1. WIND ENERGY

2. Wind Energy
A wind farm requires
roughly 17 acres of land
to produce 1 megawatt of
electricity.

3. Wind Turbine Basics
• Wind power is the fastest-growing source
of renewable energy
• Basic principle is the conversion of the
kinetic energy of moving air into electrical
energy
• Use large, specially shaped blades to
"catch" moving air
• The wind causes the blades to rotate
• Their motion spins an attached electrical
generator, producing electricity

4. Cont…
• the faster the wind is blowing
• the more energy is transferred to the
blades
• and generator and converted into electrical
power

5. TYPES

6. Types
• Horizontal wind turbine
• Vertical wind turbine

7. Types: horizontal
• the blades rotate on an axis that is parallel
to the ground
• fixed at the top of a support tower
• three-blade design seen at large-scale
wind farms uses the horizontal-axis design

8. Types: Vertical
• Vertical-axis turbines fix the blades to the
sides of a pole running perpendicular to
the ground
• with the electrical generator placed at the
support base
• The blades can be placed at any desired
height on the pole

9. CAPACITY

10. Capacity
• A single wind turbine can be small enough
to provide partial power to a single home
• large enough to power a small town
• The larger the rotor, the more wind
• and therefore energy is captured by the
assembly
• residential turbines are rated for a
maximum capacity below 30 kilowatts
• the largest turbines can generate almost
five megawatts

11. PROS & CONS

12. Pros:
• do not require the burning of fuel to
operate and generate
• Landowners can also receive rent
payments
• this can prove to be a valuable year-round
supplement to a farmer's income
• excess power can also sell to the power
company.

13. Cons:
• an inadequate energy source to fulfill
requirements
• Residents may be bothered by turbines'
noise
• horizontal-axis rotating blades pose an
inherent threat to birds

14. ARTICLE
How to choose a
wind turbine

15. Introduction
• Wind is an enormously potent source of
clean energy
• the wind resources in the Rocky Mountain
and Great Plains regions
• potentially meet up to 25 percent of the
power needs of state
• Wind turbines aren't just for farmers
• a home wind energy system can be
relatively unobtrusive

16. STEP 1:
• to ensure you're allowed to install a wind
turbine on your property.
• Be sure to get a full rundown on height
restrictions.
• make sure you check with your
homeowners association to avoid
complaints from your neighbors

17. STEP 2:
• Conduct an energy audit of your house
• as well as where your home may be
wasting energy
• Add up the watts you use for all your
energy needs on a monthly basis
• consider whether you're over-consuming
energy by using brighter light bulbs, an old
heating system or a higher thermostat
setting than necessary, for instance.

18. STEP 3:
• Reducing your consumption may allow
you to install a less expensive and smaller
wind energy system.

19. STEP 4
• Decide where you'll install your turbine and
how it will be mounted
• Avoid placing the turbine on your rooftop
• Determine the typical direction of wind at
your location
• and locate a spot upwind from buildings
and trees to ensure maximum wind flow
• Your turbine will also need to be at least
30 feet above any wind barriers sitting
within 300 feet
• These location specifics will help to
determine the size of your turbine.

20. STEP 5
• Contact a nearby airport, weather station
or university to learn the average wind
speed in your area
• Keep in mind that wind speed increases
with the height of the tower as well
• consider whether wind may slow or speed
up in your specific location
• AEO = 0.01328 x D [to the second power]
x V [to the third power],
• Complete this equation for several rotor
sizes to determine which may work best.

21. STEP 6
• Ask the dealer to calculate how each
model would perform in your specific
location
• confirm they have at least a five-year
warranty and strong testimonials
• Also, make sure they come with all
necessary component parts
• so they'll be ready to install and use.