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1. (WO2010120186) FLOATING WINDMILL AND METHOD OF INSTALLATION, INTERVENTION OR DECOMMISSIONING

Pub. No.:    WO/2010/120186    International Application No.:    PCT/NO2010/000138
Publication Date: Fri Oct 22 01:59:59 CEST 2010 International Filing Date: Fri Apr 16 01:59:59 CEST 2010
IPC: F03D 11/04
Applicants: UNIVERSITETET I STAVANGER
GUDMESTAD, Ove Tobia
GRØNLI, John
GUDMESTAD, Helge Arne
Inventors: GUDMESTAD, Ove Tobia
GRØNLI, John
GUDMESTAD, Helge Arne
Title: FLOATING WINDMILL AND METHOD OF INSTALLATION, INTERVENTION OR DECOMMISSIONING
Abstract:
The present invention relates to a floating windmill, comprising a generator house (12) with a generator and a plurality of rotor blades (13) at an upper part of an upright shaft (11), and a flotation system (1) at a lower part of said shaft (11), characterized by said floatation system (1) comprising a ballast system (6) for ballasting and de-ballasting of said windmill and thus altering the height of the windmill above water level, and further comprising a pivotal connection (14) of the blades (13) between a substantially vertical and a substantially horizontal position. The invention also relates to a method of installation, intervention or decommissioning of said windmill.