Engineering TV interviews John McDonald, CEO of EXRO Technologies, a clean energy company that has invented, designed, and prototyped the world's first Variable Input Electric Generator (VIEG, pronounced veej). Electrical generators are very efficient when the energy source spins their shafts at a pre-specified speed and torque, but their efficiency drops precipitously when the energy source varies up and down. Rather than connecting a string of individual legacy machines together through mechanical gearing, the VIEG is a single machine made up of a series of paired coils combined with high-speed electronic switching. Current modeling estimates show double digit gains in economic output (depending on configuration) after installing a VIEG rather than a traditional generator in a typical MW class wind turbine. For more information, go to:
EXRO Technologies.
Hosted by: Lou Frenzel Videography by: Curtis Ellzey Edited by: Curtis Ellzey
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