An offshore substation at the 317MW Sheringham Shoal offshore wind farm off the coast of North Norfolk comprising 88 Siemens 3.6MW turbines. Such electrical infrastructure includes disconnectors, 132kV and 33kV gas insulated switchgear, 132kV and 33kV 90MVA transformers, a 132kV 60MVAr shunt reactor, substation automation and telecommunications systems and protection. Sheringham Shoal is owned by Norwegian companies Statkraft, Statoil and the UK Green Investment Bank. (Courtesy Statkraft).