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Which activities contribute most to building energy consumption in China? A hybrid LMDI decomposition analysis from year 2007 to 2015

Lu, Yujie ; Cui, Peng ; Li, Dezhi

Energy and buildings, 2018-04, Vol.165, p.259-269 [Periódico revisado por pares]

Lausanne: Elsevier B.V

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  • Título:
    Which activities contribute most to building energy consumption in China? A hybrid LMDI decomposition analysis from year 2007 to 2015
  • Autor: Lu, Yujie ; Cui, Peng ; Li, Dezhi
  • Assuntos: Building and construction industry ; Buildings ; China ; Construction ; Construction industry ; Construction materials ; Decomposition ; Decomposition analysis ; Energy changes ; Energy consumption ; Energy policy ; Energy utilization ; Geographical distribution ; Logarithmic Mean Divisia Index (LMDI)
  • É parte de: Energy and buildings, 2018-04, Vol.165, p.259-269
  • Descrição: •Decompose building energy changes in China into 3 life cycle phases and 5 effects.•Most of energy changes were caused by area effect, followed by energy intensity.•Material production contributed most to energy changes during life cycle phase.•Eastern region created more than 41% of energy changes in China. This paper proposed a hybrid Logarithmic Mean Divisia Index (LMDI) model that decomposes the change of total energy consumption (TEC) in the building sector to three different dimensions: 1) key influencing effects that include area effect, structure effect, population intensity, value intensity, and energy intensity; 2) three phases that include material production, construction, and operation; and 3) geographically distributed regions. Then, the model was validated in China's building sector based on the data collected from 30 provinces during 2007–2015. The key findings show that: (1) the increased final energy consumption in the building industry accounted for 53.3% of that in China. (2) Building material production contributed the most (69.2%) to the energy changes, followed by building operation (29.6%) and construction (1.2%). (3) The change of TEC was attributed the most to the area effect (90.4%) and the energy intensity effect (42.4%). (4) Zhejiang, Jiangsu, Hubei, Hebei, Fujian and Shandong contributed the most (47%) to the increase of China's building energy use. These findings provide an insightful understanding of the building energy changes and also a quantifiable justification for making building-specific energy policies, which are discussed at the end of the study.
  • Editor: Lausanne: Elsevier B.V
  • Idioma: Inglês
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