Flytende vindmolle og fremgangsmate for installasjon av, inngrep eller demontering av nevnte molle

摘要

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.