Scientific, surveying, optical, weighing, measuring, signalling, checking (supervision) instruments as well as life-saving apparatus and equipment; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; data processing equipment; computer, computer software, photovoltaic devices for generating electricity, in particular photovoltaic modules and installations made therefrom; lightning conductors; voltage surge protectors; computer programs for the planning and project management of photovoltaic installations as well as for calculating their energy yields; photovoltaic solar modules; photovoltaic devices and installations for generating solar electricity, solar battery chargers; solar energy collectors for electricity generation; [electric] solar cells; solar panels; solar panels for generating electricity; portable solar panels for generating electricity.

Building construction; steel construction and light metal construction work; building of exhibition stands and stage sets; building, installation and maintenance of photovoltaic installations, including establishing work; building, installation and maintenance of photovoltaic cells and modules; assembling [installation] of machine plant; assembling [installation] of building framework; building construction supervision; varnishing.

Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; software creation; software development; software engineering; architectural and engineer services; conducting technical project studies; construction drafting; civil engineering frameworks planning services; engineering consultancy and planning services in the field of renewable energy, in particular photovoltaic and biogas installations, including calculation of energy sources; conducting engineering surveys.