The ribbon drive generation apparatus is comprised of a ribbon-like curved shape, composed either of metal or other suitable material, attached to a central axle with the complete apparatus being contained in a tube (10) having a constant diameter for the length of the tube. A front portion of the tube has a pivot or tether (18) and the rear portion of the tube has a drag means, such as fins (16), so as to cause rotation of the tube until it is oriented parallel to the flow. In another embodiment of the present invention, the electrical output of the ribbon drive generation apparatus is connected to a storage battery so as to store energy in times of high flow and make up for generating deficiencies during times of lesser flow. In yet another embodiment of the present invention, plural generating stages are serially arranged to adapt to flow variation and provide smooth start-up. Bypass vents and coupling means are located between each stage. Flow operates a first stage and exits via the bypass until a sufficient rotation is achieved. The coupling is then engaged and the bypass closed in order to operate the subsequent stage. In this manner, the generator of the present invention can be operated in stages.