Hi Valentino If you have a site powered by three phases, keep in mind that the energy charge is for the three phases, that is, if one is cut or suspended and there is no substation at the site in question, it is a supply problem; and if they do not report this problem to the company that supplies, it is a fine for the imbalance of loads. On the other hand, the three-phase system is precisely to balance the charges and lower the cost of energy, not to select which one you will feed today and which tomorrow.