This presentation discusses the 4 types of non conventional energy sources which are solar, hydro, wind .... and how they can solve loadshedding

1. Non-conventional
energy sources
GEOGRAPHY
GRADE 11
LJ MOSENEKE

2. Lesson outcomes
Define non-conventional
energy sources and explain
how they differ from
conventional energy sources.
Explain how different non-
conventional energy sources
work and compare their
effectiveness.
Evaluate the benefits of using
non-conventional energy
sources.
Assess the social, economic,
and environmental impacts of
non-conventional energy
sources.

3. What is non-conventional energy
source
Introduction video https://youtu.be/BW_KXGhagoE

4. Content
1 Introduction
What is Non conventional energy and how does it
work
2 The difference between non conventional and
conventional energy
3 Examples of nonconventionalnventionalional
energy (Solar, wind, hydropower, biomass and
geothermal)
4 The future and innovation of using renewable

5. What is a
non-
convention
al energy
source(cont
inues)
Non-conventional energy
sources are sources of energy
that are not derived from fossil
fuels or nuclear power. These
sources include renewable
energy sources such as solar,
wind, hydroelectric, geothermal,
and biomass. These sources of
energy can be sustainable and
have a lower environmental
impact than conventional energy
sources (Patel, 2017)

6. How does
conventional
energy
sources work
Non-conventional energy
sources, or renewable
energy sources, work by
harnessing the power of
natural phenomena, such
as the sun, wind, water,
or geothermal heat.
These sources are
constantly being
replenished, unlike fossil
fuels, which are a finite
resource(Patel,2017)

7. What are
the
difference
between
non and
conventio
nal energy
source
The key difference between non-
conventional energy sources and
conventional energy sources is that non-
conventional sources are renewable, while
conventional sources are not. Conventional
energy sources, such as coal, oil, and
natural gas, are finite resources that will
eventually run out(Patel,2021) Non-
conventional energy sources, such as solar
and wind power, are constantly replenished,
making them a more sustainable option.
Another key difference is that conventional
energy sources can have a negative impact
on the environment, while non-conventional
sources tend to have a lower environmental
impact.

8. What are different
examples of non-
conventional
energy 1. Solar energy is a type of
renewable energy that is
generated from the sun's
radiation. Solar energy can be
converted into electricity using
photovoltaic (PV) cells, which are
made from semiconductor
materials that generate electricity
when exposed to sunlight. Solar
energy can also be used to heat
water or air, or to power
desalination plants.Advantage:
Solar energy is a clean and
abundant resource, and its use
can help to reduce greenhouse
gas emissions and dependence
on fossil fuels (Johnson, 2018)

9. Solar
energy(continu
es)
One of the main disadvantages of
solar energy is that it is
intermittent, meaning it is only
available when the sun is shining.
This means that it is not a reliable
source of energy for areas that
experience a lot of cloud cover or
inclement weather. In addition, the
initial cost of installing solar panels
can be high, and the equipment
may require regular maintenance.
However, advances in technology
and economies of scale are
making solar energy more
affordable and accessible.

10. Wind power
Wind power is a type of renewable energy that
uses the wind to generate electricity. Wind turbines
are used to convert the kinetic energy of the wind
into electrical energy. The wind turns the blades of
the turbine, which are connected to a shaft that
spins a generator, which produces electricity. Wind
power is clean and emits no greenhouse gases. It
is also abundant, and wind turbines can be built on
land or offshore. Wind power has several
disadvantages that should be considered. First,
the wind is not constant, so wind turbines cannot
generate electricity all the time. Second, wind
turbines can be noisy, and they can also kill birds
and bats. Third, wind turbines require a lot of
space, and they can be an eyesore in some areas.
Finally, wind turbines can have a negative impact
on local ecosystems, as they can disrupt the
natural habitat of animals and plants(Sidhu, 2014)

11. hydroelectric
Hydroelectric power, also known as
hydroelectricity, is a type of
renewable energy that uses the flow
of water to generate electricity. This
can be done in two ways: by using a
dam to store and release water, or by
using a river or ocean current to spin
a turbine. Hydroelectric power is a
clean and reliable source of energy,
but it can have an impact on the
environment, such as flooding and
habitat loss(Sidhu,2014)

12. biomass
Biomass energy is a type of renewable
energy that uses organic materials, such as
crops or animal waste, to generate electricity.
Biomass is burned to heat water, which
creates steam that drives a turbine to
generate electricity. Advantage It is a
renewable resource, as it relies on plants
and animals that can be regrown. It can be a
cost-effective source of energy, as biomass
can be sourced locally. Disadvantage- It can
lead to deforestation and habitat loss, as
trees are often used as a source of biomass.
(Meenakshi and Shalini,2012).

13. geothermal
Geothermal energy is a renewable
energy source that uses the heat
from the earth to generate electricity.
This heat can be found in the form of
hot water or steam, and it is
harnessed by drilling wells into the
ground. The hot water or steam is
then used to spin a turbine, which
generates electricity. Geothermal
energy is clean and efficient, but it
can be expensive to set up and can
have an impact on the surrounding
area.

14. New
renewable
energy
plants in
South
Africa
In November 2011 South
Africa signed a R1,9
billion to develop
renewable energy – the
Sere wind power and
Upington solar power
projects. These will each
produce 100 MW with
the ability to increase
this later. These are the
largest renewable
energy projects in
Africa.

15. The future of non-
conventional
energy in South
Africa
immediate future. Eskom
currently is building two
huge new coal-powered
stations at Mudupi in
Limpopo and Kusile in
Mpumalanga. • Biofuel,
often made into diesel for
tractors, is a less
important energy source
and there is great debate
surrounding whether
burning certain crops
such as maize increases
the price of these
commodities, to the
detriment of the poor. •
Solar and wind power are
well-established

16. Innovations for
the future
High altitude wind power. The
energy carried by wind streams
at elevated levels in the Earth’s
troposphere has been
estimated at over 850
terrawatts (TW). This
represents an incredible
potential resource, considering
that humanity’s total annual
energy budget amounts to
‘only’ about 17 TW. • Artificial
photosynthesis. A team of
researchers has manufactured

17. Possible effects of using
more non-conventional
energy on the South
African economy and the
environment
The economy:
If the South African
economy is to grow
the supply of
electricity will have
to grow with it. Coal
will remain our main
source but energy
from renewable
sources will be
expected to make up
a substantial 42% of
all new electricity
generation in South
Africa over the next

18. continues
warming and the other problems
associated with fossil fuels, South
Africa must switch to renewable energy
sources like wind and sunlight. • Wind
power produces no air or water
pollution, greenhouse gases involves
no toxic or hazardous substances
(other than those commonly found in
large machines), and poses no threat to
public safety. Problems facing the wind
industry are opposition about the
visibility and noise of wind turbines,
and their impacts on wilderness areas.
Spinning turbine blades maim and kill
birds and bats. • Solar power. As solar
power systems generate no air pollution
during operation, the primary
environmental, health, and safety
issues involve how they are
manufactured, installed, and ultimately

19. Important
question
Do you think SAs
energy sources will
improve in the next
coming years?

20. Conclusion
SA is still making sure it progresses to renewable
energy sources, hopefully, by 2030 most of its
energy sources will be renewable however it’s still
a long road. Renewable energy sources proved to
be the most significant and important energy
sources because they are reliable and bring less
damage compared to conventional energy sources
like fossil fuels. Overall it is important to keep our
energy or power sustainable.

21. Reference list
Charan, P. (2021). Unit 1 introduction to non-conventional energy energy resources. Available at:
https://www.slideshare.net/piyush210987/unit-1-introduction-to-nonconventional-energy-
resources?from_search=15 [Accessed 20 Aug. 2023].
Johnson, S. (2018). Nonconventional farming. Available at:
https://www.slideshare.net/suzettejohnson6/non-conventional-farming?from_search=8 [Accessed 20
Aug. 2023].
Meenakshi, V., Shalini,. M. (2012). Renewable energy resources. Available at:
https://www.slideshare.net/shalini2093/renewable-energy-resourses [Accessed 20 Aug. 2023].
Patel, R. (2017). Non-conventional energy environment physics. Available at:
https://www.slideshare.net/ravi9396/non-conventional-energy-78506562?from_search= [Accessed 20
Aug. 2023].

22. cONTINUATION
Sidhu, J, S. (2014). Nonconventional sources of energy. Available at:
https://www.slideshare.net/sidhu007/non-conventional-sources-of-energy-30135444?from_search=5
[Accessed 20 Aug. 2023].

23. Remember
You are the CEO of
your life
Be executive about
it(Thwala 2022)