37 Installation and maintenance of solar energy, thermal energy, thermoelectric energy, wind energy and other energy generating installations; Installation and maintenance of solar energy systems; Installation and maintenance of photovoltaic installations; Installation of water and electricity facilities; Plumbing; Lighting apparatus installation; Laying of cable; Rental of construction equipment; Roofing services; Construction consultancy; Demolition of buildings; Rental of battery chargers; Rental of portable power chargers