The Future of Our Transportation System is Electric
Written on 06/15 at 07:03 PM by Andy Posner
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Filed under: Huffington Post environment
I wrote this article for the Huffington Post. It can be seen in its original context here.
Here are two interesting points: electric motors are inherently more efficient (and simpler) than internal combustion engines (ICE), and it is far easier to produce green electrons than it is to produce green gallons of liquid fuel. Both augur well for an increasingly electrified transportation system.
The first point is incontrovertible: electric motors can easily reach an energy conversion efficiency of 90%, while ICE’s have an efficiency of around 20%. Simply put, that means that for a given unit of energy, an electric motor will produce more power. What’s more, electric drive trains are far simpler, requiring 1/10th as many parts as a gas car (no spark plugs, fuel tank, transmission, muffler, etc.).
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