We don't import electricity. We generate all of our needs with coal, hydropower, nuclear power and natural gas. Toyota's hybrid cars, like the Prius, run on both gasoline and electricity that is generated by braking and then stored in a small battery. But, says Luft, if you had a hybrid that you could plug in at night, the battery could store up 20 miles of driving per day. So your first 20 miles would be covered by the battery. The gasoline would only kick in after that. Since 50 percent of Americans do not drive more than 20 miles a day, the battery power would cover all their driving. Even if they drove more than that, combining the battery power and the gasoline could give them 100 miles per gallon of gasoline used, Luft notes.
Right now Toyota does not sell plug-in hybrids. Some enthusiasts, though, are using kits to convert their hybrids to plug-ins, but that adds several thousand dollars - and you lose your Toyota warranty. Imagine, though, if the government encouraged, through tax policy and other incentives, every automaker to offer plug-in hybrids? We would quickly move down the innovation curve and end up with better and cheaper plug-ins for all.
Then add to that flexible-fuel cars, which have a special chip and fuel line that enable them to burn alcohol (ethanol or methanol), gasoline or any mixture of the two. Some four million U.S. cars already come equipped this way, including from G.M. It costs only about $100 a car to make it flex-fuel ready. Brazil hopes to have all its new cars flex-fuel ready by 2008. As Luft notes, if you combined a plug-in hybrid system with a flex-fuel system that burns 80 percent alcohol and 20 percent gasoline, you could end up stretching each gallon of gasoline up to 500 miles.
http://www.nytimes.com/2005/06/17/opinion/17friedman.html?th&emc=th
No comments:
Post a Comment