9 Solar cells, apparatus and instruments for generating, conducting, distributing, converting, storing electricity; inverters; photovoltaic elements
19 Roofs with integrated solar cells (not of metal), roof tiles (not of metal); roof plates (not of metal); parts for covering facades (not of metal); facade coverings (not of metal); roof coverings (not of metal)
6 Roof plates of metal, facade coverings of metal, roof coverings of metal
37 Installation and maintenance of photovoltaic installations, installation and maintenance of thermal solar installations, laying of tiles, roofing work
11 Lighting systems, heating installations, water distribution apparatus as well as sanitary installations, heat pumps, heat exchangers, hot-water heating installations
42 Consultancy in the field of energy saving (energy consulting), advice on technology in the field of solar cells, photovoltaic installations, thermal solar installations