Abstract: Urban pattern describes the "pattern" and representing the spatial characteristic of the urban area. Whereas efficiency energy was one of the hottest topics related to spatial pattern. This paper presents a study about the correlation between urban pattern and distribution of electrical energy. The aim of this research is to find out the patterns of urban space that can provide efficiency in electrical energy distribution. The research method used quantitative positivist approach, while the data collection used Geographic Information System (GIS). As object of study is commercial area around Semarang city square. There are four steps analysis i.e. electric transient and analysis program to calculate losses value, nearest neighbor analysis to determine the spatial patterns, ordinary least square to determine the relationship among variables and hot spot analysis to determine the optimum distance of spatial pattern. Based on the analysis, the most suitable spatial pattern to create the most efficient in electrical distribution in commercial area was cluster. The maximum distance for each activity was 146 m for shopping complex, 165 m for trade and service area and 358 m for hotel and supermarket. In addition, to create efficiency in electrical distribution in commercial area, the proportion of business area must be higher than other areas. Then followed by shopping complex and for the last was hotel and supermarket.