Twenty years experience of repair and construction electrical systems on board of yachts. We deal with: energy distribution systems from the most complex (like electrical panels with automatic change over with synchro generators) to the simplest. 12 or 24 V systems and battery replacement. Maintenance and replacement of: electric pumps, windlasses and winches. Electrical assistence of: air conditioning and hydraulic automations like gangways, sails, windlasses or winches. Utp cable or wirelss network lan. Megger test. Recording of spike and interruption of power supply.