THE POWER OF THE WIND

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• THE POWER OF THE WIND

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The wind a key factor in world economyWind
needs clean, renewable and competitive sources of
energywind is a very competitive alternative
to energy from fossil fuels.
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RESPECT FOR THE ENVIRONMENT
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THE VESTAS VISION

• Vestas is the world leader in wind technology.
• Its core business regards the development,
  manufacture, sale, marketing, and maintainance of
  installations that use wind energy to generate
  electricity.

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Life cycle assessment of the wind turbine
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OptiTip OptiSlip OptiSpeed
What are them?
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OptiTip

• A microprocessor-controlled pith regulation
  system which ensures continuous and optimal
  adjustment of the angles of the blades in
  relation to the prevailing wind.

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OptiSlip

• A generator system that allows both the rotor and
  the generator to vary their speed by up to 10
  during wind gusts, maximising power quality and
  reducing the strain on turbine components.

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OptiSpeed

• A further development of the OptiSlip system.
  OptiSpeed allows the speed of revolution of both
  the rotor and the generator to vary by up to
  approximately 60 per cent and optimises energy
  production, especially in modest winds. The
  turbine starts to generate power to the grid
  already at 4 m/s.

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• The OptiTip and OptiSpeed systems make it
  possible to optimise the solution to the often
  contradictory requirements for high output and
  low sound levels.

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What types of turbines does Vestas manufacture?

• Vestas began wind turbine manufacturing in 1979
  and has played an active role in the dynamic wind
  turbine industry ever since.

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Where are the turbines manufactured?

• The manufacturing of wind turbines based on
  Vestas Technology takes place at 12 different
  locations i Denmark, two in Germany, one in
  Italy, one in Scotland, one in Tasmania
  (Australia), one in India, two in Spain, one in
  Norway, two in Sweden and one in England.

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How many wind turbines has Vestas erected?

• Since 1999, Vestas has experienced a notable
  increase in MW sales, from 653 MW in 1999 to
  1,812 MW in 2003.
• The tendency is for the erection of fewer but
  more productive turbines. This means that from
  2001 to 2002 and from 2002 to 2003, the company
  actually erected fewer turbines, but those
  erected have greater capacity.

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Over the past five years, Vestas has erected
the following
  Sales in number of turbines Sales in MW  
1999 843 turbines 653 MW  
2000 1,014 turbines 805 MW  
2001 1,970 turbines 1,645 MW  
2002 1,453 turbines 1,640 MW  
2003 1,369 turbines 1,812 MW  
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At what wind speeds can Vestas wind turbines
generate power?

• Vestas wind turbines typically start to generate
  power at wind speeds of around 4 m/s and normally
  cut out when wind speeds reach 25 m/s.

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What does a wind turbine cost?

• The price of wind turbines depends on many
  parameters, for example the turbine type, the
  foundation type, the location of the site, and
  transportation. Therefore, it is not possible to
  give a general price on Vestas wind turbines.

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What does a Vestas wind turbine look like
inside?
1. Hub controller 10. Blade hub
2. Pitch cylinder 11. Blade bearing
3. Main shaft 12. Blade
4. Oil cooler 13. Rotor lock system
5. Gearbox 14. Hydraulic unit
6. VMP-Top controller with converter 15. Machine foundation
7. Parking break 16. Yaw gears
8. Service crane 17. OptiSpeed generator
9. Transformer 18. Ultra-sonic sensors