The utility must have protocols and standards to perform corrective and preventive maintenance in the power substations and networks. There are safety plans for contingencies regarding the quality of the supply and distribution of electrical energy. It is also recommended a verification of operational status of supply and distribution system elements for which visual inspection or operational test is possible is carried out at least once every 3 years and for the strategic systems every 1 year. For this maintenance and operation, it is also necessary that GIS tools are available to support isolation, repair, and resolution of contingencies in supply and distribution systems. In systems with various alternative supply sources, operation center protocols exist to assure quality of electrical energy on initial use of new supply sources (sources and interconnections), as protocols exist to analyze and resolve non-compliance with applicable regulations regarding the quality of the supply and distribution of electrical energy.