Reappraisal of energy supply-demand in 2050 shows big role for fossil fuels, nuclear but not for nonnuclear renewables

Author's note: This article was first published in French in the magazine La Revue de l'Energie (No. 509, September 1999). The original publication did not include the figures and graphs that have been incorporated in this new version, while some information has been further developed.There are a number of different energy scenarios currently being proposed, but most industry analysts forecast that world primary energy demand will double by 2030, climbing to 18 gigatonnes of oil equivalent (Gtoe)/year from 9 Gtoe in 2000, and roughly triple to 25-30 Gtoe by 2050. According to these projections, by 2050 fossil fuels will account for no more than two thirds of all energy consumed vs...

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