Abstract: The invention relates to gondolas for a wind energy system (WEA), a rotative connection for a wind energy system, a wind energy system and a method for operating a wind energy system, wherein universally applicable components are used, said components being easily interchangable and/or easy to produce everywhere, irrespective of the type of wind energy system, such that, for instance, they can be replaced within established replacement intervals at low cost in order to keep down times of the inventive wind power system to a minimum, such that the yield of the inventive wind system can be optimized as a result of increased technical availability.