The generator is a multi-pole permanent magnet generator and is directly mounted to the hub. The magnets take care of the rotor excitation so no external field excitation is needed. This implies that the generator losses reduce by 25% compared to a wound rotor with external field excitation. The stator, equipped with cooling fans, is located on the outside and is cooled by the outside air. The stator windings are vacuum impregnated under pressure. In the inside of the generator dried and, if necessary, filtered air is circulated. This air assures an equal temperature distribution in the generator and, as little leakage occurs through the seals, over-pressures the generator. Thus dust and salt particles cannot enter the generator. The weight of the generator is 49 ton and measurements are 3.9m x 2.0m.