Exro’s patented technology, the Variable Input Electrical Generator (VIEG), is a unique direct-drive generator technology that eliminates gearbox problems and improves performance of wind turbines.

Our direct-drive architecture fits straight into existing wind turbines, making it possible to eliminate the gearbox completely. Exro’s technology is currently the only direct-drive solution available to upgrade existing wind turbines in the field - and new wind turbines being manufactured - from gear-driven to gearless.

In addition, our revolutionary technology platform changes the underlying paradigm of traditional electromagnetic machines in a way that radically improves their performance. Traditional machines are designed to operate at highest efficiency at a single speed. When the source is variable, however, (such as wind, which blows at variable speeds), traditional machines lose efficiency. Exro’s VIEG technology alters the electromagnetics of the machine in response to changes in speed and torque. This novel approach unlocks dramatic improvements in overall efficiency for wind turbines and, in fact, for a wide range of clean-tech applications.

Learn more about Exro’s patented technology, the Variable Input Electrical Generator, and the benefits our technology provides.