I am simulation a residential building (m2) with Energy-Plus to determine the Heating/Cooling loads through a typical meteorological year. for this purpose, I am using a simple HVAC with Zone control:Thermostat object.So, the aim is to predict the District:Cooling and District:Heating. Indeed, we now that cold months usually requires heating loads . however, as we look at the figure bellow, there are cooling loads in all months of the year. Any help !!!!!