Energy demand

The energy demand depends on economic and population growth and on the efficient use of energy. Future energy supply requirements can be estimated by taking such considerations into account. For the construction of the renewable-intensive energy scenario, future levels of demand for electricity and solid, liquid and gaseous fuel were assumed by the IPCC [50].
Energy demand grows slower than economic growth because of accelerated adoption of energy efficient technologies, though demand still outgrows efficiency improvements. World demand for fuel (excluding fuel for generating electricity) and electricity are projected to increase 30% and 265% respectively between 1990 and 2050.

Year Electricity Direct Fuel use      
  TWh/year EJ/year      
    Solids Liquids Gases Total fuel
           
1990 8,432 52,5 115,8 52,8 221,1
2000 12,139 59,2 108,7 48,9 216,8
2025 19,861 71,0 127,9 86,8 285,7
2050 30,750 56,1 128,5 104,5 289,1

Table 1: Electricity consumption scenarios and direct fuel scenarios [50]

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