The document discusses various renewable energy resources including solar, biomass, biofuel, geothermal, wind, hydroelectric, tidal, and wave energy. It provides details on different types of biofuels such as ethanol, biodiesel, and biogas which are produced from organic waste sources. Geothermal heating systems are described that use the ground as a heat source and sink. Advantages of various renewable resources are stated as being clean sources that do not contribute to pollution. The conclusion emphasizes creating awareness and using resources sufficiently rather than greedily.

1. RENEWABLE ENERGY
RESOURCES: ROLE OF
AN INDIVIDUAL

2. NEED FOR RENEWABLE
ENERGY
Effect to the environment
• Combustion of fossil fuels generates sulfuric, carbonic, and nitric
acids, which fall to Earth as acid rain, impacting both natural
areas and the built environment.
• Fossil fuels also contain radioactive materials, mainly uranium
and thorium, which are released into the atmosphere.
• Depletion of fossil fuels
Fossil fuels are depleting in a rapid rate and are harder to
retrieve
• The consequence is that we can be facing an energy crisis in
the future is we are not careful today.
• Effect on development of small economies
• The energy prices for crude oil are going through the roof, these
countries suffer even more.
• The monthly electricity costs for households increase among
others like transport cost and prices for basic products.
• Hence, these high oil prices make it harder for these small
countries to grow there economies.

3. TYPES OF RENEWABLE
ENERGY
• SOLAR ENERGY
• BIOMASS
• BIOFUEL
• GEOTHERMAL ENERGY
• WIND ENERGY
• HYDROELECTRICITY
• TIDAL ENERGY
• WAVE ENEGY

4. BIOFUEL
• Biofuel is a type of fuel whose energy is derived
from biological carbon fixation.
BIOALCOHOLS
• Bioalcohols,are produced by the action of
microorganisms and enzymes through the
fermentation of sugars or starches,or cellulose.
• Ethanol fuel is the most common biofuel worldwide.
• Alcohol fuels are produced by fermentation of
sugars derived from wheat, corn, sugar beets,
sugar cane, molasses and any sugar or starch
made from (like potato and fruit waste, etc.).
• The ethanol production methods used are enzyme
digestion (to release sugars from stored starches),
fermentation of the sugars, distillation and drying.
• Ethanol can be used in petrol engines as a
replacement for gasoline.
Ethanol Fuel Power Plant in
Norway

5. BIOFUEL
• Biodiesel
• Biodiesel is the most common biofuel in Europe.
• It is produced from oils or fats using transesterification and is a liquid similar in
composition to fossil/mineral diesel. Chemically, it consists mostly of fatty acid
methyl (or ethyl) esters (FAMEs).
• Biodiesel can be used in any diesel engine when mixed with mineral diesel.
• Biodiesel is an effective solvent and cleans residues deposited by mineral diesel,
engine filters may need to be replaced more often, as the biofuel dissolves old
deposits in the fuel tank and pipes.
• GREEN DIESEL
• Green diesel, also known as renewable diesel, is a form of diesel fuel which is
derived from renewable feedstock rather than the fossil feedstock used in most
diesel fuels.

6. BIOFUEL
• Biogas
• Biogas is methane produced by the process of anaerobic digestion of
organic material by anaerobes.
• It can be produced either from biodegradable waste materials or by the use
of energy crops fed into anaerobic digesters to supplement gas yields.
• The solid byproduct, digestate, can be used as a biofuel or a fertilizer.

7. GEOTHERMAL ENERGY
• Geo thermal energy is the •
energy which is extracted
from the heat of the sun •
• This energy is present into
the earth due to the decay
of minerals and absorption
of sunlight by earth
• Geothermal heating
application was limited
earlier near to the tectonic
plates only. However, now
this viable energy source is
expanded over large
geographical area. Steam rising from the Nesjavellir
Geothermal Power Station in Iceland.

8. GEOTHERMAL HEATING
• Geothermal heating is the direct use of geothermal
energy for heating applications.
• WORKING
• Closed loop geothermal heat pumps circulate a carrier
fluid (usually a water/antifreeze mix) through pipes buried
in.
• As the fluid circulates underground it absorbs heat the
ground
• The heat extracted and that generated by the heat pump
appliance as a byproduct is used to heat the house.
• Switching the direction of heat flow, the same system can
be used to circulate the cooled water through the house
for cooling in the summer months.
• The heat is exhausted to the relatively cooler ground (or
groundwater) rather than delivering it to the hot outside
air as an air conditioner does.

9. BIOMASS
Definition : Biomass is the common name for organic materials used as
renewable energy sources such as wood, crops and waste.
Biomass sources:
• garbage, waste
•wood
•landfill gases
•alcohol fuels
•municipal solid waste (MSW)
•manufacturing waste

10. Types of Biomass:
1. Wood and Agricultural Products
•generate electricity
•pulp and paper industries
2. Landfill Gas
•methane gas Wood is a typical source of biomass
•biogas digesters
3. Solid Waste
•garbage

11. Advantages of Biomass
•exhaustible natural resource
inexpensive way of producing electricity
•produces oxygen and utilize more carbon dioxide
•lower the pressure of buying foreign oil

12. Solar energy
•Solar energy is the energy received by the earth from the sun. This
energy is in the form of solar radiation, which makes the production of
solar electricity possible.
Application of Solar energy
1. Solar Chemical
2.Solar Pond
3.Solar water heater
4. Solar Power Tower

13. Solar Power Tower
• The solar power towers use
sunlight reflected from a series of
mirrors to a central device called a
receiver. The receiver collects the
energy as heat which then turns
turbines to generate electricity
Solar Water Heater
It is a device which uses solar radiation to
heat water to temperatures of up to 50°-60°C.
Such water heaters may be employed in for
bathhouses and laundries.

14. HYDRO ENERGY
• DEFINATION:Hydro-electric power
means getting energy from flowing
water
• WORKING: Usually we build a
dam, and let the water turn turbines
& generators as it goes through
pipes in the dam
• ADVANTAGES: No pollution, no
fuel needed, no waste, Electricity
can be generated constantly.

15. WIND ENERGY
• DEFINATION: Wind energy means
getting energy from winds.
• WORKING: The wind blows the
propeller round, which turns a
generator to produce electricity.
• ADVANTAGES: Doesn't cause
pollution, doesn't need fuel, Wind
farms can be tourist attractions.

16. WAVES ENERGY
• DEFINATION: Waves are used for
generating the energy.
• WORKING: Waves can make
something bob up and down, and that
can drive a generator. A wave power
station needs to be able to stand really
rough weather, and yet still be able to
generate power from small waves.
• ADVANTAGES: Not expensive to
operate and maintain, the energy is
free - no fuel needed, generates great
amount of energy.
•

17. TIDES ENERGY
• DEFINATION:Tidal Power is obtain
from tides going in or out.
• WORKING: A huge dam called a
"barrage "is built across a river estuary.
When the tide goes in and out, the
water flows through tunnels in the dam.
• ADVANTAGES: Doesn't cause
pollution, doesn't need fuel.
.

18. Some ways to use renewable
energy
• Get B lueprints For A Green Hous e
• C hange Your Light Bulbs
• Light Up Your C ity

19. •Pay your bills online
•Turn up the geothermal heat
•Wear a green eye-s hadow

20. •C heck the label
•S hut off your computer
•Make your garden grow

21. CONCLUSION
•A dvantages
•A warenes s
“There is a sufficiency in the world for man's
need but not for man's greed.”
~Mohandas K. Gandhi