Butter has a heating value approaching coal (30 MJ/kg).  But the real question is how much energy is spent obtaining a kg of butter?  Net gain or loss?  

Ron Bishop, P.E.
Solid Waste Professional Engineer
Alachua County Public Works Department
Work: 352-548-1279
Cell:   352-213-4818
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-----Original Message-----
From: Bioenergy and Sustainable Technology Society [mailto:[log in to unmask]] On Behalf Of SUMMERFIELD,KAITLYN E
Sent: Thursday, July 29, 2010 12:38 AM
To: [log in to unmask]
Subject: Butter could power diesel vehicles

BEST,

We are constantly searching for new and innovative ways to make 
biofuels a feasible and economically viable commodity. This 
article explores the possibility of using butter as a biodiesel 
fuel source.  This novel idea that takes the butter fat and 
converts it into the fatty acid esters that constitute biofuels 
may help us reach our 2022 goal of producing 36 billion gallons of 
biofuel.-kaitlyn

http://www.upi.com/Science_News/2010/07/28/Study-Butter-could-power-diesel-vehicles/UPI-19071280349266/
 July 28,2010
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SUMMERFIELD,KAITLYN E