http://www.etfoundation.org/dcpc2008.html

FIRST PLACE Engineered Products: Gorlov Helical Turbine (GHT), submitted by Mark Cosby of Lucid Energy Technologies, LLC The winner in the Engineered Products Category was Mark Cosby of Lucid Energy Technologies, LLC for his Gorlov Helical Turbine (GHT) design. This hydrokinetic electricity generation device is another example of how aluminum is an exceptionally superior material to use in green products. The GHT has the ability to provide electrical power to remote areas around the world, so long as there is a moving water way. This free-flow turbine is self-starting, which reduces the need for starting motors, light-weight, rust-proof, and 100-percent recyclable.

From “ET, the Educational Foundation for Aluminum Extrusion”