Development of building energy demand and savings targets in Germany and in various countries in Asia:
The energy demand for building conditioning is currently increasing rapidly in many countries around the world, and thus also the emissions of greenhouse gases from energy production for the building sector. With the economic development in the countries of the global south, the demands on the comfort conditions in
buildings are increasing.
As a result, the installation of technical equipment for heating, cooling and other building services in the new buildings and the retrofit in the existing building stock is increasing globally. The rapid construction activity as a result of the ongoing urbanisation in many countries leads to higher specific energy demand per area and the per capita living space is increasing worldwide.
Climate change and the warming of urban areas are leading to an increase in heat waves and consequently to increased cooling energy requirements. Even in regions where building cooling was traditionally insignificant, the number of refrigeration appliance installations is constantly increasing. The heating behaviour in the moderate and cold regions of the world is also changing.
Taken together, these factors counteract the global greenhouse gas savings targets. Integrated strategies and effective adapted planning, technical and political measures are necessary in all countries in order to reduce the building energy demand with a necessary increase of quality of use.