Building, industry and transportation are the three high energy consuming fields recognized globally. Building energy consumption in developed countries accounts for about 33% of the total energy consumption in China. With the acceleration of China's urbanization process and the improvement of people's living quality, air conditioning, ventilation, heat supply, lighting, hot water supply, water supply and drainage, elevators, office and other specific equipment are constantly pushing up the energy consumption of building operation.
Building energy conservation has always been an important part of the national sustainable development strategy. Over the years, with the guidance of policies and the cultivation of market awareness, in addition to technical energy-saving means such as upgrading and updating of equipment and materials, management and energy conservation relying on the energy management system has also been widely promoted. Building energy management system has realized the visualization, digitalization, informatization and intelligent development of energy management, whether in the energy-saving transformation scheme of existing buildings, In the planning and design scheme of new buildings, the construction of building energy management system has become an essential part.
Current situation of building energy in China The total energy consumption of buildings is large, and the building stock is large (more than 40 billion square meters). Most of them use conventional energy, almost all of which are high consumption building materials. The overall building energy consumption accounts for more than 30% of the total social energy consumption, which puts great pressure on energy conservation and emission reduction.
Building energy consumption varies significantly due to different geographical locations and building types, among which the energy consumption per unit area of office, hotel and shopping mall buildings is relatively high. And with the expansion of business scale year by year, the demand for energy is growing rapidly.
Building energy management level and informatization level are generally low, electromechanical equipment management and maintenance are not timely, unreasonable energy use, low efficiency and other phenomena are common, resulting in serious energy waste. Building energy conservation has great potential.
