建筑节能对节约能源和国家的可持续发展起到至关重要的作用,是实现国家能源安全的重要组成部份。国际上建筑节能技术进步非常快,已经从低能耗建筑向被动式建筑、零能耗建筑到产能建筑上发展。提高建筑性能,使建筑本身对能耗的需求降到最低,并充分利用可再生能源,从而摆脱对传统化石能源的依赖已经成为德国、 Building energy conservation plays a crucial role in energy conservation and sustainable development of the country and is an important part of achieving national energy security. International building energy-saving technology is very fast progress has been from low-energy buildings to passive buildings, zero-energy buildings to production capacity development. Improving building performance, minimizing the building’s own energy consumption needs and making full use of renewable energy to get rid of the dependence on traditional fossil fuels has become a reality for Germany,