9 Installations and systems and parts therefor, namely solar cells, solar modules, collectors, inverters, rectifiers, converters; meters, switchboards; apparatus for photovoltaic and solar thermal power generation, measuring and controlling systems and electric apparatus and instruments for conducting, switching, distributing, transforming, storing, accumulating, regulating or controlling of electricity; electronic and electronical component, all aforesaid goods in the field of photovoltaic and solar thermal energy