The abbreviation of energy management system is EMS. Building Energy Management System (BEMS), Home Energy Management System (HEMS). Building energy management system is a management and control system for centralized monitoring, management and decentralized control of power distribution, lighting, elevators, air conditioning, heating, water supply and drainage in buildings or buildings. It is the general name of hardware system and software system to realize on-line monitoring and dynamic analysis of building energy consumption. It consists of metering device, data collector and energy consumption data management software system. Through real-time online monitoring and analysis management, the following effects can basically be achieved: 1) monitoring equipment energy consumption and improving the overall management level; 2) Find out the inefficient equipment; 3) Find out abnormal energy consumption; 4) Reduce the peak power consumption level. The ultimate goal of BEMS is to reduce energy consumption and save money. Household energy management system: in order to reduce household electricity consumption, we must first reduce the electricity consumption of various household appliances. In order to improve the efficiency of the core components, sensors are used to optimize the operation. Then, we should optimize the whole family. It connects home appliances and other energy-consuming devices to the internet, and reduces energy consumption through control. For consumers, the cost of light and heat can be reduced without sacrificing the comfort of life.
Two, the energy management system leading enterprises and major energy management system agents.
With the scientific research, academic and professional background of Shanghai Institute of Building Research, Tongji University, Shanghai Electric Power University and other institutions, Daxi Energy launched the BEMCloud building energy management cloud service platform on 20 10, which can provide powerful function configuration and interface configuration. It also has more than 40 sub-modules such as geographic information, comprehensive receiving, energy consumption monitoring, energy saving analysis, energy consumption diagnosis, energy audit, information release, alarm management, equipment management and expert system. The powerful subsystem function of the system platform is suitable for users in any industry, which is used to locate the crux of the high energy consumption of the user's energy system and provide effective improvement suggestions.
Advantech has introduced BEMS building energy management system, which collects data of water, electricity and gas consumption of buildings, calculates suggestions for optimizing electricity consumption, and cooperates with Web-enabled dddc controller to control time sequence and execute optimization actions, which embodies high intelligence and automation.
Johnson controls launched an upgraded version of Metasys5.0 to improve sustainability through energy management software. Any building manager or service expert can easily configure, monitor and diagnose Metasys site information. Custom summary displays common building information, including system points and equipment, through a simple spreadsheet in tabular format. In 2009, Siemens launched SIAMTIC WinCC V7.0 Asia Edition /B.Data Integrated Energy Management System, which provided China users with solutions to save energy, reduce emissions and improve efficiency. The integrated energy management system based on WinCC/B.Data is integrated by Siemens in TIA totally integrated automation ampTIP, which is a fully integrated energy automation product. With the help of this powerful tool, mature and efficient comprehensive energy analysis methods are adopted for the data obtained by SCADA layer, covering energy procurement and energy scheduling, so as to ensure efficient use of energy and cost control.
Schneider electric recently launched EcoStruxure? The energy efficiency management platform can effectively integrate different technologies in these different fields and will be more effective in the whole energy management. EcoStruxure？ The beauty of is that you can display all kinds of applications with the same interface and user habits.
Three, China market energy management system status and prospect analysis.
3. 1 current situation
At present, the existing housing construction area in China has reached 40 billion square meters. In the construction and use of buildings, the problems of high energy consumption and low utilization efficiency are very prominent. According to the survey data of relevant departments, in 2009, the proportion of building energy consumption in the total energy consumption of the whole society increased from 65438+ 10% in 0978 to about 30%. Among them, the energy consumption in the process of building operation accounts for 30% of the total energy consumption in China.
After comparing the electricity consumption of residential buildings and public buildings in Beijing, relevant persons of China Academy of Engineering found that the annual electricity consumption per square meter of residential buildings in Beijing is between 10 ~20 degrees, while that in Shanghai is around 18 ~26 degrees, and that in Guangzhou is slightly higher. However, the annual power consumption per square meter of some large public buildings such as office buildings and restaurants is between 100 ~300 degrees, which is five times that of residential buildings.
When the country vigorously advocates a conservation-oriented society, hotels, large office buildings, shopping malls and other public buildings with high energy consumption begin to realize the high energy consumption problem of equipment operation. However, many public buildings appeared earlier, and the external structures and walls have been finalized. If it is demolished and rebuilt, the builder will have to spend a lot of money. Therefore, it is a simple and efficient energy-saving means to intelligently transform electrical equipment such as lighting and air conditioning. The characteristics of "less investment and quick results" have attracted the attention of a large number of building managers, and with the deepening of national energy conservation and emission reduction policies, the demand for intelligent transformation of existing buildings will gradually expand. After the energy-saving market is slowly opened, it will leave a broad development space for intelligent enterprises.
However, in the face of huge business opportunities, only big companies such as Johnson & Johnson and Siemens set foot in the field of intelligent buildings. Most enterprises at home and abroad are watching and have not taken substantive actions. Huang Jiusong, Secretary-General of Intelligent Building Branch of China Construction Industry Association, believes that although the energy-saving market is a big cake, enterprises will face problems such as imperfect tax system, poor credit environment and difficult financing after entering the field of energy-saving transformation, and there are not many successful cases. The intelligent renovation of existing buildings is facing an embarrassing situation of "applauding without making a seat" in China.
Throughout the world, the energy crisis is everywhere, and the voice of energy saving is getting higher and higher. At present, the problem of high building energy consumption in China is increasingly prominent, and the requirement of quantitative energy consumption reduction is becoming more and more urgent. China's energy consumption per unit building area is more than 2~3 times that of developed countries. Faced with such a grim fact, energy conservation and emission reduction are imminent. At present, most energy-using units in China, especially private energy-using units, lack professionals (management and technology) who are familiar with measurement work, and the measurement management level of energy-using units is not high, and a relatively perfect measurement and testing system, especially the establishment of energy measurement system, has not been established. The senior managers of some residential quarters pay insufficient attention to energy measurement, thinking that energy measurement has only input but no output, and the basic guarantee function of energy measurement has not been realized. 3.2 Broad market prospects
Data show that in the next few years, the number of large public buildings such as office buildings, apartments, restaurants and convention centers will increase substantially, and about 654.38+0 billion m2 of large public buildings will be added in China before 2020. In China, about 90% of large public buildings are typical large energy consumers.
In fact, in view of the increasingly tense energy demand, China Municipal Government attaches great importance to energy conservation and environmental protection, actively promotes energy conservation and emission reduction, and develops green industries and green economy. Lai Ming, director of the Science and Technology Department of the Ministry of Construction, has roughly estimated the market value of building energy efficiency. "Building energy conservation is imperative, and the market capacity of building energy conservation is very large. According to estimates, there is a space of 500 billion yuan. " Some experts said, "In terms of building energy efficiency, the state has introduced a series of policies. Statistics show that China's energy conservation and emission reduction market has a market demand of at least 300 billion to 500 billion yuan every year. In 2020, China's investment in energy-efficient building projects will be at least10.5 trillion, and the market prospect of building energy management system is very broad. "