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According to industry insiders, this means that the huge market for building energy efficiency has slowly begun, and a huge market of trillions of yuan will be accelerated.
The reconstruction area is at least 3.5 billion square meters. There is a large amount of residential buildings in the cities and towns in China. According to incomplete statistics, only 3.5 billion square meters of existing residential buildings in the northern heating district are needed and are worth saving. These buildings have been built and used for 20 years to 30 years. They have high energy consumption and poor living comfort. Many buildings in the heating season have less than 10°C indoor temperature, and there are phenomena such as mildew, damage to buildings, and the construction of a well-off society in China. The goal is not quite the same.
A person from the Ministry of Housing and Urban-Rural Development said that the existing building energy-saving reforms, especially in the cold and cold regions (also known as the northern heating areas), are both energy-saving renovations of residential buildings, and are an important part of the current and future period of building energy-saving work, saving energy and improving It is of great significance for the indoor thermal environment, reducing greenhouse gas emissions, and promoting the transformation of the development mode of housing for urban and rural construction and sustainable economic and social development.
To this end, the Ministry of Housing and Construction and the German government have jointly organized the Sino-German technical cooperation "Energy Conservation Reconstruction Project for Existing Buildings in China" from 2005 to 2011, and successively constructed about 100,000 square meters of 28 buildings in Tangshan, Beijing, Urumqi and Taiyuan. Meters have a demonstration of comprehensive energy-saving renovation of residential buildings. And on the basis of summing up the experience of demonstration projects, it has compiled and published the "Guide".
Industry insiders pointed out that as the guideline proposes targeted solutions for specific operational details, its introduction means that a huge market for building energy efficiency has officially opened. According to the 3.5 billion square meters of renovation area, this market will reach trillions in size.
The “Guidelines†highlights the four major aspects of energy saving transformation. There are four aspects of energy saving transformation, namely the insulation and renovation of external walls, roofs, external doors and windows, etc.; the heating measurement of household heating and the temperature control of the sub-room Energy-saving transformation of heat sources (boiler room or heat station) and heating pipe network; comprehensive energy-saving renovation involving building repair, function improvement and adoption of renewable energy.
Among the many reforms, external wall insulation is an important part of improving building energy efficiency. According to the calculations of professional organizations, at present, in the energy loss of housing in China, the wall portion is as high as 50%, and the proportions of roofs, doors, windows and floors are respectively 10%, 25%, and 15%.
In fact, as early as in 2008, the Ministry of Housing and Urban-Rural Development issued the “Implementation Opinions on Promoting Heating Measurement and Energy Saving Reconstruction of Existing Residential Buildings in Northern Heating Areasâ€, specifying that there are existing heat measurement and energy-saving renovations for residential buildings in northern heating areas. The need for funds is mainly resolved by means of self-raising by enterprises, investment in social funds, and investment by beneficiaries.
It is this particularity that has caused many buildings to be renovated. For this reason, in the aspect of fund raising, the "Guidebook" gives the countermeasures that the funds for energy-saving renovation should be jointly borne by the parties concerned, such as households, heating units, and homeowners' property rights units.
The "Guide" also mentions that social funds are encouraged to invest in energy-saving reforms using the contract energy management model. Encourage exploration and use of clean development mechanisms and carbon trading to open up channels.
Ministry of Housing and Urban-Rural Development: Initiating Energy-saving Reconstruction of Existing Buildings
The Ministry of Housing and Urban-Rural Development recently issued the “Guidance on Energy-saving Retrofitting of Existing Residential Buildings†and requested the energy-saving reconstruction of existing residential buildings from the aspects of exterior wall roofs, heating systems, heating pipe networks, and comprehensive energy conservation.