I commented several times on the stupidity of corn-based ethanol as a substitute for gasoline. It’s a very inefficient process and provides fuel at the expense of food. Already ethanol is raising the cost of growing livestock.
However, cellulosic ethanol (alcohol made from the other parts of plants, not from the edible portion) has great promise.
With Cellulosic Ethanol, There Is No Food Vs. Fuel Debate. Science Daily.
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Ralph Maughan
Dr. Ralph Maughan is professor emeritus of political science at Idaho State University with specialties in natural resource politics, public opinion, interest groups, political parties, voting and elections. Aside from academic publications, he is author or co-author of three hiking/backpacking guides, and he is past President of the Western Watersheds Project.
Ralph,
There is “great promise” only if you accept the thin claims and speculations of the cellulosic ethanol enthusiasts. The logistics of collection and transportation will be complicated, and the energy balance of the more complex processes (assuming that they can work) is unknown. The other major consideration is the long-term productivity of lands from which gigatons of biomass are removed. Other environmental considerations could also be significant.
See today’s :
http://i-r-squared.blogspot.com/2007/03/logistics-problem-of-cellulosic-ethanol.html
for additional information and a related URL.
r.
Well, my tentative conclusion would have to be that there is no possibility that corn ethanol will make a net beneficial contribution to energy supply, taking into a account all costs.
There is a chance that use of waste plant material will despite great obstacles at present.
If all of the money “invested” in Iraq was devoted to hydrogen research we would probably already be very close to switching over…
The biggest hurdle the cellulosic ethanol producers face at the moment is the cost of the enzyme needed to breakdown the cellulose into a sugar. While everyone from private industry to the US govt is throwing money at these research projects, we have yet to hear how they are going. I posted last week on this topic specifically in the article, “Cellulosic Enzyme Cost Reduction is still a WIP”.
Taking away our dependence from corn requires a different ethanol strategy. One way to go about this is to empower local communities to produce ethanol from the best available feedstock. I wrote a long article yesterday on the benefits of decentralizing, or “regionalizing” alternative energy as it relates to ethanol production.
Not only does this support the local economy, but it reduces the strain on major ethanol crops like corn.
I frequently write about the business side of alternative energy on: Energy Spin: Alternative Energy Blog for Investors-Served Daily
Cheers,
Francesco DeParis