37 Installation, maintenance and repair of photovoltaic systems for solar renewable energy for residential, commercial, utility and industrial systems; consultancy services in the field of installation, repair and maintenance of photovoltaic installations for solar renewable energy for residential, commercial, utility and industrial systems; Installation, repair and maintenance of renewable energy equipment and systems for residential, commercial and public works purposes; installation of renewable energy systems for solar energy collection and dispersion; Installation, maintenance, cleaning and repair of solar energy systems and alternative energy products for residential, commercial and public works use