Technical losses assessment in distribution systems with reduced measurement capabilities

In the recent years, the electricity Regulators want to reduce the energy cost and to raise the energy efficiency by curtailing the energy losses, particularly in the MV and LV distribution networks. The definition of an adequate methodology for the calculation of the energy losses in the distribution system is crucial for both the Regulator and the Distribution Companies (DISCOs). The assessment of the energy losses in distribution systems with reduced measurement capabilities (fast developing countries) is usually performed by resorting to simplified methods of calculation or to the simple difference between purchased and billed energies. This approach may provide too imprecise or inaccurate results. Better accuracy can be achieved with the methodology illustrated in this paper.