9 Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, particularly in the field of alternative energy (photovoltaics, heat pumps, ventilation)
37 Construction services; repair; installation services, namely, in the field of alternative energies (photovoltaic energy, heat pumps, ventilation)
42 Scientific and technological services in the field of alternative energies (photovoltaic energy, heat pumps, ventilation), in particular consulting, expertise, planning, particularly technical planning for buildings and technical design