37 Repair of wind-power and solar energy equipment and facilities, namely, repair of solar-powered or wind-powered current generators, generators of solar powered electricity, wind-powered generators for electricity generation, alternators, solar cells, solar panels, photovoltaic systems that convert sunlight into electric and thermal energy, photovoltaic cells also including a solar thermal collector sold as a unit, photovoltaic solar modules for power generation, inverters, solar collectors, electric solar modules, solar cell arrays, solar batteries, solar battery charge controllers, solar wafers, electronical sensors for measuring solar radiation, electronic controllers for use with generators of electricity, solar collectors for electricity generation; Repair of water-powered generators for electricity generation; Building construction; Installation services of wind-power and solar energy equipment and facilities, namely, installation of solar-powered or wind-powered current generators, generators of solar powered electricity, wind-powered generators for electricity generation, water-powered generators for electricity generation, alternators, solar cells, solar panels, photovoltaic systems that convert sunlight into electric and thermal energy, photovoltaic cells also including a solar thermal collector sold as a unit, photovoltaic solar modules for power generation, inverters, solar collectors, electric solar modules, solar cell arrays, solar batteries, solar battery charge controllers, solar wafers, electronical sensors for measuring solar radiation, electronic controllers for use with generators of electricity, solar collectors for electricity generation