Monday, 3 May 2010

Article On Green Energy

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article on green energy
Where's an article describing how hybrids can use renewable energy to be more "green"?

I just read an article on how nuclear power can be used to produce biofuel instead of using fossil fuels to produce it, thus lowering co2 emissions. I'm looking for an article like explaining how a different renewable energy source could also cut down emissions associated with hybrids. Anyone know of any? Please and thanks!


The "green" wars are played with words and arguments as well as facts and figures. Cherry picking information is a favorite pastime and everywhere you will see someone arguing from a point of view rather than an analysis of information.

Your use of the phrase "emissions associated with hybrids" is curious. Current hybrids are gasoline and electric. No widely marketed hybrid uses grid electricity. They don't presently plug in. They use gasoline to produce electricity for an electric drive. The "emissions associated with hybrids" are then based upon fuel use in a internal combustion engine. Diesel is not usual for a hybrid drive as there are fewer advantages going from diesel to hybrid than from gasoline to hybrid. Therefore the "renewable energy source" you are looking for must produce the biofuel ethanol and not biodiesel and any article that discusses a renewable way to produce ethanol should satisfy your search.

You could use the sun to produce biofuels and reduce the use of fossil fuels. You could use geothermal power to produce biofuels and reduce fossil fuels. And you could even use moonlight to produce biofuels and reduce fossil fuel use. All might reduce CO2 emissions to some degree. But being green (I have never liked the term) may imply more than just a measure of emissions.1 The sun may take up a lot of land. Geothermal may contaminate water supplies or cause Earthquakes, moonlight may be inadequate, and nuclear power may have by products no society could guarantee could be made safe before the decline of the civilization. The perfect answer today may be no more than a best fit that is dismissed tomorrow in light of new information.

Perhaps one of the best examples of renewable production of ethanol is in Brazil where the initial feedstock of sugarcane is also provides energy to produce the product: 1 This article (2) has a great comparison table that shows why the Brazilian ethanol production from sugarcane is more efficient and renewable the the US ethanol production from corn. Here is some "literature" put out by the Minnesota Corn Growers association that you may find helpful.3

A more directed answer could be made if you had included any references to the original article.


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