Study on passive housing considering the influence of climate type and geographical difference

At present, the global fossil fuel reserves are decreasing year by year, because the sharp reduction of energy has restricted the economic development of some regions, but also shows the importance of getting rid of the excessive dependence on energy. Therefore, the construction industry has put forward the concept of passive housing, which upgrades the traditional residential buildings relying on fossil fuel heating to residential buildings that don，t need any external energy and can satisfy daily life only by relying on their own functions. German passive housing development is in the forefront of the world. It has reached the era of passive housing 3.0. By using the technology of electricity storage or heat storage for renewable energy, besides solving the energy consumption of heating and refrigeration, German passive housing has begun to solve the energy consumption of hot water, lighting and cooking, which makes the housing develop towards zero energy consumption in an all-round way. If passive buildings are industrialized in China, it will be of great significance for China's overall energy conversion, abandoning fossil energy as soon as possible and responding to global climate change. This paper briefly describes five climate types in China, the development status of passive buildings in the world and in China, and the concept of developing passive buildings according to local conditions by combining these five climate types with six key technologies of passive buildings.