42 Design of photovoltaic cells, solar panels, solar modules, solar plants, solar power stations, semi-conductors and, in general, design of all types of apparatus and instruments for generating, conducting, distributing, transforming, accumulating, regulating or controlling electricity produced via solar, thermal, photovoltaic and wind energy and of any other kind of renewable energy; technological consulting in the technology field of photovoltaic cells, solar panels, solar modules, solar plants, solar power stations, semi-conductors and, in general, technological consulting in the technology field of all types of apparatus and instruments for generating, conducting, distributing, transforming, accumulating, regulating or controlling electricity produced via solar, thermal, photovoltaic and wind energy and of any other kind of renewable energy; research in the field of renewable energy, namely of photovoltaic cells, solar panels, solar modules, solar plants, solar power stations, semi-conductors and, in general, research of all types of apparatus and instruments used in the field of renewable energy, namely, apparatus and instruments used for generating, conducting, distributing, transforming, accumulating, regulating or controlling electricity produced via solar, thermal, photovoltaic and wind energy and of any other kind of renewable energy; certification and checking in the nature of testing, analysis and evaluation of the goods of others for the purpose of certification, namely, testing, analysis and evaluation of photovoltaic cells, solar panels, solar modules, solar plants, solar power stations, semi-conductors and, in general, testing, analysis and evaluation of all types of apparatus and instruments for generating, conducting, distributing, transforming, accumulating, regulating or controlling electricity produced via solar, thermal, photovoltaic and wind energy and of any other kind of renewable energy; engineering in the field of solar, thermal, photovoltaic and wind energy and of any other kind of renewable energy; technological consultancy in the technology field of energy efficiency; research in the field of environmental protection