Energy Sources
Biofuels
Coal
Electricity
Geothermal
Hydrogen
Hydropower
Petroleum – Oil and Natural Gas
Solar Energy
Uranium – Nuclear Energy
Wind Energy
Energy is essential. It is embodied in
everything we use. To compare sources of energy effectively, we need to
understand what it is and how it works.
What is Energy?
It comes from many sources and in many forms. The forms of energy are
classified in two general categories: potential and kinetic.
Potential energy is energy stored in an object. Chemical, mechanical,
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