The 288MW Meerwind – comprising two adjacent zones and set to be Germany's largest offshore facility – is being developed by Bremerhaven-based WindMW, which is majority owned by funds managed by Blackstone.

That makes the deal Siemens’ first turbine order from a private-equity house.

The turbine contract was finalised after Blackstone nailed down €1.2bn ($1.7bn) in financing, becoming the first developer to reach financial close under German development bank KfW’s aggressive new offshore wind programme.

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