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Mercedes on 05 15th, 2012 |
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Advocates see a multitude of fuel solutions in electric cars
To kick its addiction to oil, the United States needs a raft of alternatives; no single alternative is likely to replace such an entrenched market any time soon. But electric car advocates at the Electric Vehicle Symposium held recently in Los Angeles say battery-powered cars are the one alternative that can meet all needs. Electricity isn’t a fuel per se, only an “energy carrier.” To generate electricity, you have to produce power from some other fuel source, such as coal, oil, and nuclear, or harness energy from renewable source, such as wind, hydro, or solar. Interestingly, this flexibility answers some big concerns of alternative-fuel critics. In covering the alternative fuel movement, we often encounter pushback from people who say they don’t know how this or that fuel will ever make sense where they live. Some say ethanol won’t work because there are no E85 pumps in much of the country, and the average price is often higher than gasoline once you factor in ethanol’s lower energy content. Yet in the upper Midwest, there’s no shortage of ethanol stations, and the fuel sells for significantly less than gasoline. ( Learn more about ethanol .) Others note that natural gas is not available in their region, and some report that electricity is produced from coal where they live. Looked at holistically, it seems likely that such arguments may break down along regional lines: Ethanol may make sense close to where excess corn is grown. Electricity is cleanest in regions with abundant renewable supplies. Like electricity, hydrogen can be made from a variety of feed stocks, including fossil fuels and renewable resources, but costs are still high and vary dramatically by feedstock and region. But it’s hard to sell different cars running on different types of fuel across the country. Electric cars can bridge this gap, say supporters, because electricity is only an energy carrier. You could sell battery-electric cars across the country, then make electricity from different sources, depending on what makes the most economic sense in each location. From where I sit, that seems a much more appealing solution for consumers than buying a car that effectively has regional ties due to the specialized refueling infrastructure. America...