Date:         Fri, 21 Apr 2006 16:50:36 -0400
Reply-To:     Daniel Erlandson <danoer1@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Daniel Erlandson <danoer1@EARTHLINK.NET>
Subject:      Re: Ethanol Production Costs
Comments: To: jjolson@GWTC.NET
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

Jeff,

I believe that the Pimentel document that you have supplied the link
to (Thanks) has been criticized as using out of date figures for the
efficiency of ethanol figures.  I have not looked into the actual
figures in question, nor am I disputing the issue of Ethanol being
just one strategy. Just commenting that the Pimentel research appears
to have been discredited.

Dan Erlandson

Dan's Van
91 GL
200,351 miles and kicking

Date:    Fri, 21 Apr 2006 08:01:34 -0600
From:    Jeffrey Olson <jjolson@GWTC.NET>
Subject: Friday - Ethanol Production Costs

It's interesting to read how ethanol is being touted as one major avenue
to energy independence.  While it is but one strategy amongst many,
there is a wealth of literature out there that demonstrates more energy
is consumed producing a gallon of ethanol - 71% by one 1998 source -
than is generated when ethanol is burned.

http://hubbert.mines.edu/news/Pimentel_98-2.pdf

With the rise in gasoline costs, ethanol becomes more attractive.  Yet
there is substantial use of oil based products in corn production and
those costs are rising too.  It would be interesting to see at what
point the cost of a gallon of gasoline and a gallon of ethanol is the
same.  Perhaps we've already reaching the tipping point...?

Jeff Olson
Martin, SD