Näsudden III. ABB-ScanWind build 3 MW windmill with new technology
The plant will be equipped with new technology designed for
large offshore windpower stations.
Näsudden III, however, will be located on shore in order to facilitate evaluation and testing.
The new wind energy concept, Windformer, has been developed
by ABB and consists of a
direct-coupled, high-voltage generator with a permanent-magnet rotor. Neither a gearbox nor
a transformer is required with this design, which is expected to reduce energy losses, lower
operation and maintenance costs and longer lifetime. This means a higher energy supply to
the network and considerably lower generation costs.
Näsudden III is part of Vattenfall¹s investments
in sustainable energy solutions and will be
financed by Vattenfall, the Swedish National Energy Administration and ABB. It is estimated
that the windpower station will be in operation 2002, providing that all the necessary permits
³The project is part of our windpower strategy, which
in part focuses on large offshore
windpower stations with the aim of achieving competitive financial viability. At present,
we are also preparing a permit application for three to seven wind powerplants in Kalmarsund,²
says Göran Dalén, who is in charge of Vattenfall¹s windpower development programme.
Vattenfall has been a forerunner in the construction and operation
of large windpower stations.
Näsudden I, with an output of 2 MW, was built in the early 1980s. It was replaced ten years
later by Näsudden II, one of the world¹s largest windpower plants with an output of 3 MW.
Rated output: 3 MW, at a wind speed of 13 m/s
Wind range: 5-28 m/s
Estimated annual generation: 8.2 GWh, based on an annual mean wind of 8.1
m/s That is equivalent to the electricity required to heat 410 detached
houses or the domestic electricity consumed by 1 640 households.
Hub height: 70 meters
Rotor diameter: 90 meters
Photo and copyright: Gunnar Britse