Machines and installations composed thereof for regenerative energy production, namely, wind turbines, current generators, electric generators, wind energy converters, windmills, towers, rotor blades and rotors for wind turbines and parts for these machines, namely, slewing rings, drives for adjusting the rotor blades, drive trains e.g. consisting of a rotor hub, a rotor shaft, a gearbox, a coupling and a generator, gearboxes, brakes, nacelles, wind direction sensors, anemometers

Electric apparatus, instruments and machines, namely, electric circuits, frequency converter, measuring instruments, signaling instruments, controlling instruments, [ data processing equipment and ] electric protection devices, namely, lightning protectors, fault-voltage protective switches, fault-current protection switches, ground fault circuit interrupters, used especially against electrical surge, over-current, false current, short circuits, also for use in installations for wind energy production; computer software for controlling wind turbines

Installation, development, construction and assembling, maintenance and repair of wind turbines and their parts; installation of wind parks, namely, installation, development, construction, assembling, maintenance and repair of [ energy networks, substation, grid connection, ] wind turbines [, communication networks, access roads for wind parks, crane areas for wind parks and other civil infrastructure for wind parks ]

Technical operation and technical support of operation of wind parks for others, technical consulting services relating to the technical operation of wind turbines; conducting research projects concerning wind turbines and their parts; technical development and technical inspection service of wind turbines and their parts