Late last year in Goldfield, Iowa, a refinery began pumping out a stream of ethanol, which supporters call the clean, renewable fuel of the future.
There’s just one twist: The plant is burning 300 tons of coal a day to turn corn into ethanol - the first US plant of its kind to use coal instead of cleaner natural gas…
“If the biofuels industry is going to depend on coal, and these conversion plants release their CO2 to the air, it could undo the global warming benefits of using ethanol,” says David Hawkins, climate director for the Natural Resources Defense Council in Washington.
The reason for the shift is purely economic. Natural gas has long been the ethanol industry’s fuel of choice. But with natural gas prices soaring, talk of coal power for new ethanol plants and retrofitting existing refineries for coal is growing, observers say…
“It’s very likely that coal will be the fuel of choice for most of these new ethanol plants,” says Robert McIlvaine, president of a Northfield, Ill., information services company that has compiled a database of nearly 200 ethanol plants now under construction or in planning and development.
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I just took a detailed look at this in my latest blog entry. It is the economic thing to do, and the handwriting has been on the wall. But it is an environmentalist’s nightmare.