Construction, installation and maintenance of solar energy, electrical, and photovoltaic installations; Installation and maintenance of solar thermal installations; Installation and maintenance of photovoltaic/solar thermal hybrid installations; Installation and maintenance of solar energy based power plants; Installation of energy generating installations, in particular photovoltaic and solar installations; Maintenance and repair of energy generating installations, in particular photovoltaic and solar installations; Building construction, in particular services in the field of the construction of energy generating installations, in particular photovoltaic and solar installations; Installation of solar energy systems and alternative energy products for residential and commercial use; Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources and rainwater

Design of solar photovoltaic systems; Custom design and engineering services of solar electric and photovoltaic systems; Technology planning and consulting in the field of solar energy, specifically specializing in substrates primarily of ceramic, silicon and non-metals for electrical or thermal insulation of solar cells, photovoltaic cells, and solar collectors; Quality evaluation for others in the field of maintenance, repair and installation of solar installations and photovoltaic installations; Scientific and technological services, namely, engineering in the field of solar energy and research and design relating thereto; Industrial analysis in the nature of product testing and research services in the field of solar energy devices; Technical consultancy relating to the conservation of energy; Technical consultancy in the field of energy conservation; Research in the field of environmental protection; Technical design of energy generating installations, in particular photovoltaic and solar installations; Technical consultancy in the field of photovoltaic and solar installations; Product development for others namely, development of solar cells and solar modules, and of energy generating installations, in particular photovoltaic and solar installations; Scientific and technological services, namely, testing and analysis in the field of energy consumption of buildings; Technical consultancy in the field of renewable energy, namely, testing and evaluation of renewable energy projects and equipment