Floating foundation for wind turbine generators

A floating foundation for wind turbine generators comprising:

• a tower, a first support leg pivotally connected to a midsection of the tower, and a second support leg pivotally connected to the midsection of the tower;
• means for connecting the first support leg to the second support leg;
• a first support leg buoyancy member fixed to a lower end of the first support leg adapted to be completely submerged;
• a second support leg buoyancy member fixed to a lower end of the second support leg-adapted to be completely submerged;
• a tower buoyancy member fixed to a lower end of the tower adapted to be completely submerged;
• a mooring line connected to the floating foundation around which the floating foundation is adapted to weathervane;
• a nacelle platform on the top end of the tower for supporting a nacelle;
• a nacelle tilting device for tilting the nacelle platform;
• an auxiliary support leg connection system comprising:
• a lateral support rod connected between a first sleeve connected to the first support leg and a second sleeve connected to the second support leg;
• and
• a support strut connected between the lateral support rod and the tower midsection;
• wherein the tower, the first support leg and the second support leg form a tripod-like structure;
• wherein a bottom part of the midsection is located a distance above the waterline;
• wherein, during operation, the angle between the tower and the first support leg is 20-100 degrees, and the angle between the tower and the second support leg is 20-100 degrees, and the angle between the first support leg and the second support leg is 20-100 degrees;
• and
• wherein a volume between the tower, the first support leg and the second support leg is in the shape of a tetrahedron between the midsection the waterline.