Chapter 3
Energy Resources
As shown in Figure 3.1, energy resources are often divided into three loosely defined categories:
Figure 3.1
Energy resources.
- Fossil fuel
- Nuclear fuel
- Renewable resources
Fossil fuels include oil, coal, and natural gas. Renewable energy resources include hydropower, wind, solar, hydrogen, biomass, tidal, and geothermal. All these resources can also be classified as primary and secondary resources. The primary resources are
- Fossil fuel
- Nuclear fuel
- Hydropower
The secondary resources include all renewable energy minus hydropower. Over 99% of all electric energy worldwide is generated from the primary resources. ...
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