Look ma, no wires: charging plug-in vehicles, without the plug
Friday, July 30th, 2010
Earth2Tech has an interesting post here (hat tip to Katie) about a company called Evatran that has developed a system for charging electric vehicles that doesn’t require a plug or a charging cord. The idea is that you would drive onto a parking block, which would sit permanently in your driveway or a parking spot. Once the front wheels are on the block it will establish a wireless proximity link with the vehicle and begin some form of magnetic induction charging. Now that’s convenient, and it would make it far easy for folks to dump their internal combustion engine vehicle and go electric. The only problem is that this form of charging is inefficient, and the idea of one day having millions of cars charging through this method but throwing away 10, 20 or 30 per cent of the energy for the sake of convenience is a non-starter (unless of course we’ve developed too-cheap-to-meter nuclear fusion and have more emission-free electricity than we need — i.e. a non-starter). Still, if we can get 95-plus per cent efficiencies some day it will be a welcome addition to electric-vehicle infrastructure.
BTW: For anyone looking for the latest assessment of wireless power transfer technology, check out this fairly recent and comprehensive study by the Electric Power Research Institute.

Ottawa-based Plasco Energy Group says its energy-from-waste technology is now proven and it’s time to move to commercial delivery. To help in that effort, it
Honda has always poo-pooed the industry-wide move to electric and plug-in hybrid vehicles, stubbornly sticking to the idea that fuel-cell vehicles were the future. For example, it has been highly critical of GM’s Volt concept. Takeo Fukui, the company’s president, said in 2008 that he saw “no value in developing plug-in hybrid vehicles.” As recently as this May, the company’s head of research and development, Tomohiko Kawanabe, said it was questionable whether consumers will accept electric vehicles and the “annoyance” of limited driving range and the need to charge the vehicles. “We lack confidence (in the business),” he said. “We are definitely conducting research on electric cars, but I can’t say I can wholeheartedly recommend them.”
Tyler Hamilton is associate publisher and editor-in-chief of Corporate Knights magazine and former business columnist for the Toronto Star. This blog is a personal project started in April 2005.