Construction, installation and maintenance of solar electric and photovoltaic systems; consulting services for others in the field of repair and installation of electric vehicle batteries and chargers; consulting services for others in the field of installing, servicing and deployment of batteries for electric vehicles; installation and maintenance of electrical vehicle supply systems and equipment and computer hardware; technical support services, namely, troubleshooting in the nature of repair of electrical vehicle supply systems and equipment and repair of computer hardware; maintenance and repair of electric vehicles; recharging of batteries and accumulators; replacement of batteries; installation, maintenance, repair and servicing of apparatus and equipment for supplying electricity to electric vehicles; maintenance, servicing and repair of power generating apparatus and installations; maintenance, servicing and repair of machinery and mechanical equipment; maintenance and repair of solar power installations; installation of residential solar panel power systems; installation of non-residential solar panel power systems; installation and maintenance of photovoltaic installations; installation of photovoltaic cells and modules; installation, maintenance, repair and servicing of large utility scale photovoltaic and storage installations; installation, maintenance, repair and servicing of commercial and industrial photovoltaic installations; installation, maintenance, repair and servicing of residential photovoltaic installations