Thornton Bank – whose shareholders include RWE, EDF Energies Nouvelles and Belgian offshore specialist DEME – is already the largest offshore project in Belgian waters, after the commissioning of its second phase late last year lifted its total capacity to 184.5MW.

The first 30MW “pilot” phase, comprising six REpower 5MW turbines, has been operational since 2009. Both the second and third phases employ REpower turbines rated at 6.15MW