3. Earth hour
“A global event created to symbolize
that each one of us, working together,
can make a difference on climate
change.”
1 day ago!!!!!!
4. In 2012
More than 400 cities
50 million people globally
Major icons went dark
including the Sydney Opera
House, Rome’s Coliseum, and
Antarctica’s Scott Station
7. Energy source
Non renewable energy
source
Renewable energy source
Exists in finite supply Replenishes very rapidly
Is used faster than it can
replenish
Inexhaustible supply
Eg; Oil, coal, nuclear fuel Eg; solar, wind
,hydropower
12. Advantages & DISADVANTAGES
ADVANTAGES DISADVANTAGES
•LARGE AMOUNT OF
ENERGY IN LOW COST
•CO2, LEADS TO GREEN
HOSE EFFECT
•EASY
TRANSPORTATION
•SULPHUR DIOXIDE
RESULTS IN ACID RAIN
•VERY EFFIENT •MINING COAL IS
DANGEROUS & DIFFICULT
•IT CAN BE BUILD
ALMOST ANY WHERE
•STRIP MINING DISTROY
LARGE AREA OF LAND
14. Advantages & DISADVANTAGES
ADVANTAGES DIS ADVANTAGES
NOT SO EXPENSIVE CATASTROPHIC RISKS
NO SMOKE OR CO2 IT TAKES MANY YEARS
FOR THE RADIO
ACTIVITY TO DIE
HIGH EFFICENCY A LOT OF MONEY HAS
TO BE SPENT FOR
SAFTEY
SMALL AMOUNT OF WASTE ------------------------------
--------
21. EFFECT OF GLOBALWARMING
Already happening
Change in precipitation.
Change in vegetation
Changes in the animal and human world
in response to these environmental
changes.
Melting ice and rising sea level
22. If this continues
• Hurricanes will become stronger.
• Species out of sync.
• Floods and droughts will results in fresh
water scarcity.
• Diseases will spread
• Ecosystems will change.
25. Global Energy Impact: CO2 emissions
Source: DTI (2002). Energy: its impact on the environment and society.
26. CO2 Emissions by Sector,
1990-2030
18 000
16 000
14 000
12 000
10 000
8 000
6 000
4 000
2 000
CO2 emissions in power generation and transport are expected to
increase the most
0
1990 2002 2010 2020 2030
million tonnes of CO2
Power Generation Other Transformation Industry Transport Other Sectors
27. HOW CAN WE PRODUCE ENERGY BY
PROTECTING THE ENVIORNMENT?
1 RENEWABLE ENERGY SOURCE
2 SAVING ENERGY
29. 1 WIND
worth building wind farms in places
that have strong, steady winds
30. • Wind energy in India
Electricity situation in India
Current Installed Capacity - Around
130000 MW
Target Planned Capacity – 240000
MW by 2020
India has been experiencing a large
gap between demand and supply of
electricity.
Peak level shortages exceed 35%.
The National Electricity Policy,
2005 expresses the need to use
non-conventional energy sources
Ranks 5th in the world
31. Advantages & DISADVANTAGES
ADVANTAGES DISADVANTAGES
WIND IS FREE NOT ALWAYS PREDECTABLE
NO WASTE & NO GREEN
HOUSE GASES
LAND IS EXPENSIVE
TOURIST ATTRACTION NOISY
LAND BENEATH CAN BE
USED FOR FARMING
PURPOSE
KILL BIRDS
SUPPLYING ENERGY TO
REMOTE AREAS
AFFECT TV RECEPTION
32. 32
2 SUN LIGHT
SOLAR PANEL PHOTO VOLTAIC CELL
Passive solar ; direct and indirect
thermal energies
Active solar; sun’s Electro magnetic
radiation
33. • solar energy in India
Government encouraging Solar
energy investments..
• To help in running of solar
projects, there is a subsidy of Rs
12/Kwh
• Capital subsidy available in case
of semiconductor based units
• Provisions for Accelerated
depreciation available for solar
manufacturers
• NIL excise duty for
manufacturers
• Low import tariff for several raw
materials and components
• Soft loans to users,
intermediaries and manufacturers
Grid tie system
34. Advantages & DISADVANTAGES
ADVANTAGES DISADVANTAGES
SOLAR ENERGY IS FREE DOESN’T WORK AT
NIGHT
HANDY FOR LOW POWER
USE
EXPENSIVE
------------------------------------ NOT RELIABLE
35. 3 TIDES
Combination of the moon and sun’s
gravitational forces
36. TIDAL ENERGY IN INDIA
Potential sites;Gulf of Kutch ,Gulf of
Cambay in Gujarat, ,the Delta of the
Ganga in the Sunder bans region in
West Bengal
37. Advantages & DISADVANTAGES
ADVANTAGES DISADVANTAGES
FREE POWER AVAILABILITY
ONLY FOR 10 HOUR A
DAY
NO GREEN HOUSE
GASES
BARRIER IS EXPENSIVE
RELIABLE NEEDS WIDE AREA
NOT PREDICTABLE
38. 4 WATER
kinetic energy contained in falling water
into electricity
39. HYDROELECTRIC ENERGY IN INDIA
Rank in world;5
CLASSIFICATION DEPENDING ON THE HEAD
ULTRA LOW HEAD BELOW 3 METRES
MEDIUM HEAD FROM 30–75 METRES
HIGH HEAD ABOVE 75 METRES
Total hydro power potential;84044MW
More than 78%-Himalayan region
Classification; high head & low head
40. Advantages & DISADVANTAGES
ADVANTAGES DISADVANTAGES
VIRTUALLY FREE EXPENSIVE
NO WASTE BUILDING A VERY LARGE
DAM FLOOD A LARGE
AREA
RELIABLE FINDING SUTABLE SITE
IS DIFFICULT
INCREASE TO FULL
POWER QUICKLY
WATER QUALITY AND
QUANTITY
DOWNSTREAM CAN BE
AFFECTED, WHICH CAN
HAVE AN IMPACT ON
PLANT LIFE
CONSTANT GENERATION
OF ELECTRICITY
41. 5 GEOTHERMAL ENERGY
Geo thermal spot
Dry steam field ,Wet steam field, Hot water,
Geo pressure field, Magma deposits, Hot dry
rocks, Volcanoes
42. GEOTHERMAL ENERGY IN INDIA
Geological Survey of India, identified350
geothermal energy locations in India
Important location;Pugavalley of Ladakh.
The estimated potential for 10000 MW.
43. Advantages & DISADVANTAGES
ADVANTAGES DISADVANTAGES
NO POLLUTION LACK OF GEO THERMAL
SPOT
FREE FUEL SOME TIMES A
GEOTHERMAL SITE MAY
"RUN OUT OF STEAM",
PERHAPS FOR DECADES
HAZARDOUS GASES AND
MINERALS MAY COME UP
44. 45
World Total Primary Energy Supply
**Other includes geothermal, solar, wind, heat, etc.
45. 46
World Energy Consumption
Oil
Natural gas
Coal
Other renewables
Nuclear power
Hydro power
7 000
6 000
5 000
4 000
3 000
2 000
1 000
0
1970 1980 1990 2000 2010 2020 2030
Mtoe
46. SAVING ENERGY
1.How to increase the energy
efficiency of a generator?
1. Integrated gasification combined cycle (IGCC)
2. Combustion optimization using modern control
systems
47. 2.How to increase the energy
efficiency in the Power Grid?
1. HVDC
2. FACTS Devices
3. Gas-Insulated Substations
4. Superconductors
5. Wide Area Monitoring Systems
48. What government can do?
1. Standards and labeling
2. Energy conservation building codes
3. Designated consumers
4. National Energy Conservation Awards
5. Small Group Activities on Energy
Conservation
49. How to save energy in our home?
1. Turn off the lights when you don’t
need them!
2. Encourage energy saving light
bulbs
3. Use Passive solar water heater
4. leave pc & T v Switch off! Don’t on
standby
5. Buy Energy Star appliances
6. Don’t Be a Drip
7. Turn Off and Unplug
50. Contributory Factors in CO2
Reduction 2002-2030
100%
80%
60%
40%
20%
0%
4%
5%
17%
7%
67%
Developing countries
10%
7%
58%
World
End-use efficiency gains
Fuel switching in end uses
20%
Increased renewables in power generation
Increased nuclear in power generation
5%
Changes in the fossil-fuel mix in power generation
51. Advantages of Energy Conservation
(Moralizing)
• Less need to secure oil overseas with
attendant military and civilian casualties
while costing hundreds of billions of dollars
• Fewer power plants and liquid natural gas
ports are needed
• Less air pollution
• Less drilling for oil
• Less global warming and attendant
environmental destruction
52. conclusion
• On current policies, world energy needs – and
CO2 emissions – will be 60% higher in 2030 than
now
• Policies under consideration & faster deployment
of technology could substantially save energy
• Urgent & decisive government action is needed
Do support renewable energy plants coming
across the world, it is not going to harm you as
much as fossil fuel
Depending on renewable energy source together
with saving electrical energy is an efficient method
to meet our demand without producing pollution”
53. reference
1.Renewable Energy Sources;D. Elango
Assistant Professor in Civil eng. Hindustan College of Engg. Chennai
2. Energy Efficiency in the Power Grid-www.abb.us
3. Indian Wind Energy Outloo k 2011
4Coal-Fired Power Plants Kristin Scheel,Alejandra Kuhn ,Brianna
Beconovich,Ryan Nester
5 polly well nuclear coal pollution
6 Environmental Sustainability Educational Resources Gregory A.
Keoleian Associate Research Scientist,School of Natural Resources
and Environment
7 ENERGY CONSERVATION IN INDIA
Shri P M Sayeed, Hon’ble Minister of Power’s article on the occasion of
Energy Conservation Day, on 14th December 2005.
8 Implementation of Energy Conservation Act and BEE Action Plan
9Tidal energy the mighty tidal bose
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