Per Aarsleff A/S, as the leading party in an equally shared consortium with Bilfinger Berger GmbH, was contracted by the London Array consortium to execute Phase 1 offshore works. The scope comprised the design, production and installation of 177 monopile foundations (175 for wind turbines and two for offshore transformer stations), including transition pieces, and the installation of 175 wind turbines at the 630 MW London Array offshore wind farm in the Outer Thames Estuary, around 20 km off the Kent and Essex coasts. The execution period was stated as 2009–2012, with planning and production mainly in 2009–2010 and offshore installation in 2011–2012.