the role of environmental management capacity on energy ... · the role of environmental management...
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The Role of Environmental Management Capacity on Energy
Efficiency: Evidence from China’s Electricity Industry
Katsuya Tanaka,Manami Suga,
Shunji MatsuokaHiroshima University, Japan
and
Chazhong GeChinese Academy for Environmental Planning, China
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Environmental Management Capacityin the U.S. Electricity Industry
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Environmental Management Capacityin the U.S.
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Environmental Management Capacityin the U.S. Electricity Industry
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Environmental Management Capacityin the U.S. Electricity Industry
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Environmental Management Capacityin the U.S. Electricity Industry
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Environmental Management Capacity
Efforts toward environmental protection through:
• Monitoring• Administrative management
by the Government and Firms
Introduction
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Objective
1. Estimate energy efficiency in China’s electricity industry
2. Identify factors affecting energy efficiency
Introduction
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Outline
1. Introduction2. Model3. Results4. Summary and Policy Implications
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1. Introduction
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Energy Consumption in China
Heavy reliance on coal• 25% of the world total
• still in rapid increase
Introduction
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China’s Electricity Industry
The Biggest Coal Consumer• 54% of the total Nation's coal consumption
(733 million tons)
Main Air Polluter• 30% of total SO2 emission in the Nation
Coal Consumption Increasing Rapidly• 1,090 million tons in 2010• 1,350-1,500 million tons in 2020
Inefficient Use of CoalEnergy Efficiency = Input Coal-Use Efficiency
Introduction
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Keys for Energy-Efficiency Improvement
• Input (coal) price control• R&D for efficient technology• Developing Environmental
Management Capacity
Introduction
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2. Model
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2-Stage Empirical Model
1st Stage:Estimate energy efficiency�Time-Varying Decay Stochastic Frontier Model
2nd Stage:Identify factors affecting energy efficiency�Fixed-Effects Tobit Model
Model
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Energy EfficiencyModel
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Energy EfficiencyModel
RZZ)
==Use-Coal Observed
Use-Coal PracticeBest EfficiencyEnergy
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Data
Panel Data: 30 provinces from 1998 to 2002
Firm-Level Data:
• Output (in Yuan)• Capital (annual value of fixed assets)• Input coal use• Environmental Management Capacity by firms
- # of environmental management staff- # of environmental administrative staff
Source: Survey data by former State Power Corporation of China(Compiled by Chinese Academy for Environmental Planning)
Model
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Data
Other Data for 2nd Stage Analysis
Province-Level Background Characteristics
• Gross product per capita• Electricity consumption• Fuel price• Environmental management capacity by government
- # of monitoring and management stations
Source: Chinese Statistical YearbookChinese Environmental Yearbook
Model
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3. Results
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1st Stage:The Estimated Energy Efficiency
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1998 1999 2000 2001 2002
Year
Ene
rgy
Effi
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Nation Average
Results
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2nd Stage:Factors Affecting Energy Efficiency
VariableStandard
ErrorStandard
Error
Constant 0.110 *** 0.015
Province-level Background CharacteristicsGross product per Capita 0.041 *** 0.003 0.076 *** 0.006Electricity consumption 0.000 *** 0.000 0.077 *** 0.009Fuel price 0.002 *** 0.000 0.506 *** 0.031
Firm-specific Operational CharacteristicDummy for large-scale firms 0.039 *** 0.004 0.008 *** 0.001
Government Environmental Management Capacity# of monitoring and management station 0.000 *** 0.000 0.092 *** 0.010
Firms' Environmental Management Capacity# of monitoring staff -0.001 0.001 -0.003 0.005# of management staff 0.004 *** 0.001 0.012 *** 0.003
ρ 0.905 *** 0.004
n 1001χ2 1992.0Log-likelihood Ratio 0.790
Coefficient Elasticity
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The Estimated Energy Efficiencyby Region
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1998 1999 2000 2001 2002
Year
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Effi
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CoastCentralWest
Results
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The Estimated Energy Efficiencyby Firm-Size
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1998 1999 2000 2001 2002
Year
Ene
rgy
Effi
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LargeMediumSmall
Results
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The Estimated Energy Efficiency by Environmental Management Capacity by the Government
Results
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1998 1999 2000 2001 2002
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LowHigh
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The # of Firms by Region and Size
Large 15 0 0 15Medium 38 20 6 64Small 40 47 44 131
Total 93 67 50 210
Coast
Firm Size
RegionCentral West Total
Results
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4. Summary andPolicy Implications
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Summary
• Significant increase in energy efficiency
• Significant variation in energy efficiency by:- Region- Firm-size- Environmental Management Capacity
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Policy Implication
• Target small and medium firms in Central and Western Regions
• Developing Environmental Management Capacity�Both government and firms
• Further technical assistance by foreign donor countries
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Next Steps
• Data Improvement• International Comparison between U.S. and China
(Joint Study with U of Texas at Austin)
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This study is funded by the 21st Century Center of Excellence (COE) Program “Social Capacity Development for Environmental Management
and International” at the Hiroshima University, Japan