From August 1st, the energy -saving design of civil buildings in Chengdu must abide by these regulations

The reporter learned from the Chengdu Housing and Urban Construction Bureau today that starting August 1, 2022, the city and towns that have obtained the construction drawing review or complete the self -examination commitment have been established, expanded, and rebuilt civil buildings in the city. The main points of review (2022) "(hereinafter referred to as" Guidelines and Points ").

The "Guidelines and Points" include the "Guidance of Chengdu Residential Building Energy Conservation Design", "Guidance of the Energy Conservation Design Guidance for Public Building in Chengdu" and "Chengdu Civil Building Energy Conservation Design Examination Key points".

The average energy saving rate of civilian buildings in Chengdu will reach 72%

The "Guidelines and Points" clearly states that the energy -saving design of newly built, expanded, and rebuild civil buildings in the administrative area of ​​Chengdu is applicable. The existing construction energy-saving transformation design can be implemented, and it should meet the requirements of the current national standards, "GB 55015-2021).

"Guidelines and Points" put forward higher requirements for upgrading the level of energy consumption and upgrading energy saving goals. The energy consumption of Chengdu residential buildings and public buildings will be reduced by 35%and 20%on the basis of the national energy -saving design standards implemented in 2016 respectively. The average energy saving rate of civil buildings in Chengdu reached 72%.

The solar system should be installed in the new public building

According to the requirements of the "Guide and Points", the new public building should be installed with a solar system. One or more solar systems can be adopted according to the actual situation of the project, and the following requirements can be used: the solar photovoltaic system, the roof installation of photovoltaic power generation area accounts for the total roof area of ​​the roof area The ratio should not be less than 30%; the proportion of living hot water provided by solar energy from solar energy is not less than 30%; solar heating systems, the proportion of heating calories provided by solar energy is not less than 25%.

When the new public building is distributed by the roof distributed photovoltaic, the ratio of the photovoltaic power generation area of ​​the roof can not be less than 30%of the total area of ​​the roof. The corresponding photovoltaic power generation area is arranged in the facade and other places to meet the requirements of this article.

The project can take sunshade measures, including off -event shading, medium -to -mid -shading, and fixed outer shading (including self -shading). Specific shading measures can be selected according to the actual situation, and after calculation, it meets the requirements of the Sun Heat Coefficient requirements stipulated in the "Chengdu Civil Architecture Energy Conservation Design Guidelines and Review Points (2022 Edition)" (2022 version) (residential buildings are divided into orientation and different requirements in winter and summer. Public buildings are divided into different requirements). When calculating the sun thermal coefficient, because the internal shading measures such as curtains and louver are not controlled, it is not calculated in the sun thermal coefficient.

Equipment and system of these buildings

To access the city's building energy consumption monitoring system

The "Guidelines and Points" proposes that in civil buildings, the following equipment and systems should be connected to the city's construction energy consumption monitoring system: the construction area is greater than or equal to 20,000 square meters of new, renovated (expanded) water, electricity, and gas of public buildings. Measurement equipment and systems and solar photovoltaic power generation metering devices; energy consumption monitoring equipment and systems set up by new civilian building electric vehicle charging systems.

Among them, public buildings with a construction area greater than or equal to 20,000 square meters generally refer to public buildings with a total building area (including underground construction area) of 20,000 square meters or more. In addition, in the red line of the same land, multiple buildings are scattered. Although the single building area is small, the use function is relatively consistent, the energy consumption is high, and the total construction area of ​​the project is 20,000 square meters or more. , Communication and transportation buildings are also included.

The "Guidelines and Points" put forward the requirements for the amount of energy conservation materials for the main building, and the statistics of the amount of energy -saving materials for major buildings are provided for data support for the carbon emission analysis of the entire life cycle of the building; , Requirements on the analysis of carbon emissions of civil buildings in Chengdu, and adding a template for the "Special Article of Building Carbon Emissions".

Chengdu Daily Jinguan News Reporter Yuan Hongwen/Picture Editor He Qixie Intern Editor Lu Yarui

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