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WORLD: ELECTRICITY gENERATION
90 Renewable Energy Sources in Figures
Global electricity generation from renewable energies
Renewable energies: shares of worldwide electricity generation in 2008
Oil
5.5 %
gas
21.3 %
Coal 1)
41.2 %
Nuclear
energy
13.5 %
RE share
18.5 %
Other 2)
1.5 %
Hydropower
15.9 %
Biomass/waste
1.1 %
Worldwide electricity generation from hydropower, at 15.9 %, accounts for more than nuclear power (13.5 %). But if one looks at
the shares of primary energy consumption, the situation is reversed: nuclear power, with 5.8 %, accounts for a much larger share
of primary energy consumption than hydropower with 2.2 %. The reason for this distortion is that under international agreements,
electricity from nuclear energy is assessed for primary energy purposes on the basis of an average conversion efficiency of 33 %,
whereas electricity generation from hydropower by the physical energy content method is assumed to have an efficiency of 100 %.
1) Includes non-renewable share of waste (0.3 %)
2) geothermal energy, solar, wind, marine energy
Source: IEA [103]
In 2008 roughly one fifth of worldwide electricity production was generated using renewable
energy technologies. The most important renewable resource in the conversion sector is
hydro power, which alone supplies 15.9 % of worldwide electricity volume. In the electricity
sector, biogenic energy sources play only a minor role with a share of 1.1 %.
Although the other renewable energy technologies – geothermal, solar and wind energy –
can boast rapid growth, in 2008 their contribution only came to 1.5 % of global electricity
generation.