Conventional Sources of Energy

1. The sources of energy which have been in use for a long time, e.g., coal, petroleum, natural gas and water power.
2. They are exhaustable except water.
3. They cause pollution when used, as they emit smoke and ash.
4. They are very expensive to be maintained, stored and transmitted as they are carried over long distance through transmission grid and lines.

5. Energy that has been used from ancient times is known as conventional energy. Coal, natural gas, oil, and firewood are examples of conventional energy sources.

    

Non-Conventional Sources of Energy

1. The resources which are yet in the process of development over the past few years. It includes solar, wind, tidal, biogas, and biomass, geothermal.
2. They are inexhaustible.
3. They are generally pollution free.
4. Less expensive due to local use and easy to maintain.
5. Sources of energy include:

• Solar power
• Hydro-electric power (dams in rivers)
• Wind power
• Tidal power
• Ocean wave power
• Geothermal power (heat from deep under the ground)
• Ocean thermal power (the difference in heat between shallow and deep water)
• Biomass (burning of vegetation to stop it producing methane)
• Biofuel (producing ethanol (petroleum) from plants