Living Up To a Standard

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

Ron Gremban is an early developer of plug-in electric hybrid (PHEV) automobiles, having helped convert hundreds of Toyota Priuses to extend their electric-only range and make them even more practical real-world automobiles. His 2008 writing on the differences between the Prius and Chevrolet’s Volt shows an ability to consider the actual physics and engineering involved rather than allowing the heat of the debate to obscure the realities. Backing from Dr. Andrew Frank of UC Davis gives further credibility to Gremban’s views. Given his demonstrated abilities and his dispassionate vision, it’s no surprise that Gremban would look at projected electric flight in ways that haven’t yet occurred to its most ardent promoters. On April 27, at the Friday evening Motors theme dinner, …

Taking it to eXtremes

Dean Sigler Electric Powerplants, Sustainable Aviation 6 Comments

“If I were to make a prediction, I’d think there’s a good chance that it is not batteries. But capacitors.”  Karl Young, CEO of eXtreme Capacitor, Inc. started his presentation at the fifth annual Electric Aircraft Symposium with these words from Tesla Motor’s Elon Musk.  The reference to capacitors superseding batteries as an energy source for electric cars came from Musk’s address at the Cleantech Forum in San Francisco on 16 March 2011. Young’s talk before the April 29 gathering in Santa Rosa, California detailed the double-layer supercapacitors his company produces, and what Young feels are the advantages these have over “traditional” lithium and other batteries.  He is “trying to overcome the issues of batteries,” including, according to Young, their …