Projections of global primary energy demand growth

Projections of global primary energy demand growth 

Most such projections, based as they are on hopeful projections of economic development, forecast massive growth in global demand for energy services over the next century. As an example, the Case B projections [6] show a 3 to 5 fold increase in world economic output by 2050 and a 10 to 15 fold increase by 2100, see Fig. 4 in section 3.3.1. When improvements in energy intensity, (GDP/toe energy input), are figured in, this corresponds with a 1.5 to 3 fold increase in primary energy use by 2050 and 2 to 5 fold increase by 2100. 

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