“…The above results show that the higher cooling/heating load can be significantly reduced by optimizing the building envelope but do not achieve ZNE. While more energy-saving factors need to be considered to achieve the goal of carbon neutrality, such as air conditioning setting temperature, air conditioning running time, personnel density, and other indoor and outdoor thermal disturbances, as well as the application of passive energy-saving technologies, such as shading systems [ 81 ], double-cooling/heating systems [ 82 ], and solar energy utilization systems [ 83 ]. Moreover, considering that the thermal properties of the envelope will not be intermittently replaced due to seasonal differences, energy-saving design from a whole year perspective is more in line with the operational characteristics of the building.…”