Energy networks for ski resort facilities SERFIM Energie installs electrical power supply systems (drag lifts, chairlifts, cable cars) comprising : below ground or above ground power lines (1 to 50 kV) ; transformer stations ; power supply for power cabinets and the ancillary service cabinets of machines ; domestic power for chalets associated with mountain lift facilities. Serpollet ensures the electrification of : artificial snow networks with power and communication cables and equipment for ski slope inspection systems ; transformer stations, machine room pumps and compressors.