High speed rail is key to jobs and energy security

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Unformatted text preview: rid. Since electricity is an energy carrier, it can be generated from a mix of sources that incorporate the growing share of geothermal, hydro, solar, and wind energy that will be produced in the years ahead. And because electric motors are three to four times more efficient than internal combustion engines, an immediate improvement will precede introducing renewable energy into transportation.Grid-connected traction offers the only realistic option for significantly reducing oil use in transportation over the next 10 years.If such a shift does not begin during this decade, the risk of a global economic collapse and/or geo-political conflict over the world's remaining oil reserves would become dangerously elevated. Making a significant dent in transportation's oil addiction within 10 years is sooner than fuel cells, biofuels, battery-electric vehicles and other alternative energy technologies will be ready to deliver change. Biofuels that could power aircraft now cost hundreds of dollars per gallon to produce. Batteries that a big enough charge to power vehicles between cities are still too big and expensive to make electric cars and buses affordable.But gridconnected electr...
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This note was uploaded on 11/30/2013 for the course PHILOSOPHY 303m taught by Professor Tye during the Fall '12 term at University of Texas.

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