7 Small power stations for generating electricity from waste heat, gases or cooling water, mainly consisting of motors, generators, heat regenerators, batteries and control and regulation technology apparatus; energy recovery modules, namely, electric generators and combustion engines other than for land vehicles with coupled heat exchangers for electricity and heat generation, being complete units; small power stations in the form of modules for the sustainable, co2-neutral generation, recovery and providing of electricity and mechanical energy via the conversion of waste heat, gases and cooling water from different industrial, transport and energy generation processes using heat exchangers, evaporators, expansion machines, condensers and pumps; electricity generating machines and machine parts, in the nature of heat exchangers, evaporators, expansion machines, condesnsers and pumps for use in the following fields: higher-level control of small power stations, generation, conversion and recovery of electricity or mechanical energy from heat, related accessories; internal combustion engines with coupled heat exchangers for generating current and heat, being complete units in the form of energy recovery modules, other than for land vehicles; the aforesaid goods, not in relation to ehicles for land use, automobiles and land vehicle fittings