scholarly journals La evolución de la intensidad energética de la industria vasca entre 1982 y 2001: Un análisis de descomposición

2011 ◽  
Vol 4 (7) ◽  
pp. 63 ◽  
Author(s):  
Alberto Ansuategi ◽  
Iñaki Arto
Keyword(s):  
Time Series ◽  
Energy Intensity ◽  
Decomposition Analysis ◽  
Industrial Sector ◽  
Autonomous Community ◽  
Additive Decomposition ◽  
Iron And Steel ◽  
Index Decomposition ◽  
Industrial Energy ◽  
Steel Sector

In this article an index decomposition methodology is used to estimate the effect of intersectoral and intrasectoral changes in explaining the 38% reduction in industrial energy intensity in the Basque Autonomous Community from 1982 to 2001. Period-wise additive decomposition results show that 1) the decline is mainly explained by intrasectoral changes and that 2) intersectoral changes have hardly contributed to reduce the energy intensity of the Basque industrial sector. However, time-series decomposition analysis shows that 1) four different phases can be distinguished in the evolution of energy intensity of the Basque industry from 1982 to 2001 and 2) that the evolution of the «Iron and Steel» sector is determinant when explaining those phases. Moreover, the analysis stresses the necessity to disaggregate the «Iron and Steel» sector in order to be able to distinguish purely technological effects from the rest of intrasectoral changes.

scholarly journals Long-Term Increases and Recent Slowdowns of CO2 Emissions in Korea

2020 ◽  
Vol 12 (17) ◽  
pp. 6924
Author(s):  
Wankeun Oh ◽  
Jonghyun Yoo
Keyword(s):  
Co2 Emissions ◽  
Energy Intensity ◽  
Decomposition Analysis ◽  
Carbon Intensity ◽  
Analysis Model ◽  
Economic Sectors ◽  
Support Strategies ◽  
Index Decomposition ◽  
End Use

Korea is one of the fastest-growing CO2-emitting countries but has recently experienced a dramatic slowdown in emissions. The objective of the study is to examine the driving factors of long-term increases (1990–2015) and their slowdown (2012–2015) in emissions of Korea. This study uses an extended index decomposition analysis model that better fits Korea’s emission trends of the last 25 years by encompassing 19 energy end-use sectors (18 economic sectors and a household sector) and three energy types. The results show that emission increases in the long term (1990–2015) come from economic growth and population growth. However, improvements in energy intensity, carbon intensity, and economic structure offset large portions of CO2 emissions. The recent slowdown (2012–2015) mainly resulted from a decline in energy intensity and carbon intensity in the economic sectors. Among the different energy types, electricity has played a significant role in decreasing emissions because industries have reduced the consumption of electricity per output and the source of electricity generation has shifted to cleaner energies. These results imply that the Korean government should support strategies that reduce energy intensity and carbon intensity in the future to reduce CO2 emissions and maintain sustainable development.

scholarly journals Impact of Nigeria's industrial sector on level of inefficiency for energy consumption: Fisher Ideal index decomposition analysis

Heliyon ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. e06952
Author(s):  
Abdulrasheed Zakari ◽  
Jurij Toplak ◽  
Missaoui Ibtissem ◽  
Vishal Dagar ◽  
Muhammad Kamran Khan
Keyword(s):  
Energy Consumption ◽  
Decomposition Analysis ◽  
Industrial Sector ◽  
Index Decomposition Analysis ◽  
Index Decomposition ◽  
Fisher Ideal Index

scholarly journals Analysing South Africa’s automotive energy consumption : application of index decomposition analysis

2021 ◽  
Author(s):  
◽  
Rofhiwa Tevin Machivha
Keyword(s):  
Energy Consumption ◽  
Decomposition Analysis ◽  
Structural Effect ◽  
Intensity Effect ◽  
Sectoral Shifts ◽  
Activity Effect ◽  
Index Decomposition Analysis ◽  
Index Decomposition ◽  
Industrial Energy ◽  
The Impact

This research focuses on applying the Index Decomposition Analysis (IDA) to South Africa’s automotive industry to decompose energy consumption and further make use of regression analysis to understand how it relates to the economy. South Africa has been going through an energy crisis, which has resulted in ongoing load shedding as a way to manage this crisis. Looking at South Africa’s energy generation, it can be noted that the entire country depends on Eskom as the main supplier and of electricity, but it is unable to keep pace with the demand. The results of the research show that there exists a nexus across all segments between energy consumption and GDP; furthermore, the decomposition results show that energy consumption in some years experienced a reduction. However, it can be seen that an increase in energy consumption year on year is predominant; this then suggests that the reductions experienced were the result of a special event; hence, it can be deduced that overall energy consumption has increased slightly. The increase is as a result of the activity effect which contributed the most towards this whilst the structural effect yielded a negligible contribution. Lastly, the intensity effect contributed to the reduction in energy consumption as a result of sectoral shifts; this reduction contributed towards keeping the overall increase in energy consumption low. This study aimed to outline the differences in energy consumed during the production of different vehicle classes, citing various factors responsible for the changes in energy consumption during vehicle production, raising awareness with manufacturers on the impact industrial energy consumption has on the national energy grid and on advising medium to large manufacturers to become suppliers.

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