37 Building construction; repair, namely, repair of generators of electricity, alternators, wind-powered electricity generators, water-powered electricity generators, AC generators, current generators utilizing solar cells, solar cells, solar panels, photovoltaic systems that convert sunlight into electric and thermal energy, photovoltaic cells, solar thermal collectors, photovoltaic cells and modules, solar collectors, electric solar modules, solar cells and installations made thereof for use in generating electricity, battery charge controllers, power inverters, wind turbine controllers, electronic controllers for use with generators of electricity, solar batteries, solar collectors for electricity generation, solar modules for electricity generation and solar cell panels for electricity generation; installation services of generators of electricity, alternators, wind-powered electricity generators, water-powered electricity generators, AC generators, current generators utilizing solar cells, solar cells, solar panels, photovoltaic systems that convert sunlight into electric and thermal energy, photovoltaic cells, solar thermal collectors, photovoltaic cells and modules, solar collectors, electric solar modules, solar cells and installations made thereof for use in generating electricity, battery charge controllers, power inverters, wind turbine controllers, electronic controllers for use with generators of electricity, solar batteries, solar collectors for electricity generation, solar modules for electricity generation and solar cell panels for electricity generation