RWE has received planning approval for Nordseecluster B from Germany’s Federal Maritime and Hydrographic Agency, allowing the company to move ahead with the second phase of its broader Nordseecluster offshore wind development in the German North Sea. The approved phase will add 900 MW of capacity and forms part of the wider 1.6 GW Nordseecluster project.

The approval is significant because it keeps one of Germany’s more important offshore wind buildouts on track at a time when the country is trying to expand renewable generation, reduce fossil dependence, and strengthen domestic clean power supply. Offshore wind remains central to that effort, particularly for a system that needs large-scale generation close to industrial demand and growing electrification needs. This is an inference based on the project’s scale and Germany’s broader offshore wind expansion priorities.

The Project Is Being Built in Two Phases

Nordseecluster is located roughly 46 kilometres north of Borkum and 50 kilometres north of Juist. The first phase, Nordseecluster A, has a capacity of 660 MW and is already under construction. RWE said foundation installation for that phase has been completed, turbine installation is due to start in summer 2026, and grid connection is expected in early 2027.

Nordseecluster B will add a further 900 MW. According to the latest project update, some component manufacturing is already underway, foundation installation is planned for 2027, turbine installation is set for 2028, and commercial operation is expected to begin in early 2029.

This phased structure is important because it allows RWE to bring substantial capacity online in stages while maintaining momentum on the larger development. For offshore wind projects of this scale, phased delivery can help reduce execution risk and create a clearer construction pathway across several years. That is an inference based on the project schedule and two-stage design.

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The Development Is Also a Major Institutional Partnership

Nordseecluster is being developed jointly by RWE and Norges Bank Investment Management. RWE holds 51 percent and remains responsible for construction and long-term operation, while Norges Bank Investment Management holds the remaining 49 percent. That partnership was announced in 2025 as part of a broader agreement covering both Nordseecluster and the Thor offshore wind project.

This matters because it shows continued institutional appetite for large European offshore wind assets, especially those with visible construction timelines and strong long-term operating potential. The combination of utility expertise and long-duration institutional capital is becoming an increasingly common model for projects of this size. This is an inference based on the ownership structure and the scale of the investment partnership.

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A Key Step in Germany’s Offshore Wind Expansion

The latest approval means RWE can now proceed with the second half of a development that is expected to become one of the more substantial offshore wind clusters in German waters. Once fully operational, Nordseecluster A and B together are expected to generate around 6.5 terawatt-hours of electricity annually, according to RWE’s earlier project disclosures.

That scale makes the project strategically relevant beyond RWE itself. It adds meaningful new renewable supply into Germany’s offshore pipeline and supports the wider effort to decarbonise power-intensive sectors with domestically generated electricity. As Germany continues pushing to expand offshore wind, projects like Nordseecluster will be important not only for renewable targets, but also for industrial competitiveness and long-term energy system resilience. This final point is an inference based on the project’s expected output and Germany’s broader energy transition direction.

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