ALL ABT HOW ELECTRICITY IS GENERATED THROUGH WINDMILL

1. Electricity Generated by
Windmill
Harnessing the Power of Wind for
Sustainable Energy

2. Index
1. Abstract
2. Introduction to Wind Power
3. How Windmills Work
4. Advantages of Wind Power
5. The Drawbacks of Windmills
6. Global Trends in Wind Power
7. Challenges of Wind Power
8. Future Outlook for Wind Power
9. Types of Wind Turbines
a. Horizontal-axis wind turbines (HAWT)
b. Vertical-axis wind turbines (VAWT)
c. Darrieus wind turbines
d. Savonius wind turbine
10. Advantages of Windmill over Hydropower
a. Cost-effectiveness
b. Environmental impact
9. Conclusion

3. Abstract
● Wind power is one of the most promising
sources of renewable energy.
● It generates electricity without emitting
greenhouse gases or other pollutants.
● This presentation will explain how windmills
work and their contribution to our energy
needs.
● We will also discuss the advantages and
challenges of using wind power as a source
of electricity.

4. Introduction to Wind Power
● Wind power is a clean and sustainable form of renewable energy that
generates electricity by harnessing the power of wind. This has the
potential to significantly reduce carbon emissions and is becoming
increasingly popular.
● Wind turbines are the devices used to capture the kinetic energy of
the wind and convert it into electrical energy. They consist of a rotor,
blades, a nacelle, and a tower, with the rotor and blades responsible
for capturing the wind energy and the nacelle containing the
generator and other components that convert the mechanical energy
into electrical energy.

5. How Windmills Work
● The blades capture the wind's kinetic energy
and turn a rotor connected to a shaft.
● The shaft drives a generator that produces
electricity.
● Wind turbines can be installed on land or
offshore in areas with high wind speeds.

6. Advantages of Wind Power
● It is abundant and free, unlike fossil fuels
that need to be mined or extracted at great
cost.
● It does not produce air or water pollution,
reducing our carbon footprint and improving
air quality.
● It creates jobs in manufacturing,
installation, maintenance, and operation of
wind turbines.

7. The Drawbacks of Windmills
● Wind turbines have improved, but they still
have a limited electricity generation capacity.
● Changes in weather patterns can affect the
reliability of wind turbines, making them an
unreliable source of electricity.
● Windmills can be a hazard to birds and other
wildlife, causing injury or death.

8. Global Trends in Wind Power
● China is the world's largest producer of wind
power with over 280 GW installed capacity
as of 2020.
● India plans to achieve 60 GW of installed
wind power capacity by 2022 under its
National Action Plan on Climate Change.

9. Challenges of Wind Power
● Wind turbines can cause noise pollution and
visual impact, affecting wildlife habitats and
scenic landscapes.
● They require large land areas or offshore
sites that may conflict with other uses like
agriculture or fishing.

10. Future Outlook for Wind Power
● Advances in technology are making wind
turbines more efficient, reliable, and
affordable.
● Storage solutions like batteries or hydrogen
fuel cells can help address intermittency
issues.
● Digitalization tools like sensors, analytics,
and machine learning can optimize
operations and maintenance.

11. Types of Wind Turbines
● Horizontal-axis wind turbines (HAWT)
● Vertical-axis wind turbines (VAWT)
● Darrieus wind turbines
● Savonius wind turbines

12. Horizontal-axis Wind Turbines (HAWT)
● Most common type of wind turbine
● Blades rotate on horizontal axis, facing the
wind
Vertical-axis Wind Turbines (VAWT)
● Blades rotate on vertical axis, perpendicular
to the ground
● Can have straight or curved blades

13. Darrieus Wind Turbines
● Cylindrical rotor with curved blades that
resemble an eggbeater
● Operates well in low-wind conditions
Savonius Wind Turbines
● Vertical axis wind turbine design
● Suitable for low wind speeds and compact
spaces

14. Advantages of Windmill over Hydropower
A comparison of two renewable energy sources

15. Cost-effectiveness
● Windmills are generally more cost-effective
than hydropower plants as they have lower
construction and maintenance costs.
● Hydroelectric dams require a large
investment upfront, which makes them less
accessible for smaller communities or
businesses.

16. Environmental impact
● Hydropower plants can cause significant
environmental damage by disrupting river
ecosystems and affecting fish populations.
● Wind turbines, on the other hand, have a
minimal impact on the environment as they
do not produce any emissions or waste.

17. Conclusion
● Windmills have many benefits when it comes to generating electricity.
They are a renewable energy source, meaning they will never run out of
fuel. This means that once the windmill is installed, it can be used to
generate electricity for many years. Windmills are also relatively
inexpensive to install and maintain, making them a great choice for
areas where electricity is not easily accessible.
● Windmills also offer a great way to generate electricity in remote areas.
They do not require any infrastructure or power lines, making them ideal
for areas that are not connected to the grid. Windmills are also much
quieter than other energy sources, making them a great choice for
areas where noise pollution is a concern.