Decomposing the variation of aggregate electricity intensity in Spanish industry

Several papers have dealt with methodological and application issues related to techniques for decomposing changes in environmental indicators. This paper aims to decompose changes in electricity intensity in Spanish industry and to explain the factors that contribute to these changes. Focusing on a...

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Bibliographic Details
Published in:Energy (Oxford) 2003-02, Vol.28 (2), p.171-184
Main Authors: FERNANDEZ GONZALEZ, P, PEREZ SUAREZ, R
Format: Article
Language:English
Subjects:
Applied sciences
Economic data
Energy
Energy economics
Exact sciences and technology
General, economic and professional studies
Methodology. Modelling
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Summary:Several papers have dealt with methodological and application issues related to techniques for decomposing changes in environmental indicators. This paper aims to decompose changes in electricity intensity in Spanish industry and to explain the factors that contribute to these changes. Focusing on an energy intensity approach based on Divisia indices, we began by reviewing the two general parametric Divisia methods and six specific cases. In order to avoid obtaining significantly different results by using differing methods, all of them have been applied to Spanish data. Also two different disaggregation levels have been taken into consideration. Combined with electricity price analysis, the results of this paper indicate the poor contribution of structural change to substantial reductions in aggregate electricity intensity, and underline the role of innovation, development, diffusion and access to more efficient technologies as main contributors to the reduction of the energy/production ratio.
ISSN:0360-5442
DOI:10.1016/S0360-5442(02)00086-5