Abstract: A pole unit for a stator assembly of a wind turbine generator, the pole unit including (a) a laminated body structure having a base portion, an intermediate portion, and a top portion, and (b) a coil wound around the intermediate portion, wherein (c) the intermediate portion extends from at least a part of an upper surface of the base portion, and wherein (d) the top portion extends from the end of the intermediate portion that is opposite to the base portion and has an increasing cross-section in the direction away from the intermediate portion is provided. A stator assembly including a plurality of pole units, a method of manufacturing a pole unit, and a method of assembling a stator assembly are also provided.