METHOD OF INSTALLATION OF AN OFFSHORE WIND TURBINE AND COMBINATION OF AN OFFSHORE WIND TURBINE AND A FLOATING VESSEL

摘要

A tower (2) of an offshore wind turbine is composed by a first section (3) and a second section (4) and is by means of a vessel (13) transported to an installation location in a non-upright position. The first section (3) and the second section (4) of the tower (2) are during raising of the tower connected pivotally about a hinge axis (10), and the first section (3) of the tower is swung about the hinge axis (10) down into the sea to its upright position when the second section (4) of the tower is still carried in a non-upright position by the vessel (13). The first section (3) of the tower is installed on the seabed (17), and, subsequently, the second section (4) of the tower is swung about the hinge axis (10) to its upright position and locked to the first section (3) of the tower in this position.