NOVELTY - The assembly has a pair of wind turbines mounted side-by-side on a floatable support e.g. pontoon boat. Each of the wind turbines includes inner and outer sail wings rotating in response to wind moving about the sail wings. Each of the sail wings has a pitch, where the pitch of the sail wings of one of the wind turbines is opposite to the pitch of the sail wings of the other wind turbine. Electrical generators (234, 235) are mounted in engagement with the wind turbines for generating electricity in response to the rotation of the wind turbines. Lateral thrusters are mounted to the support.    USE - Twin wind turbine assembly for use on a large water body e.g. ocean and large lake, for generating electricity.    ADVANTAGE - The floatable support is capable of floating on the surface of the large body of water, so that the assembly can float on the surface of the large body of water where the atmospheric wind usually is of higher velocity and more predictable than the atmospheric wind over a land mass, by utilizing the support in an inexpensive manner. The lateral thrusters are mounted to a stern of the floatable support, so that anchors stabilizes a bow of the floatable support while the lateral thrusters tend to swing the stem in alignment with the bow and atmospheric wind, thus assuring that a turbine wheel more directly faces the oncoming atmospheric wind, and causing efficient rotation of the turbine wheel and the assembly to effectively generate electricity. The sail wings of one wind turbine include pitches opposite to the pitches of the sail wings of the other wind turbine to balance the gyroscopic effects of the wind turbines.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an electrical generator, and an outer perimeter rim that drives the generator through paired wheels engaging a perimeter rim of a wind turbine.    Perimeter rim of turbine wheel (226)    Outwardly facing surfaces of perimeter rim (228, 229)    Rubber tires (230, 231)    Electrical generators (234, 235)    Gear boxes (236, 237)