Non Renewable Energy:

Non-renewable energy sources are available in limited supplies. This is usually due to the long time it takes for them to be replenished, unlike RENEWABLE ENERGY SOURCES.

Non-renewable energy is energy from fossil fuels (coal, crude oil, natural gas) and Nuclear Fuels (uranium). Fossil fuels are mainly made up of Carbon. It is believed that fossil fuels were formed over 300 million years ago when the earth was a lot different in its landscape. It had swampy forests and very shallow seas. This time is referred to as ‘Carboniferous Period

Fossil fuels are made up mainly of carbon. When they are burned (used) they produce a lot of carbon compounds (carbon dioxide and other green house gases) that hurt the environment in many ways. Air, water and land pollution are all consequences of using fossil fuels.


1. COAL: Coal is the last of the major fossil fuels. Created by compressed organic matter, it is solid like rock and is obtained via mining.

Coal is made of the remains of ancient trees and plants that grew in great swampy jungles in warm, moist climates hundreds of millions of years ago. The chemical and organic process these dead organisms undergo to become coal is known as Carbonization. Coal is ranked very high if it has undergone a longer carbonization period. An example is Anthracite. Coal that has not undergone too much carbonization is ranked low, and an example is Peat.

2. NATURAL GAS: Natural gasses gather below the Earth’s crust and, like crude oil, must be drilled for and pumped out.
Natural Gas is colorless, shapeless, and odorless in its pure form. Unlike other fossil fuels, natural gas is clean burning and emits lower levels of potentially harmful byproducts into the air. It is therefore called “Clean Gas’.

While natural gas is formed primarily of methane, it can also include ethane, propane, butane and pentane. It is one of the gases that are formed by the same formation of fossil fuels.
The main ingredient in natural gas is methane, a gas (or compound) composed of one carbon atom and four hydrogen atoms#

3. CRUDE OIL: Crude oil (a non-renewable resource) is usually found in underground areas called reservoirs. It is liquid in nature and yellowish black in color. They are composed mainly of hydrocarbons and organic compounds. They are usually discovered by oil prospecting scientists.

Crude oil can exist either deep down in the earth’s surface or deep below the ocean beds. Oil drills mounted in the oceans are known as offshore drills

KEY POINTS: #A great chunk of all the total crude oil in the world is processed as gasoline, which we use for our cars. They can also be processed into liquid products such as rubbing alcohol, or solid products such as nail polish, water pipes, shoes, wax and crayons, roofing, vitamin capsules, and many other items#

4. URANIUM : Uranium was first discovered by a German Scientist called Martin Klaproth in 1789. Uranium is a naturally occurring element found within the Earth’s core. Most uranium deposits occur in small quantities which miners gather together, refine, and purify.

It is usually in a form of heavy metal, naturally occurring in most rocks, soil, and even in the ocean! It is found in many places in the world. Energy from uranium is called nuclear energy.
Power generated from a nuclear reaction is similar to that of fossil fuels because they all use heat to turn blades (turbines) to generate power.