This project will be the first characterization of the performance of a novel reactive reversible blade system designed for power generation. The reversible blade system is composed of a series of blades that can pivot around their span axis while the forces on the blades generate a torque that may be useful for power generation (Fig 6). It is theorized that as the blades rotate, drag will decrease on the system, thus allowing an increase in rotational speed and power output. The system may therefore be well suited for slow currents.