MULTIPLICATIVE LMDI APPROACH TO SOUTH AFRICA’S INDUSTRIAL ENERGY CONSUMPTION

• Main Author: Olanrewaju, Oludolapo Akanni
• Format: Article
• Language: English
• Published: Stellenbosch University 2019-05-01
• Series: South African Journal of Industrial Engineering
• Subjects: logarithmic mean divisia index; activity; structure; intensity; manufacturing sectors
• Online Access: http://sajie.journals.ac.za/pub/article/view/2037

As a developing country, South Africa’s manufacturing sectors have led to the country’s present industrialisation. Whereindustrialisation occurs, energy plays a pivotal role. This study, therefore, focuses on analysing and understanding the contributingfactors responsible for the energy consumed in South Africa’smanufacturing sectors. The period under investigation is from 1970 to 2016. Two different modes of understanding the factors responsible for energy consumption are structural decomposition analysis (SDA) and index decomposition analysis (IDA). The latter was preferred for this study. The logarithmic mean divisia index (LMDI) was adapted for the analysis. The energy consumed by the manufacturing sector is decomposed into the activity, structure, and intensity effects. Results show that both intensity effects andstructure effects contributed to the country’s energy efficiency by3.10 per cent and 1.73 per cent. On the other hand, activity effects contributed to the rise of industrial energy consumption by 8.04 per cent. The empirical findings of this study support initiatives in the form of policies to concentrate more on the industrial activity effects to complement energy efficiency strategies.