Analysis of China's Building Energy Conservation and Interpretation of Related Policies

I. The rapid development of urbanization in China has promoted the continuous growth of energy demand.

China's development, the world's attention. China's urbanization, world attention. Over 30 years of reform and opening up in China, the city has developed rapidly and has experienced rapid development of urbanization. Over the past 30 years, China’s GDP has grown at an average annual rate of about 10%, the urbanization rate has increased by an average of 1 percentage point, and the urban population has grown at an average annual rate of more than 10 million. By the end of 2010, the level of urbanization has reached 47%.

The Outline of the 12th Five-Year Plan for China's National Economic and Social Development clearly stated: "We must adhere to building a resource-conserving, environmentally friendly society as an important focal point for accelerating the transformation of economic development methods. We must thoroughly implement the basic national policy of resource conservation and environmental protection, and conserve resources. ,Reduce the intensity of greenhouse gas emissions, develop a recycling economy, promote low-carbon technologies, actively respond to global climate change, and promote economic and social development in coordination with population environmental resources, and take the road of sustainable development.” “Suppression of excessive growth in high-energy-consuming industries , Pay special attention to energy conservation in industries, buildings, transportation, public institutions, etc., and strengthen the management of energy conservation by key energy-using units. “The urbanization level has been raised by 4 percentage points.” “The average annual growth rate of GDP is 7%.” Fossil energy accounts for 11.4% of primary energy consumption, energy consumption per unit of GDP is reduced by 16%, and GDP per unit of GDP is reduced by 17%.

In China’s economic and social development, energy conservation is a long-term strategic task. With the continuous development of industrialization, urbanization, and modernization, the total demand for energy will continue to increase, and the total amount of carbon dioxide emissions will continue to grow. The National Development and Reform Commission’s Energy Research Institute’s “2050 Low-Carbon Energy Development Road” research report states: “Under the baseline scenario, China’s energy demand will reach 2020 when per capita GDP exceeds US$15,000 (measured by purchasing power). 5.16 billion tons of standard coal; by the middle of this century to the level of moderately developed countries, the energy demand reached 7.74 billion tons of standard coal.” “In a low-carbon scenario, China’s total energy demand is controlled at 5.56 billion tons of standard coal in 2050. The total amount of CO2 emissions is 8.72 billion tons.” The basic conclusion of the research report is: “The growth of energy demand and carbon emissions in the industrial sector will gradually slow after 2035, and buildings and transportation sectors will gradually become the main source of growth in energy demand and carbon emissions. Contributors.” This is the energy situation facing China. In the process of sustained and rapid economic and social development in China, we have the right to development and we need to have room for emissions.

II. Overview and Development Trends of Energy Efficiency in China's Buildings China is the world's most populous country, and it is also a big country in energy production and energy consumption. Energy supply and energy security are of great significance to the development of China. In the energy consumption structure, "building energy consumption has accounted for 30% of China's total social energy consumption (Qiu Baoxing)." According to 2009 China's total energy consumption of 3.066 billion tons of standard coal, building energy consumption 920 million tons of standard coal. On July 5, 2010, UNEP released a Chinese version of "Architecture and Climate Change: Summary for Policy Makers" at the Shanghai World Expo. The report shows that the construction industry accounts for 30% of global greenhouse gas emissions and consumes 40% of global energy.

With the rapid development of urbanization in China and the continuous improvement of people’s living standards, the total energy consumption of buildings will continue to increase. Such a huge energy consumption is directly related to the country’s energy supply and energy security. Therefore, doing a good job in building energy conservation and reducing energy consumption per unit of building area is a contribution to saving energy, protecting the environment, coping with global climate change, and promoting sustainable economic and social development in the country.

China has already done a lot of effective work in building energy efficiency and achieved positive results. China’s building energy efficiency has been implementing a 30% energy saving standard since 1986, and it has gradually implemented a 50% energy saving standard since 1995. At present, 65% of energy-saving design standards are implemented in some regions.

During the "11th Five-Year Plan" period, substantial progress was made in building energy conservation. According to the “People’s Daily” report on June 21, 2010: “As of the end of 2009, the country’s cumulative energy-saving building area was 4.08 billion square meters, which could form an energy-saving capacity of 36 million tons of standard coal, which could reduce carbon dioxide emissions by 93.6 million tons per year; The heat measurement of existing buildings in the area and the transformation of the Zyns are progressing steadily. By the end of the heating season in 2009, the energy-saving reconstruction areas in the 15 provinces in the north totaled more than 100 million square meters.”

Despite this, there are still some contradictions and problems in China's energy efficiency in building construction. The main problems are: there are still a few new building construction standards that do not fully implement building energy conservation, the task of energy-saving reconstruction of existing buildings is very arduous, the efficiency of heating heating systems is not efficient, and building energy-saving technologies, products and materials can not meet the actual needs. The existence of these problems has awareness problems, technical problems, and management problems.

According to the historical stages of China's urban development and urbanization, and the actual situation of building energy conservation, we have identified key areas for building energy conservation in the coming period. The main ones are: to strengthen the supervision of new building energy conservation, and to strictly implement energy conservation standards for new buildings. Strengthen the existing energy-saving supervision and renovation of residential buildings, and continue to promote heating measurement reform. Strengthen the supervision of energy conservation in large-scale public buildings, promote the energy-saving transformation of high energy-consuming large-scale public buildings, and increase the efficiency of resource utilization. Promote the large-scale application of renewable energy in buildings. Actively promote the promotion and application of building energy-saving new materials and new products. Steadily promote the construction of rural energy-saving rural housing.

Promoting energy efficiency in buildings is an important part of achieving the overall goal of energy saving and emission reduction in the country. We will continue to take effective measures to strengthen building energy management. It is mainly to ensure that laws, regulations, standards and related policies for building energy conservation are implemented, to ensure effective implementation of plans and plans for building energy conservation, to ensure that new technologies for building energy conservation are applied and new products are promoted. For example, for energy saving in residential buildings, it is necessary to comprehensively consider building energy conservation from the whole process of painting, design, construction, use and maintenance, and dismantlement and reuse, and the whole life cycle of a house.

III. Significant achievements have been made in building energy-saving research. Policies, standards, and laws and regulations have continuously improved China's building energy-saving began in the 1980s. In March 1986, the "Civil Building Energy Efficiency Design Standards (Heating Part of Residential Buildings)" was released, and the building energy saving rate target is 30%. That is, the energy consumption of newly-built heating residential buildings should be the general design heat consumption level of local houses from 1980 to 1981. Lower on the basis of.

In 1994, the Ministry of Construction formulated the "Ninth Five-Year Plan for Building Energy Efficiency" and the 2010 Plan. Established energy saving goals, priorities, tasks, implementation measures and steps. Revise the "Civil Building Energy Efficiency Design Standards (Heating Part of Residential Buildings)", and the target for building energy efficiency is 50%.

In September 1996, the Ministry of Construction held a national conference on building energy efficiency. In the nationwide deployment of building energy-saving work, implementation of building energy-saving 50% of the standard.

In 1999, Ministry of Construction Order No. 76 issued the “Regulations on Energy Conservation for Civil Buildings”. It will be implemented as of October 1, 2000. The regulations stipulate the various tasks and contents of building energy conservation, as well as the responsibilities of the relevant responsible entities, and the forms and standards of violations. The implementation of this regulation has played an active role in strengthening the energy-saving management of civil buildings, improving the efficiency of resource utilization, and improving the indoor thermal environment.

The Decree No. 143 of the Ministry of Construction in 2005 promulgated the “Administrative Regulations on Energy Conservation for Civil Buildings”. It will be implemented as of January 1, 2006.

On June 1, 2006, the “Green Building Evaluation Standard” was implemented. This is to implement the basic national policy of saving resources and protecting the environment, promoting sustainable development, and standardizing the evaluation of green buildings. The standard defines the terms of green building and heat island intensity and establishes a green building evaluation index system.

In September 2006, the Ministry of Construction issued and issued the "Implementation Opinions of the Ministry of Construction on Implementing the Decision of the State Council on Strengthening Energy-saving Work," and determined that building energy conservation should reach the end of the "11th" period and achieve the goal of saving 110 million tons of standard coal. Began to organize the implementation of the "Eleventh" science and technology support program "building energy-saving key technology research and demonstration" and other topics of research.

The Resource Conservation Law was enacted in November 1997, amended in October 2007, and implemented on April 1, 2008. Article 4 of the "Save Resources Law" clearly stipulates: "Saving resources is the basic national policy of our country. The state implements the energy development strategy that combines conservation and development, and gives top priority to energy conservation." The law stipulates energy conservation management, rational use, and resource conservation. Energy-saving technological progress, incentive measures, and legal responsibilities have made clear provisions. With regard to building energy conservation, Article 35 of the Law states: "The construction, design, construction and supervision units of construction projects shall abide by the building energy-saving standards. Construction projects that do not meet the building energy-saving standards shall not approve the start of construction; construction has already begun. If construction is completed, it shall be ordered to stop construction and be corrected within a time limit; if it has already been built, it shall not be sold or used. The competent department of construction shall strengthen the supervision and inspection of the implementation of building energy conservation standards for the construction projects under construction."

Article 40 stipulates: “The state encourages the use of energy-saving building materials such as new wall materials and energy-saving equipment in the construction of new buildings and existing buildings, and the installation and use of renewable energy systems such as solar energy.”

The “Civil Building Energy Conservation Regulations” was passed on July 23, 2008 at the 18th executive meeting of the State Council and implemented on October 1, 2008. The regulations have made clear provisions for the energy saving of new buildings, the energy efficiency of building construction, the energy efficiency of construction energy systems, and legal responsibilities. The regulations clarified that residential buildings, office buildings of government offices, and other public buildings such as commerce, service, education, and health are civil buildings.

With regard to the new building energy conservation, the regulations stipulate that the urban and rural planning authorities shall review the civil construction according to law, and shall not issue a construction project planning permit for any building that does not meet the mandatory standards for building energy conservation. The construction drawing design document review agency shall review the construction drawing design documents in accordance with the mandatory standards for civil building energy conservation; if the review does not meet the compulsory standards for civil building energy conservation, the construction authority of the local people's government at or above the county level shall not issue a construction permit. The design unit, construction unit, project supervision unit and its registered practitioners shall design, construct and supervise in accordance with the mandatory standards for civil building energy conservation. The construction unit shall inspect the wall materials, insulation materials, doors and windows, heating and refrigeration systems and lighting equipment that enter the construction site; if it does not meet the requirements of the construction drawing design documents, it shall not be used. The construction unit shall, upon completion and acceptance, examine whether the civil building complies with the mandatory standards for civil building energy conservation; and if it does not meet the compulsory standards for civil building energy conservation, it shall not issue a completion acceptance report.

With regard to energy conservation in existing buildings, the Regulations stipulate that the retrofitting of existing buildings should be carried out in a planned and step-by-step manner according to the actual conditions of the local economy, social development level, and geography and climate.

The Regulations on Energy Saving in Public Institutions was passed by the 18th Executive Committee of the State Council on July 23, 2008 and implemented on October 1, 2008. The regulations provide clear regulations for energy-saving planning, energy-saving management, energy-saving measures, supervision and safeguards of public institutions.

On August 6, 2006, the State Council issued the "Decision of the State Council on Strengthening Energy Conservation." The decision emphasizes that it is necessary to fully understand the importance and urgency of strengthening the energy conservation work, guide the energy conservation work with the scientific concept of development, accelerate the establishment of an energy-saving industrial system, focus on energy conservation in key areas, vigorously promote energy-saving technological advancement, and increase efforts to establish energy-saving supervision and management. We will improve the energy conservation protection mechanism and strengthen the building of energy management management team and basic work.

On May 23, 2007, the State Council issued the "Circular of the State Council on Printing and Distributing Comprehensive Energy Conservation and Emission Reduction Work Plan." The notice emphasized that the importance and urgency of energy-saving and emission-reduction work should be fully recognized, and the implementation of energy-saving emission reduction responsibilities and law enforcement supervision should be vigorously promoted, and a strong leadership mechanism for energy-saving and emission-reduction should be established. Regarding building energy efficiency, the program pointed out: “Strengthening management of building energy conservation. Promote energy-saving and environment-friendly buildings. Intensify the entire process of supervision and management of the implementation of energy consumption limit standards for new buildings, and implement special evaluation of building energy consumption, for buildings that do not meet standards, It is forbidden to apply for the record-breaking and start-up acceptance of archival filing procedures, and no sale is allowed; starting from 2008, all new-commercial house sales must include information such as energy consumption and energy conservation measures in sales contracts and other documents, and establish and improve the supervision of energy-saving operations in large-scale public buildings. The system will deepen the reform of heating systems and implement heat metering and charging. This year, efforts will be made to implement the supervision of the implementation of the energy consumption quota standard for the new construction period. Cities in prefecture-level and above cities in the northern regions will complete heating-subsidy subsidies and covertly The demonstration cities and provinces resumed the energy consumption statistics, energy audits, energy efficiency announcements, and energy efficiency rating systems for large-scale public buildings, and achieved energy savings of 12.5 million tons of standard coal.

On June 1, 2007, the General Office of the State Council issued the "Notice of the General Office of the State Council Concerning the Strict Implementation of Temperature Control Standards for Air-conditioning in Public Buildings." The notification clearly states: “All units in public buildings, including state agencies, social organizations, enterprises and individual industrial and commercial households, except for special units such as hospitals and users who have specific requirements for temperature and approved by the production process, The indoor air conditioning temperature setting in summer should not be less than 26 degrees Celsius, and the indoor air conditioning temperature setting in winter should not be higher than 20 degrees Celsius."

The Ministry of Housing and Urban-Rural Development has issued a series of implementation documents and other related documents to implement the national laws and regulations on energy conservation, emission reduction and building energy conservation, which has played a positive role in promoting energy conservation, emission reduction and building energy conservation.

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