Apparatus for managing energy supplies; Ceramic parts for converting electrical energy into mechanical energy; Devices for measuring energy; Devices for switching over energy tariffs; Electrical apparatus (other than generators) for use in energy supply

Advisory services relating to energy efficiency; Energy auditing; Energy use and conservation consultancy; Consultancy in the field of energy-saving; Advisory services relating to the use of energy

Devices for measuring energy; Energy control devices

Recording data relating to energy consumption in buildings; Energy use and conservation consultancy; Energy auditing; Advisory services relating to energy efficiency; Advisory services relating to the use of energy; Consultancy in the field of energy-saving