4.6 Article

Carbon Neutral Roadmap of Commercial Building Operations by Mid-Century: Lessons from China

Journal

BUILDINGS
Volume 11, Issue 11, Pages -

Publisher

MDPI
DOI: 10.3390/buildings11110510

Keywords

commercial building; emission abatement; emission peak; carbon neutral strategy; dynamic scenario analysis

Funding

  1. China Postdoctoral Science Foundation [2020M680020]
  2. Shuimu Tsinghua Scholar Program of Tsinghua University [2019SM139]
  3. National Planning Office of Philosophy and Social Science Foundation of China [21CJY030, 18BJL034]
  4. Fundamental Research Funds for the Central Universities of China [2020CDJSK03YJ07]

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This study provides a detailed data analysis and carbon neutral roadmap for step-wise carbon neutrality of commercial building operations through the analysis of dynamic emission scenarios. The results show that the carbon emissions of commercial building operations will peak in 2039, requiring an additional 169.73 Mt CO2 to be cut to achieve carbon neutrality. It is suggested that a multi-sectoral synergistic strategy is needed, with a better understanding of the challenges and urgent action required in the building sector to achieve carbon neutrality.
Carbon neutrality has positive impacts on people, nature and the economy, and buildings represent the last mile sector in the transition to carbon neutrality. Carbon neutrality is characterized by the decarbonization of operations and maintenance, in addition to zero emissions in electricity and other industry sectors. Taking China's commercial buildings as an example, this study is the first to perform an extensive data analysis for a step-wise carbon neutral roadmap of building operations via the analysis of a dynamic emission scenario. The results reveal that the carbon emissions abatement of commercial building operations from 2001 to 2018 was 1460.85 (+/- 574.61) mega-tons of carbon dioxide (Mt CO2). The carbon emissions of commercial building operations will peak in the year 2039 (+/- 5) at 1364.31 (+/- 258.70) Mt, with emission factors and energy intensity being the main factors influencing the carbon peak. To move toward carbon neutral status, an additional 169.73 Mt CO2 needs to be cut by 2060, and the low emission path toward carbon neutrality will lead to the realization of the carbon peak of commercial buildings in 2024, with total emissions of 921.71 Mt. It is believed that cutting emissions from the operation of buildings in China will require a multi-sectoral synergistic strategy. It is suggested that government, residents, enterprises, and other stakeholders must better appreciate the challenges to achieve a substantial carbon reduction and the need for urgent action in the building sector in order to achieve carbon neutrality.

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