The wind: a key factor in world economy
Wind needs clean, renewable and competitive sources of energy;
wind is a very competitive alternative to energy from fossil
fuels.
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.
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.
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.
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.
The OptiTip® and OptiSpeed® systems make it possible to
optimise the solution to the often contradictory requirements for
high output and low sound levels.
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.
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.
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.
Over the past five years, Vestas has erected the following:
Sales in number of
turbinesSales 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
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.
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.
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 crane17. OptiSpeed™
generator
9. Transformer 18. Ultra-sonic sensors
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