Thursday, January 10, 2008

Grass
It seems W was on to something when he was talking about switch grass. Scientific American has an article about ethanol production. Chef is no fan of ethanol production from corn. It is bad policy and raises the price of beer!
But yields from a grass that only needs to be planted once would deliver an average of 13.1 megajoules of energy as ethanol for every megajoule of petroleum consumed—in the form of nitrogen fertilizers or diesel for tractors—growing them. "It's a prediction because right now there are no biorefineries built that handle cellulosic material" like that which switchgrass provides, Vogel notes. "We're pretty confident the ethanol yield is pretty close." This means that switchgrass ethanol delivers 540 percent of the energy used to produce it, compared with just roughly 25 percent more energy returned by corn-based ethanol according to the most optimistic studies.

The 25 percent is at least double the real number. And that does not include other environmental factors like fertilizer run off.

The U.S. Department of Energy (DOE) is partially funding the construction of six such cellulosic biorefineries, estimated to cost a total of $1.2 billion. The first to be built will be the Range Fuels Biorefinery in Soperton, Ga., which will process wood waste from the timber industry into biofuels and chemicals. The DOE is providing an initial $50 million to start construction.

What do you want to bet that W's friends are getting a chunk of that money. I am hoping the air car takes off myself.

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