Total-factor energy efficiency of regions in China
Total-factor energy efficiency of regions in China
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DOI：
10.1016/j.enpol.2005.06.015
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发表时间：
2006-11-01
期刊：
影响因子：
9
通讯作者：
Wang, Shih-Chuan
中科院分区：
文献类型：
--
作者：
Hu, Jin-Li;Wang, Shih-Chuan
本文引入一个新的能效指数，对1995年-2002年中国29个行政区的能源效率进行了分析。现有的大多数关于区域生产率和效率的研究都忽视了能源投入。运用数据包络分析方法，找出中国各地区在每个特定年份的目标能量投入。然后，全要素能源效率指数(TFEE)将目标能源投入除以实际能源投入。在我们的DEA模型中，劳动力、资本存量、能源消耗和作为生物质能源替代品的农作物总播种面积是四个投入，实际GDP是单一产出。计算了传统能源生产率作为部分因素的能效指标，并与TFEE进行了对比，发现该指标更符合实际情况。根据TFEE指数排名，中国中心区能效最差，其调整的能耗总量占中国总能耗的一半以上。在研究期间，除西部地区外，中国地区的区域TFEE总体上有所改善。中国地区的TFEE与人均收入之间存在U型关系，证实了能源效率最终会随着经济的增长而提高的假设。(C)2005爱思唯尔有限公司。保留所有权利。
This paper analyzes energy efficiencies of 29 administrative regions in China for the period 1995-2002 with a newly introduced index. Most existing studies of regional productivity and efficiency neglect energy inputs. We use the data envelopment analysis (DEA) to find the target energy input of each region in China at each particular year. The index of total-factor energy efficiency (TFEE) then divides the target energy input by the actual energy input. In our DEA model, labor, capital stock, energy consumption, and total sown area of farm crops used as a proxy of biomass energy are the four inputs and real GDP is the single output. The conventional energy productivity ratio regarded as a partial-factor energy efficiency index is computed for comparison in contrast to TFEE; our index is found fitting better to the real case. According to the TFEE index rankings, the central area of China has the worst energy efficiency and its total adjustment of energy consumption amount is over half of China's total. Regional TFEE in China generally improved during the research period except for the western area. A U-shape relation between the area's TFEE and per capita income in the areas of China is found, confirming the scenario that energy efficiency eventually improves with economic growth. (c) 2005 Elsevier Ltd. All rights reserved.