Energy Use Patterns in German Industry: Evidence from Plant-level Data
Katrin Rehdanz and
Ulrich Wagner ()
Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), 2011, vol. 231, issue 3, 379-414
This paper analyzes energy use and CO2 emissions of more than 78 000 German industrial plants between 1995 and 2006. It is the first study to exploit exceptionally rich energy data that were recently matched to official micro datasets. We document that both energy use and intensity are highly dispersed across plants. When isolating the between-sector variation in energy intensity, there is a strong positive correlation with energy use, CO2 emissions and emission intensity. Yet there is no evidence that the scale of an industry determines its energy intensity. The dispersion of energy use across plants of a given sector, normalized by the median, is positively correlated with that of gross output, but not with the median energy use. Similarly, there is no evidence that the median energy intensity is correlated with the within- sector dispersion of energy intensity or with that of CO2 emissions. Looking at the fuel mix across sectors, we find that more energy intensive industries rely more on fuels other than electricity, although the variability among plants in those industries is extremely high. We also demonstrate that average fuel shares are sensitive to the skewness of the underlying distribution and recommend the use of median fuel shares for better representativeness.
Keywords: Energy use; energy efficiency; manufacturing; microdata; CO2 emissions (search for similar items in EconPapers)
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