Abstract: A floating power generation assembly comprises at least three floating units (900) floating on a body of water, and at least three anchors (916) secured to a solid surface beneath the body of water, each of the floating units (900) being provided with power generation means, the floating units (900) being arranged substantially at the vertices of at least one equilateral triangle. The invention also provides ship-borne apparatus for deploying the floating units of such a power generation assembly and a novel multiple wind turbine assembly.