Non-renewable energy

Non-renewable energy is energy taken from "finite resources that will eventually dwindle, becoming too expensive or too environmentally damaging to retrieve", ^[1] as opposed to renewable energy sources, which "are naturally replenished in a relatively short period of time." ^[2]

• Fossil fuels:
  • Coal exists as a mined solid.
  • Petroleum is a liquid, and forms the basis for heating oil, diesel fuel, and gasoline.
  • Natural gas is commonly also referred to just as gas. It is mostly methane, and most of the additional material is removed before use as a fuel.
• Nuclear energy fuel for fission is mined as a solid as Uranium ore.

See also

• Hubbert peak theory
• Renewable energy

References

1. ^ Renewable Energy Basics
2. ^ Renewable and Alternative Fuels Basics 101