Pterofin is an innovative approach at creating power using natural wind or water currents based on simple biomimicry; ie, the natural movements displayed by millions of species that have evolved over billions of years. Pterofin products are controlled by a simple counterbalance system that synchronizes the wings’ position and speed with a mechanical leverage point on the body of the device. The outcome is a coordination of harmonizing the wings pitch angle to a natural frequency of a fluids specific velocity, allowing Pterofin to be extremely efficient at pumping water or generating electricity. A rotational control system allows the wing or wings to sweep back into the direction of the current, bringing Pterofin power to a halt and acting at that point simply as a weather vane. This makes it much more aerodynamic in high wind situations and gives it a far more streamline profile than any turbine on the market. We like to think it knows how to hibernate or go "dormant" to avoid stress.