Comparing
Methods of
generating
electricity
 Energy
sources can be grouped into two
broad categories. Non-renewable energy
sources and renewable sources.
 Renewable resources are sources that
can be replenished by natural processes
in a relatively short time
 Non-renewable energy are sources that
are limited and cannot be replenished
naturally
Pro’s and Cons
Nonrenewable
 Can generate energy quickly
 Fairly inexpensive
 Produces large amounts
energy with little fuel
 Releases pollutants into the
atmosphere
 Hazardous to humans in
some cases
Renewable
 Uses natural energy
 Don’t have to worry about the
resource running out
 Doesn’t create green house
gases and pollution
 Unpredictable sources
 Sometimes expensive to
generate energy through
sources
 Sometimes could cause
changes to animal lifestyles
Electrical Energy Production In
Canada



Worlds largest
producer of
hydroelectricity, Ex;
Niagara Falls
Large part of energy
comes from nonrenewable resources,
Ex; Coal, Uranium etc.
P.E.I was dependent
on outside electricity
because of limited
sources
Hydro
Coal
Nuclear
Oil and Gas
Other
Electricity generated in Canada in
2007
A Sustainable Choice



Sustainability means using
resources at a rate that can be
maintained indefinitely
Since 66.6% of our energy is
fossil fuels and non-renewable
resources, we may never be
able to achieve full
sustainability.
Smaller actions such as turning
off the lights when you leave
the room can save the amount
of energy you used.
Hydro
Nuclear
Gases
Coal
Oil
Other
Energy generated worldwide in
2007
Relating to the Real World
• Most houses now use solar panels to heat water.
• Hydrogen best choice of fuel in future because it
•
•
can be burned like other fuels or converted into
electricity.
Save water by taking shorter showers and low
flow toilets.
Energy is a big part of our lives and we use it for
most tasks.