Transcript Problems that occur with energy

Sustainable long-term
energy supply
When you look at the present time, you will see that energy
problems are not only encountered in your own country. The
global energy problem faced by mankind today is likely to
worsen unless energy sources are used efficiently and
sustainably.
One expensive commodity which we might run out of by the
year 2050 is oil – a non-renewable energy resource.
Therefore it will have to be replaced by alternative and
renewable energy sources.
Fortunately today, real efforts are being made towards
the utilization of renewable sources like wind,
hydropower, solar, geothermal, wave energy and
biomass.
There is of course hope
that alternative sources
will cover huge energy
demand before we run out
of traditional energy
sources.
The environmental impact of the energy industry is
diverse. Consumption of fossil fuel resources lead to global
warming and climate change. In most parts of the world
little change is being made to slow these changes.
Rapidly advanced technologies can achieve a transition of
energy generation, water and waste management, and
food production towards better environmental and energy
usage practices.
In order to save energy it is very
important for all of us to be
ENVIRONMENTALLY-CONSCIOUS.
1.We need to decrease the power losses:
We can use:
~ Thermal insulation. The government even
subsidizes thermal insulations of houses by paying
back 30% of the total cost.
~ Double or triple-glazed windows are built in.
2.We should increase energy efficiency of
electrical appliances:
We can do that by purchasing environmentallyfriendly products, also called GREENLINE: fridges,
dishwashers, induction heaters, cookers, tumble
dryers; energy saving light bulbs … these products
save energy and thus money.
3.We should take energy- saving measures
as an individual, as a family and as a
community:
~ As an individual we should:
turn the lights off in broad daylight
turn off the TV set/ computer if we are doing something
else
start the washing machine only when it is full
dry the laundry on the clothesline
use a bike instead of a car for driving short distances.
~ As a family:
improve thermal insulation in detached houses and
tower blocks
build in double/triple glazed windows
install solar panels
purchase Greenline products only
~ As a community:
EARTH HOUR- Earth hour is a worldwide event
encouraging households and businesses to turn
off their non-essential lights for one hour to raise
awareness about the need to take action on
climate change.
QUESTIONNAIRE
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Do you turn off electrical appliances (TV, computer) or do you leave
them on standby when they are not in use?
Has your family got a tumble dryer? Do you use it in summer too or
do you prefer using a clothes line outdoors?
Do you sort garbage (paper, aluminium, plastic, glasss) so that it
can then be recycled?
Are there solar panels on your roof? Have you got a heat pump in
your home?
Would you be willing to purchase an electric car for shorter
distances if you lived in a town?
Would you ever prefer to spend your holiday in homeland to avoid
flying?
…
RESOULTS
Has your family replaced incandescent light bulbs with
compact flourescent light bulbs which use 60% less energy?
Yes.
No.
Some of them.
I don’t know.
16 students
4 students
7 students
1 student
If you commuted to Ljubljana on a daily basis, would you be
willing to car-share?
THANK YOU FOR
YOUR
ATTENTION!