China is currently in the process of rapid development of urbanization, urban and rural construction scale continues to expand, accompanied by a large amount of consumption of land, energy, water and other resources and a huge impact on the ecological environment. Taking building energy saving and green building as a hand, properly handling the energy resources and environmental issues in the process of urban and rural construction and development is crucial to ensure China's energy security and improve the quality of urbanization development. First, the overall situation of China's building energy efficiency and green building development (a) The overall characteristics of building energy consumption Building energy consumption mainly includes the energy consumed by building heating, air conditioning, hot water, lighting and all kinds of electrical appliances used in the building. Building energy consumption is closely related to regional climate characteristics, urban planning, thermal performance of building envelope and efficiency of energy-using equipment, building functions and user behavior. China's vast territory, complex climate, from north to south across the cold, cold, hot summer and cold winter, hot summer and warm winter and mild and other climatic zones, compared with the world at the same latitude, the winter is cold and the summer is hot, the regional economic level and living habits of the differences are obvious, so that China's energy consumption of the building presents the following main features: First, the difference between the northern and southern building energy consumption is large, the northern region to winter heating energy consumption is dominated by the southern regions in summer air-conditioning energy consumption; second, the building envelope thermal performance and efficiency of energy equipment, building use function and the use of energy behavior of the people. Summer air-conditioning energy consumption; Second, urban and rural building energy consumption differences, urban to coal, electricity, oil and other commodity energy consumption, in addition to some of the use of commodity energy in rural areas, straw, fuel wood and other biomass energy is still a large number of use; Third, residential buildings and public **** building energy consumption differences are obvious, residential building energy consumption is closely related to the residents' lifestyle. (ii) The total energy consumption of buildings is large and growing fast It is estimated that in 2014, the total commercial energy consumption of buildings in the country accounted for about 20% of the proportion of terminal energy consumption of society as a whole, and the proportion will be further increased if the loss of terminal energy in the process of production, transportation, and conversion is included in the calculation, which is one of China's three major key areas of energy use. Compared with 2000, the total energy consumption of buildings in 2014 has increased by about 1 times, and will continue to grow, the main reason, first, the process of urbanization is accelerating, the building area continues to grow rapidly, in 2014, China's housing construction area reached 3.55 billion square meters, and the growth of the total volume of construction has led to a faster growth in energy consumption. Secondly, with the improvement of people's living standards and the level of building services, the increase in energy-using equipment in buildings has led to an increase in building energy consumption. For example, the number of air-conditioners per 100 urban households grew from 30.8 in 2000 to 126.8 in 2012, an increase of more than three times. Thirdly, urban and rural residents' demand for indoor comfort in buildings has increased, resulting in faster growth in energy consumption. For example, the Yangtze River Basin used to be a non-heating area, but now the demand for winter heating is gradually increasing, resulting in rapid growth in heating energy consumption. Fourth, building energy use in rural areas has grown significantly, the proportion rose from 31% in 2001 to more than 60% in 2014, with rural buildings in Inner Mongolia, Heilongjiang, Jilin, Liaoning, Xinjiang and other places using more than 30 kilograms of coal per square meter per year for heating, together with lighting, cooking, household appliances and other domestic energy, the proportion of energy consumption of commodities is more than 70%. From the situation in developed countries, with the development of the economy and society, the construction industry will gradually exceed industry and transportation to become a key industry of energy use, accounting for the proportion of end-use energy consumption of society as a whole will be more than 40%. (C) building energy saving and greening level is still low Building energy saving is in the process of building planning, design, construction and use and maintenance, under the premise of meeting the prescribed functional requirements of the building and the quality of the indoor environment, through the adoption of technological measures and management means, to achieve the reduction of operational energy consumption and improve the efficiency of the use of energy process. Green building is a building that maximizes resource conservation (energy saving, land saving, water saving, material saving), protects the environment, reduces pollution, and provides people with healthy, applicable and efficient use of space, and lives in harmony with nature*** during the whole life span. Due to the late start of China's building energy efficiency work, old buildings before the 1980s and a large number of new buildings constructed after the 1980s are still non-energy-efficient buildings.In 2014, the proportion of non-energy-efficient buildings among existing buildings in cities and towns nationwide still accounted for about 60%. At the same time, China's current energy-saving standard requirements for new buildings compared with developed countries, there is still a considerable gap, (calculated according to the same level of indoor comfort) China's northern residential annual heating energy consumption indicators, is still developed countries, 1.5 to 2 times, the public **** building cooling and heating annual energy consumption indicators, our country for the developed countries, about 1.2 to 1.5 times. In terms of green building development, developed countries have successively developed green building assessment systems adapted to the climatic characteristics of different countries since 1990, providing technical basis for decision-makers and designers, and playing an important role in promoting the development of green buildings worldwide. Compared with developed countries, China has only begun to gradually promote green building since 2008, the level and quality of green building development is still not high, there are problems such as the total scale is still small, the regional development is unbalanced, the proportion of high-performance is small, and most of the comprehensive effect stays in the design stage, and the effect of green building promotion is greatly reduced. Second, China's efforts to promote building energy efficiency and green buildings achieved (a) the implementation of mandatory energy-saving standards for new buildings In 2014, new buildings in cities and towns across the country to fully implement the mandatory energy-saving standards, the new energy-saving floor space of 1.66 billion square meters, which can form the energy-saving capacity of 15 million tons of standard coal. The accumulated energy-saving building area in cities and towns across the country is 10.5 billion square meters, accounting for about 38% of the civil building area in cities and towns, **** forming an energy-saving capacity of 100 million tons of standard coal. (ii) Vigorously promoting the development of green buildings As of the end of 2014, there were 2,559 projects nationwide*** that received green building evaluation labels, with a total floor area of more than 280 million square meters, of which 1,017 projects received green building evaluation labels in 2014, with a floor area of 113 million square meters. The mandatory promotion of green buildings is advancing steadily, with a total of 378 million square meters of mandatory green building area nationwide. By the end of the 12th Five-Year Plan, the cumulative green building area promoted nationwide will exceed 1 billion square meters. (C) energy-saving renovation of existing residential buildings The Ministry of Finance and the Ministry of Housing and Urban-Rural Development arranged for the 2014 annual heating areas in the northern part of the existing residential building heating measurement and energy-saving renovation plan of 175 million square meters, as of the end of 2014, around the **** completed the renovation of an area of 210 million square meters, the "Twelfth Five-Year Plan" four years cumulative total of 830 million square meters of renovation area completed. The cumulative area completed in the first four years of the Twelfth Five-Year Plan was 830 million square meters. Energy-saving renovation of existing residential buildings in hot summer and cold winter areas has been steadily advancing, and in 2014*** the renovation area of 15.21 million square meters was completed, with a cumulative renovation area of 70.9058 million square meters. (IV) Construction of Energy Efficiency Supervision System for Public **** Buildings By the end of 2014, the country had completed energy audits of more than 12,900 buildings in public **** buildings, and publicized the energy consumption of more than 13,000 buildings, and constructed dynamic monitoring platforms for energy consumption in public **** buildings in 33 provinces (autonomous regions and municipalities), and carried out dynamic monitoring of energy consumption in more than 7,400 buildings. The country has completed the energy-saving renovation of public *** buildings in an area of 39.275 million square meters. (V) Renewable Energy Building Application As of the end of 2014, the national urban solar photovoltaic thermal application area of 2.7 billion square meters, shallow geothermal energy application area of 460 million square meters, and solar photovoltaic building installed capacity reached 2,500 megawatts. Third, promoting building energy efficiency and green building development is of great significance (a) Promoting building energy efficiency and green building development is an important embodiment of promoting the construction of ecological civilization in the process of new urbanization China's current rapid advancement in urbanization has exposed a series of problems that need to be solved urgently, mainly including the construction of towns and cities oriented to scale expansion, the implementation of urban planning is not strong in persistence, the consumption of resources and the environment is growing too fast, infrastructure The main problems include the orientation of urban construction on scale expansion, the lack of continuity in the implementation of urban planning, the overly rapid growth in resource and environmental consumption, the imbalance in the construction of infrastructure, the low level of public ****service capacity, and the serious air and water pollution in some cities. The National New Urbanization Plan (2014-2020) issued by the CPC Central Committee and the State Council, as well as the Opinions on Accelerating the Advancement of Ecological Civilization Construction, both explicitly state that the concept of ecological civilization should be comprehensively integrated into the process of urbanization, and efforts should be made to promote green, recycling and low-carbon development, as well as to conserve and intensively utilize resources. Accelerating the development of building energy efficiency and green building, planning, constructing and operating in accordance with the requirements of resource conservation and environmental friendliness in the spatial layout of urban and rural construction, infrastructure support, building construction and operation management, and promoting the transformation of urban development from scale expansion to quality enhancement are of great practical significance in guiding our country to take the new road of urbanization and implementing the requirements for the construction of ecological civilization. (ii) Promoting building energy efficiency and green building development is an important initiative to implement the national energy consumption revolution and energy security strategy Promoting energy consumption revolution and curbing unreasonable energy consumption is a strategic plan made by the CPC Central Committee and the State Council. China is in a period of rapid urbanization, urban and rural construction is huge, at the same time, China as a developing country, the level of energy consumption of buildings compared with developed countries is still very low, the energy consumption per unit of floor area is only about 1/3 of the United States, the building conditions of service and the level of comfort is relatively low. With the improvement of the people's demand for indoor thermal comfort, the heating line to the south, the transformation of the building energy model, the rural energy "urbanization" and other trends are becoming more and more obvious, the building energy consumption rigid growth pressure is enormous. Through building energy efficiency and the development of green building, guide urban and rural construction to take the road of energy saving, high efficiency, green, low carbon development, so that China can achieve the people's relatively high demand for life with lower energy consumption, can effectively slow down the growth rate of total building energy consumption, to ensure that China's energy consumption revolution and the smooth implementation of the energy security strategy. (C) promote building energy efficiency and green building development is to promote the prevention and control of air pollution to cope with climate change is an important element of China's air pollution prevention and control program put forward to reduce pollutant emissions, and gradually eliminate heavily polluted weather; to cope with climate change strategy, the reduction of greenhouse gas emissions has also put forward a clear goal. Coal-fired heating and construction dust in the construction field are important sources of pollutants and greenhouse gas emissions. Promoting building energy efficiency and green building, and transforming the building construction method and the rough energy use pattern in the process of using buildings can significantly improve the environment of the construction site, effectively reduce construction dust, and reduce the consumption of coal-fired heating, reduce the sulfur-containing and nitrogen-containing pollutants as well as carbon dioxide emissions, promote environmental protection and air quality improvement, reduce the pressure of greenhouse gas emissions, improve people's living conditions, and enhance the satisfaction and happiness of the whole society. (d) Promoting building energy efficiency and a sense of well-being. (iv) Promoting the development of building energy conservation and green building is an important hand in promoting the transformation and upgrading of the construction industry China still lags behind western developed countries in terms of building energy conservation, building intelligence, new building materials, building industrialization, renewable energy and other new green technologies and new product integration and application. Currently, the development of low-carbon communities and zero-energy buildings in European countries is in the ascendant, and the United States will be the eco-city and green building as a guide to the key areas of green, low-carbon and intelligent new technological innovation. Promote the development of building energy efficiency and green building, accelerate the development of ultra-low energy building, new structural system building, assembly building, etc., can effectively promote China's construction industry to accelerate industrial upgrading, to ensure that the new round of construction in the field of science and technology revolution to catch up. Fourth, building energy efficiency and green building development work objectives and key tasks (a) work objectives The work objectives by 2020: First, to enhance the quality level of energy saving and green development, urban green buildings accounted for 50% of new buildings, urban energy efficiency of new buildings increased by more than 20%, and some cities began to implement the ultra-low-energy standards, and gradually synchronized with the international advanced standards to achieve the development. Secondly, we will realize efficient operation and refined management, complete the energy-saving renovation of old residential buildings with an area of 1 billion square meters, and reduce the heating energy intensity of renovated buildings by more than 35%. Completion of energy-saving renovation of 200 million square meters of public **** buildings, renovation of building energy efficiency by more than 20%. Third, the proportion of cleaner urban energy structure to achieve a breakthrough, the proportion of urban renewable energy consumption reached more than 13%. Fourth, the transformation of construction methods will be realized, and the level of greening and recycling of building materials will be improved. Fifthly, the market and industry of building energy efficiency and green building will be fully developed, giving full play to the fundamental role of market mechanism in allocating resources, driving the development of a number of new industries, and realizing breakthroughs in major key technologies. (II) Key Tasks 1. Control the increment and guide the growth pattern of urban energy and resource consumption. First, implement the building energy efficiency leader program. Issue a roadmap for upgrading China's building energy-efficiency standards, and clarify the medium- and long-term planning goals and upgrading plans for upgrading building energy-efficiency standards. Accelerate the process of upgrading the energy efficiency of new buildings, and implement a higher level of energy-saving standards as soon as possible. Urgently introduce building energy consumption standards with energy consumption as a constraint. Publicize advanced cities with building energy efficiency standards and encourage comparisons. Fully promote ultra-low-energy buildings and high-star green buildings, and encourage the planning and construction of near-zero-energy communities. Secondly, promote a comprehensive green building promotion program. Implement a target management mechanism for the promotion of green buildings, and break down the green building development targets set by the New Urbanization Plan (2014-2020) to each provincial administrative region. Supervise the provinces (autonomous regions and municipalities) to implement the annual green building development plan in the region, and establish a regular report and assessment system for green building progress. Implement the green building industry chain promotion program. Increase the scope of mandatory implementation of green building standards in areas where conditions are ripe. Strengthen the supervision of green building quality, and incorporate green building into the whole process of project management procedures such as planning, design, construction, completion and acceptance, etc.; strive for the implementation of the incentive policies of the central government in support of green building, and encourage the localities to introduce supporting financial incentives, volume rate rewards, reduction or exemption of supporting fees and other measures. Encourage some advanced regions to combine the construction of new districts and the transformation of old districts to build centralized demonstration zones for green buildings. Thirdly, compact green city demonstration construction is to be carried out. The planning and construction of new urban areas should strictly control the scale and structure of construction land. It is necessary to improve the efficiency of land utilization and establish a land layout with moderate mixed land use and compact development. Explore public **** transportation-oriented spatial layout patterns, and moderately increase the development intensity of public **** transportation-accessible plots. Rationally utilize underground space. Improve public **** transportation systems such as rail transit, rapid transit, public **** cars, and pedestrian and bicycle transportation systems. Build a green municipal system, synchronize the construction of sewage treatment facilities and supporting pipeline networks, realize full collection and treatment of sewage, and plan and build rainwater collection and recycled water utilization systems according to local conditions. Focus on the separate collection, transfer and harmless treatment of all kinds of garbage. 2. Optimize the stock and tap the potential of urban energy and resource consumption savings. First, promote energy-saving and green transformation of existing urban buildings. Comprehensively promote energy-saving renovation of existing buildings in cities in the northern region, and select conditional districts to carry out high-standard energy-saving renovation and green renovation. Comprehensively promote heat metering. Explore and pilot retrofitting technology routes in hot summer and cold winter areas that are in line with local climatic conditions and energy-use patterns. Comprehensively promote energy-efficiency comparison of public **** buildings, implement a dynamic management system for key energy-using public **** buildings, and announce advanced energy-efficiency standards for public **** buildings by region and type. Carry out pilot projects in key cities for energy-saving renovation of public **** buildings. Encourage the implementation of energy-saving renovation in market-oriented modes such as government-social capital cooperation (PPP). Carry out building energy efficiency comparison pilots in schools, hospitals and other public welfare sectors. The second is to promote urban (building) energy resources consumption comparison action. Comprehensively carry out surveys and statistics on energy resource consumption data in urban consumption areas, and monitor energy resource consumption in key areas and industries, and on this basis, establish a big data platform for urban building and transportation energy resource consumption information. Gradually improve the system of publicizing and ****enjoying information on urban energy resource consumption, and carry out data-based comparisons of the energy efficiency of urban buildings. Actively advocate green consumption patterns in urban life, vigorously carry out publicity activities on "Thrift and Virtue", and regularly release advanced models of "saving stars" in urban buildings. 3. Adjusting the structure to realize the clean development of urban energy resources consumption. First, the implementation of mandatory promotion of renewable energy in urban buildings. Cities should do a comprehensive survey of renewable energy resource conditions and utilization conditions, and prepare urban renewable energy application planning. New construction projects should be renewable energy application conditions, applicable types, application scale and effect of special demonstration, with the application of the conditions of the new building, should choose to apply at least one renewable energy. Increase the mandatory promotion of solar photovoltaic systems in urban low and medium-rise housing and hotels, schools and other public **** buildings with stable hot water demand. Second, promote personalized clean heating projects in the Yangtze River Basin. In the hot summer and cold winter areas of traditional non-heating zones, actively promote the use of air source, surface water source and sewage source heat pump technology for heating, and establish district-level urban micro-heating systems. Where conditions exist, the use of industrial waste heat to establish a centralized heating mode of cogeneration. The use of sea water source, river water source heat pump technology, at the end of the energy load to meet the requirements of the situation, according to local conditions, the establishment of regional renewable energy stations. Third, to create urban renewable energy distributed application system. The establishment of renewable energy and traditional energy coordination and complementary, graded utilization of integrated energy supply system, vigorously promote solar photovoltaic and other distributed energy, the establishment of urban renewable energy micro-grid system, the realization of distributed energy and intelligent scheduling fully integrated. In areas not covered by city gas, promote the use of biogas technology for sewage plant sludge preparation. 4. Change the mode and promote the transformation and upgrading of urban construction mode. First, vigorously promote the modernization of the construction industry. Vigorously develop assembly building industrialization bases and leading enterprises. Starting from key cities, gradually increase the proportion of homes delivered with fine decoration. Second, encourage the development of modern wood and steel structure buildings. Study and formulate necessary incentive policies. Strengthen the research and development, popularization and application of relevant technologies. Accelerate the construction of national wood-frame and steel-frame residential industrialization bases. Third, comprehensively promote recycled building materials and green building materials. Strengthen the management of building demolition. Steadily increase the recycling rate of building materials prepared from construction waste and industrial and mining solid waste. Establish a green building materials evaluation and labeling system. 5. Innovate the system and strengthen the supporting role of market, industry and technology. First, play the fundamental role of the market mechanism. Reasonably define the boundaries of the government and the market, not only to give full play to the government's administrative functions and planning, standards, finance, taxation and other measures to regulate the role of the market to give full play to the fundamental role of the market, the use of ppp mode, contract energy management, energy efficiency trading, carbon trading and other market-based mechanisms, so that enterprises can fully participate in all areas of urban energy and resource conservation, forming a good mechanism for the government to guide, enterprises to participate in the market to promote. Form a good mechanism of government guidance, enterprise participation and market promotion. Secondly, focus on the supporting role of emerging industries. In promoting the urban energy and resource consumption revolution, vigorously guide the energy conservation and environmental protection industry, new energy industry, information technology industry, new material industry, new building structure industry, third-party consulting and service industry, etc., actively build relevant industrialization bases, support relevant enterprises to promote the overall development of the industry chain, and promote the standardization, engineering and industrialization of new technologies and products. Support qualified enterprises to apply for the construction of national engineering research centers to promote the industrialization of achievements. Third, highlight the leading role of technical standards. Improve the standard, technology and index system for green and low-carbon consumption of urban energy resources. Formulate standards for ultra-low-energy buildings, green buildings, and green ecological urban areas in different climate zones and different functional positions. Classify and formulate standardized quotas for energy consumption in the whole life cycle of buildings. Relying on platforms such as the National Science and Technology Support Program, promote the research and development and integrated demonstration of major key technologies such as new building materials and assembled structural systems, near-zero-energy buildings, green building technologies, and technologies for the integrated application of renewable energy and distributed energy. Focusing on building energy efficiency and green building professionals, explore the establishment of professional qualification systems such as building energy manager and building energy efficiency evaluator. Actively carry out international cooperation, build an intergovernmental cooperation platform, and absorb and learn from international advanced experience in urban planning, construction, operation and management, and industrial development.

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