This market group dataset represents consumable electricity with voltage levels of <1 kV in North China Grid (NCGC), including Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, and Shandong. Since the infrastructure, emissions, and line losses in the process required for electricity transmission to the end user have been considered in the market dataset, the market group data set is a consolidation of different market datasets within the region. Data are mainly from official statistics.