Total primary energy supply per capita is a common, albeit an imperfect measure of energy efficiency in a country. For instance, neither the impact of climate on energy use (heating, cooling) nor the size of the country and the density of the population are properly taken into account when comparing countries. Energy analysts usually prefer to compare energy use per unit of output or per unit of GDP. However, the ratio has been presented here since its use is widespread.
From collection: General archive
Philippe Rekacewicz, UNEP/GRID-Arendal