Environmental Engineering Reference
In-Depth Information
12
History
Projections
10
Industrialized
8
Developing Asia and
Central and South America
6
4
Rest of world
2
0
1990
1995
2000
2005
2010
2015
2020
Figure 2.5
Trend of world's electricity consumption from 1990 to 1997 and the prediction to 2020. (
Source:
Same as in Figure 2.1.)
Geothermal and
other sources
1
Nuclear energy 17
63 Fossil
Hydroelectricity 19
Figure 2.6
Proportions (%) of the the world's electricity generation supplied by primary energy sources,
1997. (Data from U.S. Department of Energy, Energy Information Agency, 1997.
International Energy
Outlook 1997
.)
Geothermal and
other sources
Petroleum 2.2
0.25
Natural gas 8.6
Hydroelectric
power plants
10.7
56.4 Coal
Nuclear
power
plants
21.9
Figure 2.7
Proportions (%) of primary energy sources supplying U.S. electricity generation, 1996. (
Source:
Same as in Figure 2.4.)
