Wind-power unit with vertical axis

The invention relates to a wind-power unit with a wind turbine, a generator with vertical axis (8, 9, 10). A supporting pillar (2) supports the wind turbine and a foundation (3) is arranged for the supporting pillar (2). According to the invention, the stator (8, 9) of the generator (8, 9, 10) is integrated with the foundation (3). The invention also relates to an electric mains connected to a wind-power unit according to the invention. The invention also relates to a method in the production of such a foundation. According to the method, the stator is built together to a generator having thefoundation. The invention furthermore relates to use of the wind-power unit to generate electrical energy.