The document discusses different types of energy resources. It defines energy as the ability to produce change or do work. Energy resources are divided into nonrenewable and renewable categories. Nonrenewable resources include fossil fuels like coal, oil, and natural gas. These are formed from the remains of ancient plants and animals. While nonrenewable resources allow for large-scale electricity production cheaply and ease of transport, their main disadvantage is pollution through carbon dioxide and sulfur dioxide emissions, contributing to issues like global warming and acid rain.

1. ENERGY

2. ENERGY
The ability of a system to produce a
change in itself or in the world around it.
The ability to do work.
Represented by the symbol E.

3. WHERE DO WE GET
ENERGY?
Energy Resources.

4. ENERGY RESOURCES
Nonrenewable Resources
Renewable Resources

5. Nonrenewable Resources
Any natural resource from the Earth that
exists in limited supply and cannot be
replaced if it is used up; also, any natural
resource that cannot be replenished by
natural means at the same rates that it is
consumed.

6. Example of Nonrenewable Resources
Fossil Fuels
Coal
Oil
Natural Gas
Nuclear Energy

8. Fossil Fuels
Energy from fossilized organic materials.
They are formed from the organic remains of
prehistoric plants and animals.
Example of which are:
COAL
OIL
NATURAL GAS

9. Coal
Coal is crushed to a fine dust and burnt.
Coal provides around 28% of our energy, and oil provides 40%.
Mind you, this figure is bound to have changed since this page was
written, so check the figures if you want to quote them.
Burning coal produces sulphur dioxide, an acidic gas that contributes
to the formation of acid rain. This can be largely avoided using "flue
gas desulphurisation" to clean up the gases before they are released
into the atmosphere. This method uses limestone, and produces
gypsum for the building industry as a by-product. However, it uses a
lot of limestone.

10. Crude Oil (also called Petroleum)
Crude oil (called
"petroleum") is easier
to get out of the
ground than coal, as it
can flow along pipes.
This also makes it
cheaper to transport.

12. Natural Gas
Natural gas provides around 20% of the
world's consumption of energy, and as well
as being burnt in power stations, is used by
many people to heat their homes.
It is easy to transport along pipes, and gas
power stations produce comparatively little
pollution.

13. COMBUSTION

14. In your group, discuss the
ADVANTAGES and
DISADVANTAGES of
NONRENEWABLE ENERGY.

15. Advantages
Very large amounts of electricity can be generated in one
place using coal, fairly cheaply.
Transporting oil and gas to the power stations is easy.
Gas-fired power stations are very efficient.
A fossil-fuelled power station can be built almost anywhere, so
long as you can get large quantities of fuel to it. Didcot power
station, in Oxfordshire, has a dedicated rail link to supply the
coal.

16. Disadvantages
Basically, the main drawback of fossil fuels is
pollution.
Burning any fossil fuel produces carbon dioxide,
which contributes to the "greenhouse effect",
warming the Earth.
Burning coal produces more carbon dioxide than
burning oil or gas.
It also produces sulphur dioxide, a gas that
contributes to acid rain. We can reduce this
before releasing the waste gases into the
atmosphere.