 2028.

Commercial operations for Nordseecluster B are expected to commence in early 2029. Together, the two wind farms are projected to generate around 6.5 terawatt-hours of electricity annually.

Industrial Decarbonisation as a Core Purpose

RWE has positioned the Nordseecluster project explicitly around industrial decarbonisation, stating that it intends to use the electricity generated to support industrial customers seeking to reduce their carbon emissions through customised energy solutions. The company indicated that technology companies are among those increasingly seeking such arrangements.

Earlier in 2026, RWE signed a Power Purchase Agreement with Amazon covering 110 megawatts of output from Nordseecluster B. The agreement was cited as an example of the type of commercial arrangement the project is designed to support.

Sven Utermöhlen, Chief Executive Officer of RWE Offshore Wind, said that the installation of the first turbine marked a significant milestone in the delivery of the project and that once fully operational, the Nordseecluster would make an important contribution to Germany's energy security while helping to decarbonise industry.

Damien Lhors, Head of Global Offshore at Vestas, described the milestone as underscoring the strength of the long-standing partnership between the two companies and said that projects at such scale are critical for accelerating Europe's energy transition. Lhors added that production and delivery of the V236-15.0 MW turbines are progressing well.

Ownership Structure

Nordseecluster is a joint venture between RWE, which holds a 51 percent share, and Norges Bank Investment Management, which holds the remaining 49 percent. RWE is responsible for the construction and operation of both wind farms across their entire life cycle.

RWE's Broader Offshore Construction Pipeline

The Nordseecluster development sits within a wider portfolio of large offshore wind projects RWE currently has under construction. Alongside the German project, the company is building Sofia in the United Kingdom, which has a capacity of 1.4 gigawatts, Thor in Denmark at 1.1 gigawatts, and OranjeWind in the Netherlands at 795 megawatts.

The four projects under construction represent a combined generating capacity of 4.8 gigawatts, of which RWE's share amounts to 3.1 gigawatts.

The company has stated an intention to expand its total offshore wind capacity by a net 5 gigawatts by 2031, and it reports having more than 20 years of experience in the development, construction, and operation of offshore wind farms.

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