Charging station services for electric vehicles; Installation of renewable energy equipment and systems for residential and commercial purposes; Installation and maintenance of solar energy based power plants; Installation of solar thermal installations; installation of renewable energy systems for solar energy collection and dispersion; Installation of solar energy systems and alternative energy products for residential and commercial use; repair and maintenance of photovoltaic installations; Construction and maintenance for others of cogeneration and independent electric power production facilities; Repair and installation services, namely, the installation of heating, cooling and environmental control systems; Consulting services in the field of construction of energy-producing assets; Installation, maintenance and repair of energy systems, namely, appliances, namely, heating, cooling, air conditioning ventilation and mechanical systems; pipeline installation, repair and maintenance; laying and construction of pipelines; construction management; Maintenance and repair services provided pursuant to warranty contracts on residential internal energy equipment systems, namely, HVAC equipment and ventilation systems and connections thereto, residential appliances, namely, water heaters, dishwashers, refrigerators, clothes washing machines, clothes dryers, garbage disposal units, and connections thereto, residential electrical wiring and connections thereto, namely, electric lines, fuse boxes, circuit breaker panels, electrical switches, and electrical receptacles, and residential natural gas and water plumbing and connections thereto, namely, plumbing lines, pipes, connectors, toilets, faucets, fixtures, drains, vents, and valves; Leasing of residential internal energy equipment and appliances, namely, dishwashers, clothes washing machines, and clothes dryers; Repair or maintenance of gas lines and appliances in the nature of heating, cooling, air conditioning ventilation and mechanical systems, heat pumps, water heaters, dishwashers, refrigerators, freezers, clothes washing machines, clothes dryers, ovens, ranges, cooktops, and garbage disposal units