Greg Galitzine : Green Blog
Greg Galitzine
| Helping environmentally-conscientious business leaders choose environmentally-friendly solutions.

July 2010

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A Practical Way To Use Electric Vehicles: Commute/Reverse Commute Station Cars

July 21, 2010

Electric vehicles (EV) presently and will continue to suffer one crippling flaw for most applications: the lack of range. Note the words 'most applications' for there is an imaginative and practical means of using them that is discussed later on.

A recent National Post 'Motor Mouth' article by David Booth points out that the batteries required to move EVs generate electrical energy far less efficiently than do gasoline or other fuels.  Gasoline produces about 6,000 watt-hours/pound whereas the "most optimistic numbers" he has seen for advanced lithium-ion batteries is 110 watt-hours/pound. 

"That means good old- fashioned gasoline punches 54 times harder for the same amount of weight, the fundamental reason electric cars' ranges are so pitiful compared with those fossil fuelled," writes Booth.

Simply put: there is no way you can pack that much battery power to match what gasoline, or even less efficient fuels like compressed natural gas (used in fleet vehicles, like taxis) can produce for your typical trips.

What about the vaunted greater efficiency of electric motors?

"In the electric vehicles' defence, electric motors transmit that energy more efficiently to the road," says Booth. "Some electric motors boast 90% efficiency, while internal-combustion engines can transmit as little as 15% of their energy into vehicular motivation. However, even being generous, that means EVs face a nine- times deficit versus traditional cars."

And that doesn't take into account driving on hilly terrain.

Revive The Economy. Save The Planet. Get Efficient.

July 2, 2010

Nearly every firm, agency and especially nonprofits subscribes if not reads to the notion of doing more with less as the key to productivity, profits or achieving other desired results.

So why not take this sensible, proven concept to energy? And in the process slice the U.S. deficit, chop healthcare and other high costs, kickstart the economy and breathe and live easier?

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