This study aims to measure and compare the efficiency level of several distribution units within the PLN service area Semarang located in Semarang City, Central Java Province. Then, using a soft system methodology (SSM) approach, this study also intends to give some ideas on enhancing the less efficient distribution unit. This research used seven variables as input (medium voltage transmission lines, low voltage transmission lines, one-phase transformer capacity, three-phase transformer capacity, the number of electrical substations, the number of house transmission, and the amount of electricity generated) and one variable as output (the amount of electricity sold). Using input-oriented, 57% of distribution units, four units out of 7 units, were considered efficient units, and the efficiency average was equal to 0.972. The less efficiency happens due to losses in medium voltage transmission lines, low-voltage transmission lines, and transformers. In this case, losses in medium voltage due to the electrical cable being too lengthy or not in compliance with the standard, losses in the low-voltage network due to electrical theft, and losses in the transformer due to low-capacity usage. Then to address this issue, several ideas have been generated, such as (i) straightening the bent of the electrical cable to reduce its length or modifying the network configuration by dividing the electrical cable into several sections (make sure that the cable length on each section compliance with the provisions of PLN); (ii) make arrangements for supervising and controlling schedules with the local security agencies; and (iii) carry out promotional activities with attractive offers to attract new customers or encourage existing customers who use small electrical power to switch to higher electrical power