RENEWABLE RESOURCES OF ENERGY:- WIND POWER

Presented by:-

Sri Abhijit Konwar

M.Sc 1st Semester

Roll No:- 12Department of

chemistry

contents:- Introduction: Renewable energy Wind power: What is it? How does it work? Global wind energy production Wind power production in India Environmental effects- Disadvantages Advantages Jobs in the wind Industry Conclusion References

Introduction: Renewable energy!Renewable energy is derived from natural

processes that are replenished constantly. 1. Solar, 2. Wind, 3. Hydropower, 4.

Biomass,5.Geothermal, 6. Wave, 7. TidalAll renewable energy (except tidal and geothermal

power), ultimately comes from the sun.Renewable energy replaces conventional fuels in

four distinct areas: electricity generation, hot water/space heating, motor fuels, and rural energy services.

Renewable energy resources exist over wide geographical areas, in contrast to other energy sources.

Renewable Energy:-

Wind power geothermal

energy

Solar energy

Hydro power

Biomass energy

Tidal power

Wave energy

Wind power- What is it?Wind power is an alternative

energy source that is used without producing by-products that are harmful to the environment.

Wind turbines create electricity by using the wind, a safe and renewable resources.

Wind turbines are helping our economy and environment.

Why wind power?

Wind energy is the fastest growing renewable energy source in the world.

The world wide installed capacity is growing at a rapid pace of over 30% per year.

How does it work?

Wind turbines are used to generate electricity from the wind.

The wind turns the large blades and the blades turns a generator.

Wind turbines convert the kinetic energy of the wind into mechanical energy first and then into electricity.

Special designing of the blades that is responsible for the conversion.

Wind turbine components:-

Types of Electricity Generating Windmills:-

Small (10 kW)• Homes• Farms• Remote Applications (e.g. water

pumping, telecom sites, icemaking)

Large (250 kW - 2+MW)

• Central Station Wind Farms

• Distributed Power

Intermediate (10-250 kW)• Village Power• Hybrid Systems• Distributed

Power

Development:-

The first windmill used for the production of electricity was built in Scotland in 1887 by Prof. James Blyth of Anderson’s college, Glasgow.

The first wind turbines were developed in the year 1891’s.

The modern wind power industry began in 1971.

Mass production started in 1979.

1883

Global wind energy production:-

World wide wind generating capacity is less than 5000 MW in 1995.

Global wind power installation increased by 35,467 in 2013, bringing total installation capacity up to 318,137 MW.

As of 2011, 83 countries around the world are using wind power on a commercial basis.

Top 10 wind power countries:- Worldwide there are now

over two thousand wind turbines operating, with a total capacity of 318,137 MW as of end 2013.

As of 2011, the Roscoe Wind Farm(781 MW) in the USA is the world’s largest wind farm.

Thanet wind farm in UK is the largest wind farm in the world at 300 MW(2010).

Country Total capacity end 2013(MW)

CHINA 91,424

USA 61,091

GERMANY 34,250

INDIA 28,150

SPAIN 22,959

UK 10,531

ITALY 8,552

FRANCE 8,254

CANADA 7,803

DENMARK 4,772

Rest of the world

48,351

Total 318,137

Growth of wind power:-

Wind energy is the fastest growing renewable energy source in the world.

The world wide installed capacity is growing at a rapid pace of over 30% per year.

Wind power production in India:-

The development of wind power in India began in the 1990’s. India has the fifth largest installed wind power capacity in the

world. In 2009-10 Indi’s growth rate was highest among the other top

four countries.Suzlon, an Indian-owned company and by 2006 had captured

almost 7.7% of market share in global wind turbine sales.

State-level wind power:-States Capacity as

on 31.03.14(MW)

Tamil Nadu 7253

Gujarat 3414

Maharashtra 2976

Rajasthan 2820

Karnataka 2409

Andhra Pradesh

753

Madhya Pradesh

439

Kerala 55

Others 4.30

Total 21,264

Advantages of wind energy:-Wind turbine require no

fuel.Land beneath wind turbines

can be used for farming and grazing.

Wind turbines do not produce any waste, greenhouse gases, toxins or by-products that can harm the environment.

A good method of supplying energy to remote areas.

Wind farms can be built offshore.

Creates more jobs.

Environmental effects- Disadvantages:-

Power density is very lower. Needs a very large number of wind mills to produce modest

amounts of power. Only practical in areas that are windy enough. Danger to birds. New (slow turning) designs largely eliminate this problem.

Environmental costs. material and maintenance costs.

Noise, birds and appearance.

Jobs in the wind Industry:-

Construction:-

Public relations/organizing support:-

Operations/Maintenance

Engineering/Design:-

Environmental Impact Assessment:-

Conclusion:-

Wind energy is pollution free and nature friendly.Wind energy has very good potential and it is the fastest growing

energy source.The future looks bright for wind energy because technology is

becoming more advanced and windmills are becoming more efficient.

Price of wind power is coming down. Energy cost trends:-

1979:- 40 cents/kW

2000:-4 - 6 cents/kWh

2004:-3 – 4.5 cents/kWh

Reference:-Wind power- Wikipedia: en.m.Wikipedia.org/wiki/wind_power www.windpower.org www.kidwind.orgNational geographic: environment.nationalgeographic.com

THANK YOU