scholarly journals Decomposition of Industrial Electricity Efficiency and Electricity-Saving Potential of Special Economic Zones in China Considering the Heterogeneity of Administrative Hierarchy and Regional Location

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5468
Author(s):  
Jianmin You ◽  
Xiqiang Chen ◽  
Jindao Chen
Keyword(s):  
Energy Resource ◽  
Guizhou Province ◽  
Data Envelopment ◽  
Special Economic Zones ◽  
Electricity Use ◽  
Industrial Energy ◽  
Regional Location ◽  
Use Efficiency ◽  
Electricity Saving ◽  
Economic Zones

Special Economic Zones (SEZs), an important engine of industrial economic development in China, consume large amounts of energy resources and emit considerable CO2. However, existing research pays little attention to industrial energy usage in SEZs and ignores the heterogeneity of administrative hierarchy and regional location. Considering the dual heterogeneity, this study proposes an improved two-dimension and two-level meta-frontier data envelopment analytical model to decompose the industrial electricity efficiency (IEE) and electricity-saving potential of SEZs in Guizhou Province, China, based on 4-year field survey data (2016–2019). Results show that the IEE rankings of three administrative hierarchies within SEZs are provincial administration SEZs, county administration SEZs, and municipality administration SEZs. The SEZs located in energy resource-rich areas and better ecological environmental areas have higher IEE than those in resource-poor areas and ecology fragile areas, respectively. This study can provide reference for policymakers to formulate effective policies for improving the electricity use efficiency of SEZs in China.

scholarly journals Saving energy in China’s industry with a focus on electricity: a review of opportunities, potentials and environmental benefits

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Hui Yue ◽  
Ernst Worrell ◽  
Wina Crijns-Graus ◽  
Wen Liu ◽  
Shaohui Zhang
Keyword(s):  
Energy Savings ◽  
Energy System ◽  
Electricity Demand ◽  
Environmental Benefits ◽  
Power Sector ◽  
Ferrous Metals ◽  
Electricity Use ◽  
Industrial Energy ◽  
End Use ◽  
Electricity Saving

AbstractIndustry is the largest electricity consuming sector in the world. China consumes about 25% of global electricity demand, and 69% of this is used in industries. The high electricity demand in industry is responsible for 45% of CO2, 25% of SO2, 34% of NOx and 14% of PM emissions in China. This study aims to fill the knowledge gap on the potential for electricity savings in China’s industries, thereby providing important implications for the potential of reducing emissions in electricity-intensive industrial subsectors in general. Available studies are reviewed and compared to identify electricity-saving potentials. The findings show that China’s industrial energy system is shifting to higher electricity and relatively lower fossil fuel use due to accelerated end-use electrification. China’s industry can reduce electricity use by 7–24% in 2040, compared to baseline levels, and generate emission reductions of 192–1118 Mt-CO2, 385–2241 kt-SO2, 406–2362 kt-NOx and 92–534 kt-PM2.5. The iron & steel subsector has the largest contribution to the industrial electricity savings, followed by non-ferrous metals, chemicals, cement and pulp & paper. Policies that combine environmental targets, demand-side efficiency and supply-side retrofits in the power sector should be adopted. Given the different performance of policies in terms of energy savings and emission reduction, sector- and region-specific policies would be preferred.

scholarly journals Land-Use Change and Efficiency in Laos’ Special Economic Zones

Land ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1012
Author(s):  
Dongxue Li ◽  
Xingping Wang
Keyword(s):  
Land Use ◽  
Information Entropy ◽  
Structural Evolution ◽  
Gray Relational Analysis ◽  
Land Use Intensity ◽  
Special Economic Zones ◽  
Land Use Efficiency ◽  
Medium Intensity ◽  
Use Efficiency ◽  
Economic Zones

Special economic zones (SEZs) are important in Laos due to their ability to attract foreign investment, realize industrialization, and promote economic globalization. Based on Laos’ SEZs in operation, this study explored land-use intensity, structural evolution and land-use efficiency in Laos’ SEZs via the land-use dynamic degree, information entropy, super-efficiency data envelopment analysis (DEA) and gray relational analysis (GRA). The study determined that the total land-use area in Laos’ SEZs continuously increased from 2014 to 2020. The land-use intensity changes in the SEZs can be divided into three types, i.e., high intensity, medium intensity and low intensity, and most SEZs belonged to the medium-intensity type. The proportion of land used in production systems in Laos’ SEZs increased the most, and the proportion of infrastructure land notably decreased. The overall information entropy of the land-use structure exhibited an initial downward and then an upward trend. In 2018, the land-use efficiency in the Savan-Seno SEZ, Vientiane Industrial and Trade Area, Dongphosy SEZ, and Golden Triangle SEZ was relatively optimal. The basic factors of the industrial space and the factors reflecting international cooperation attributes were highly related to the land-use efficiency in Laos’ SEZs.

Special Economic Zones

2011 ◽  
Author(s):  
Thomas Farole ◽  
Gokhan Akinci
Keyword(s):  
Special Economic Zones ◽  
Economic Zones

The Influence of Enterprises with Participation of Foreign Capital on the Labour Market Situation in Poland

2016 ◽  
Vol 11 (1) ◽  
pp. 45-57
Author(s):  
Dorota Sobol
Keyword(s):  
Labour Market ◽  
Foreign Capital ◽  
Foreign Direct Investments ◽  
Special Economic Zones ◽  
Labour Market Situation ◽  
Market Situation ◽  
Scientific Project ◽  
The Individual ◽  
Economic Zones

The aim of the article is to present the influence on the labour market of enterprises with participation offoreign capital in special economic zones (SEZ) in Poland. The research utilised selected results of the surveys conducted among enterprises with participation of foreign capital operating in all Polish special economic zones for the scientific project called Foreign direct investments in the special economic zones of Poland'. These findings are complemented by opinions from management boards of all the zones in Poland concerning the influence of the foreign direct investments (FDI) located in the individual zones on the labour market of the region in which they operate.

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