One of the most important parameters of energy efficiency is to determine the heating and cooling requirements of the buildings and to develop the appropriate heating/cooling technology. In this study, the regional residence heating/cooling loads were determined in order to develop technology for regional heating/cooling systems in Turkey. Heating/cooling loads of the residences were made separately for each province according to the heating regions determined in accordance with TS 825. Fuel and electricity consumption, population, number of residences and meteorological data were used as the basis for determining the heating/cooling loads. Using the data obtained, an important source data was obtained to investigate the possibility of using alternative energy sources for each region or even every province.