中国电力系统环境效率研究:考虑松弛变量的网络DEA视角
2016-01-18邓英芝
中国电力系统环境效率研究:考虑松弛变量的网络DEA视角
邓英芝
(天津大学管理与经济学部,天津300072)

摘要:电力系统的环境效率变化直接影响中国节能减排目标的实现,文章采用基于松弛变量的网络数据包络分析模型(slack based measure-network data envelopment analysis:SBM-NDEA)研究30个省级行政区域(未包括港澳台和西藏)电力系统环境效率变动情况。通过对运算结果的分析发现:由于考虑了发电部门和输配部门间的竞争合作关系,SBM-NDEA模型结果的区分度更高,比传统模型更适用于电力系统效率评价;是否将上网电量作为输入对评价结果影响很大;加强对中西部电力输出地区的转移支付,有利于实现电力系统的调度优化。
关键词:非理想产出;网络DEA模型,电力系统;环境效率
收稿日期:2015-07-15修回日期:2015-10-20
基金项目:国家自然科学基金项目(71373172,71003072);国家发改委清洁发展机制基金项目(2012023);住房与城乡建设部项目(11-R1-338)
作者简介:邓英芝(1979-),女,山东聊城人,天津大学管理与经济学部讲师,硕士,研究方向:信息管理与信息系统,能源政策与管理。
中图分类号:F224.7
文献标识码:A
文章编号:1002-9753(2015)11-0145-10
Abstract:The environmental efficiency ofChina’s power system is very important for achieving its energy saving and carbon emission reduction goals.This study employs a two-stage slack-based measure-network data envelopment analysis (SBM-NDEA)model to evaluate the environmental efficiencies of China’s power systems and the effects of related policy reforms.Thirty provincial administrative regions (PARs)are taken as decision making units (Taiwan,Hong Kong,Maocao and Tibet are not included due to data availability).The empirical analysis reach the following conclusions.First,compared with the traditional SBM-DEA,the network model does better in evaluating the environmental efficiency of the power systems as it can take the cooperation and competitive situation between generation and grid division into consideration.Second,whether on-grid power is taken as inputs will greatly affect the efficiency results.Finally,to strengthen the financial payment transfer policies for Midwest regions will help to optimize the national power dispatch.

Environmental Efficiency Evaluation on China’s Power Systems:
Perspective of Slack Based Network DEA
DENG Ying-zhi
(CollegeofManagementandEconomics,TianjinUniversity,Tianjin300072,China)
Key words:Undesirable outputs;slack based measure;power systems;network DEA;environmental efficiency.
一、 引言
中国政府在2009年底的哥本哈根气候峰会上提出了2020年单位GDP碳排放要在2005年基础上下降40%~45%的目标;并于2014年中美气候变化峰会期间进一步做出2030年左右二氧化碳排放总量达到峰值且将努力早日达峰的承诺。要实现这一宏伟目标,需要各行业的统筹安排。电力系统占中国碳排放总量的49%[1],是产生碳排放最多的生产部门,且随着现代化程度的提高,经济发展对电力的依赖将越来越大,预计电力系统造成的碳排放将会进一步增长。……
