Abstract: The horizontal axis wind turbine of this invention has a space frame structure that enables a light weight blade system to force rotation of numerous small wheels into rolling contact with the surface of at least one ring that extends around the perimeter of said blade system. A portion of the wheels drive rotation of multiple small electrical generators, and air compressors (?), at a high initial RPM, in the numbers needed to produce this wind turbine's useful power output. For offshore use, a wind turbine structure as described above surmounts two horizontal toroidal members held apart by multiple vertical columns. The lower toroidal member and the vertical columns above this member float at a depth that is nearly half the column heights. Added structure enables the extraction of energy from waves transiting the vertical columns.