Upload
allyssa-bellar
View
236
Download
2
Tags:
Embed Size (px)
Citation preview
ENERGY
Non renewable Renewable
ENERGY
Pancha Bhoothas
SKY
WATER
LANDFIRE
AIR
RENEWABLE ENERGY
Types of renewable energy sourcesWind Power
Wave Power
Tidal Power
Solar energy
Hydroelectricity
Geothermal
Biomass
Biofuel
WIND
Why Wind Energy?
• Most viable & largest renewable energy resource• Widely distributed & clean• Can get started with as small as 100-200 W• Produces no green house gas emissions• Low gestation period• No raw materials & fuels required• No pollution• No hassles of disposal of waste• Quick returns??• Good alternative for conventional power plants
Wind Energy - What is it?
• Wind is the natural movement of air across the land or sea.
• Wind is caused by uneven heating and cooling of the earth's surface and by the earth's rotation. Land and water areas absorb and release different amount of heat received from the sun. As warm air rises, cooler air rushes in to take its place, causing local winds.
• The rotation of the earth changes the direction of the flow of air.
WIND RESOURCE-GLOBAL WIND SYSTEM
The region around equator at 0 deg latitude are heated more by the sun than the rest of the globe. Due to this flow of air takes place from the cold regions to hot regions.
• All renewable energy (except tidal and geothermal power), and even the energy in fossil fuels, ultimately comes from the sun. About 1–2% of the energy coming from the sun is converted into wind energy
WIND POWER - What is it?
Basic technology
•Wind Electric Generator converts kinetic energy available in wind to electrical energy by using rotor, gearbox and generator.
The Basic Process
• The wind turns the blades of a windmill-like machine.
• The rotating blades turn the shaft to which they are attached.
• The turning shaft typically can either power a pump or turn a generator, which produces electricity.
The Basic Process
• The amount of energy produced by a wind machine depends upon
1.Wind speed and the size of the blades.• In general, when the wind speed doubles, the
power produced increases eight times. • As the diameter of the circle formed by the
blades doubles, the power increases four times.
Wind Turbines: Number of Blades
Most common design is the three-bladed turbine.
+ Better stability.
A rotor with an odd number of rotor blades (and at least three blades) can be considered to be similar to a disc when calculating the dynamic properties of the machine.
A rotor with an even number of blades will give stability problems for a machine with a stiff structure..
Details of WEG
Wind Density Map - India
WIND - CLASS
CLASS 1 2 3 4
WINS SPEED M/S
8.5 – AND ABVOVE 7.5 TO 8.5 6.0 – 7.5 UPTO 6.0
Wind Regime in India
• Wind climatology in India is influenced by the
strong monsoon circulations
• Wind speed during November to March is low,
except in Southern tip of Tamil Nadu
• Best Windy Sites are in Kerala, Karnataka, Tamil
Nadu, Gujarat, Andhra Pradesh and Maharashtra
Potential Vs InstalledLocation Potential - MW Installed - MWAndhra Pradesh 1200 648
Gujarat 6488 3384
Karnataka 4544 2312
Kerala 90 35
Madhya Pradesh 824 386
Maharashtra 7119 3427
Rajasthan 5504 2734
Tamilnadu 14438 7251
Others 49
Total 20226
WIND ENERGY SCHEME - TAMILNADU
GRID CONNECTED WEG
SALE TO DISCOM @ Rs.3.39 / Unit
WHEELING FOR CAPTIVE USE –
Wheeling / Tr./other charges
Surplus energy Sale to Discom @
Rs.3.39 / Unit
Surplus energy Banking - Banking
charges ( Use before March 31st
Wind Energy Policy – Tamil Nadu
• Captive consumption / Sale to Govt.• Banking facility for unused energy for later use• Transmission charges / Wheeling charges /
Banking charges / SOC / O&M Charges are payable
• Approximately Rs.1.50 per unit payable to the EB for Captive consumption
Wind Pass In Tamil Nadu
Sl.No Name of the Pass / District Annaual Avg.Wind Speed
– KM/Hr.
1 Palghat Pass, Coimbatore, Erode 18-22
2 Shencottah Pass, Tirunelveli, Tuticorin 18-22
3 Aralvoimozhi Pass, Kanyakumari 19-25
4 Kambam Pass , Dindigul district 19-25
GHCL – WIND ENERGYLOCATION WEG CAPACITY INSTALLED CAPACITY
Shankaneri - Kanyakumar 600 KW / Enercon E43 3.60 MW
Dharapuram 800 KW / Enercon E48 4.80 MW
Annual Generation – Avg 160 Lakh units
Which contributes around 25% of present total energy consumption
Wind Power - Efficiency
• Plant Load Factor – PLF%
• Machine Availability %
• Grid Availability %
• Lull period – Wind Speed less than required
• Import / Export
Can We Store Wind Energy???
WIND ENERGY STORAGE
• BATTERIES• PUMPED STORAGE• COMPRESSED AIR• HYDROGEN AND AMMONIA• OTHER METHODS????• SMART GRID!!!!!!
Pumped Storage Hydro System
Compressed Air Energy
THANKS