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Decomposition Analysis of Energy Consumption Changes of Municipalities in China

Jinling FEI, Hiroki TANIKAWA, Tao HUANG, Sradhanjali MOHANTY and Hidefumi IMURA （Nagoya University）

Abstract:
We conducted an index decomposition analysis of total energy consumption during 1995-2008 in four Chinese municipalities to identify which factors affected consumption. The results revealed three main findings. (1) Urban sprawl and economic growth increased total energy consumption in all Chinese municipalities studied. The area of urban expansion in Beijing grew by almost 2.27 times during this period, but this was only half the increase in area observed in Chongqing. Economic growth was the greatest acceleration factor for energy consumption, which increased by 61.2% in Beijing, 57.6% in Tianjin, 68.0% in Shanghai, and 67.7% in Chongqing. (2) Urban density, urbanization, and changes in energy intensity helped reduce energy consumption. The energy-intensity effect was a main contributor to the reduc-tion in energy consumption and helped to reduce energy use during this period by 3074 × 10,000 ton standard coal equivalent (TCE) in Beijing, 2484 × 10,000 TCE in Tianjin, 3588 × 10,000 TCE in Shanghai, and 1261 × 10,000 TCE in Chongqing. (3) Generally, the Chinese economic structure, which is shifting toward less energy-intensive sectors, is reducing energy consumption.

Key Word:
Chinese cities, energy consumption changes, index decomposition analysis

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