Learn about renewable energy resources & efficiency. IGCSE acclaimed

1. Science Subject:
Energy Rescources
Group 1: 10A
By: Muhammad Asif, Mohammed Umer, Ibrahim Khan and
Ali Nehan Khan

2. Pros & Cons
Skills & Development
02
04
Efficiency
Energy
01
03 Comprehend the HPL skills
used within our presentation
Learning Objectives
To explore diverse forms of energy
Analyze the efficiency of wind
energy
Discuss the pros and cons of
each energy type

3. Here we’ll give a brief introduction on our energy resources and state their
importance
Introductions
01

4. Geothermic Energy
• Provides a reliable and
continuous source of
renewable power
• Often have a lifespan of over
20 years
Muhammad Asif

5. Solar Energy
• Scalability allows for it to easily
meet different energy
requirements
• Offers off-grid solutions through
PV panels, allowing for energy to
spread to remote areas
Ibrahim Khan

6. Wind Energy
• Energy Independent, reducing
dependance on finite resources
• Diverse Applications allows for
kinetic energy to be gathered from
several sources
Mohammed Umer

7. Hydroelectric Energy
• Minimal greenhouse gas
emissions
• Reservoirs can benefit local
communities and increase
the economy of the local
area.
Ali Nehan Khan

8. Harnesses the internal heat by drilling wells
of geothermal reservoirs which holds hot
water or steam which is then brought to the
surface. The hot fluid is used to vaporize a
working fluid with a lower boiling point, such
as isobutane.
Geothermal Energy
#Deep Dive
● Cleaner than fossil fuels
● Ties into wind energy
● Can be dry steam, flash steam, or binary
cycle systems

9. Uses photovoltaic cells in solar panels (usually
containing silicon to release electrons. Released
electrons flow generating electricity. CSP
(concentrated solar power) systems use mirrors
to focus sunlight onto a small area.
Solar Energy
#Deep Dive
● Abundant and Renewable
● Minimal Environmental Impact
● Economic Viability
My Identity

10. Wind energy harnesses the power of the wind to
generate electricity. Turbines, mounted on tall towers,
capture kinetic energy from moving air. As the wind
turns the blades, a generator converts this mechanical
energy into electricity. It's a renewable, emission-free
source, contributing to cleaner and more sustainable
power generation.
Wind Energy
#Deep Dive
● Harnesses natural wind for perpetual
energy generation.
● Produces electricity without emissions,
promoting environmental health.
● Complements other renewables for flexible
and reliable power.
Critical Thinking
Consider the picture below; what do you think it's
depicting?
HINT: Drawback

11. Hydroelectric Energy
#Deep Dive
-Potential Energy at
the top.
-As it goes down –
gravitational to
kinetic
-Kinetic powers
turbines
-spinning turbines
are connected to
generators
(mechanical to
electricity)
-Sustainable Cycle
DAMS

12. Advantages -
Renewable
Energy
Sustainability
Reduced Greenhouse Gas
Emissions
Eco-Friendly
Lower Environmental
Impact
Employment
Job creation & growth
mindset
Independence
Reduced Dependency on
Fossil Fuels
Efficiency
Enhanced Energy
Efficiency
Economics
Long-Term Cost
Savingss
Health
Improved Public Health

13. Disadvantages -
Renewable Energy
Land Use
Requirement for
Extensive Space
High Cost
Significant Upfront
Investments
Developing
Current Technology
Constraints
Environment
Destruction of wild
life environment
Did you notice…
-There are more advantages than
disadvantages for using renewable
energy.
-Many scientists predict renewable
energy is the future of power
production.
-Statistics show that by 2050, 80% of
our power will come from renewable
resources.

14. In recent times efficiency for wind energy has sky
rocketed due to the popularity of pushing the
agenda of renewable energy. For example the
changes of turbines in specialized plants and the
materials and control system. By eliminating the
need for finite resources and fuel we can increase
energy efficiency even more. Here we’ll go more in-
depth on this.
Energy Efficiency
● Energy efficiency (%) = (Useful energy output
/ Total energy input) * 100
● Energy efficiency (ratio) = Useful energy
output / Total energy input
Energy efficiency measures the ratio of useful energy
output to total energy input, a critical concept in
engineering, physics, and environmental science.
Wind turbines demonstrate high energy efficiency by converting
the kinetic energy of wind into electrical power with minimal
losses, highlighting their effectiveness in harnessing renewable
energy.

15. Geothermal Energy:
•Geothermal power plants tap into the Earth's internal heat to produce electricity.
•Geothermal energy systems are known for their high efficiency compared to some other
renewable sources.
•Energy efficiency of geothermal power plants can exceed 90% in some cases, making them one
of the most efficient renewable energy sources.
Hydroelectric Energy:
•Hydroelectric power plants generate electricity by harnessing the energy of flowing water.
•Energy efficiency in hydroelectric systems is typically high, often exceeding 90%.
Efficiency depends on factors like the design of the hydroelectric plant and the water flow rate.
Solar Energy:
•Solar energy systems, such as photovoltaic (PV) cells, convert sunlight into electricity.
•The energy efficiency of solar panels has been improving, with modern panels achieving
efficiencies of around 15% to 22%.
•Factors like sunlight intensity, duration, and the type of solar technology used can influence
efficiency.
Wind Energy:
•Wind energy systems, such as wind turbines, convert the kinetic energy of wind into electricity.
•Energy efficiency can be affected by factors like wind speed, turbine design, and maintenance.
•Wind energy systems typically have an energy efficiency ratio ranging from 30% to 45%,
depending on location and technology.
Efficiency
Our Source (energystar.gov):

16. Give an advantage and disadvantage for hydroelectric energy
Discuss the efficiency of wind energy
Give a link to the UAE for: Solar Energy
Short Q&A There was already opportunities for interaction throughout the presentation –
this is just a small quiz
Briefly explain Geothermic energy

17. Interesting…

18. Thankyou