Photos: Barnyard energy

Guess what's under the tarp? Seven acres of fresh cow manure. Gallo right now has a mesophilic, or ambient temperature, digester. The company, however, is also building a thermophilic one that creates energy by heating manure up to 130 degrees and mixing in the right microbes.

Gallo Farms

About Bill Detwiler

Bill Detwiler is Managing Editor of TechRepublic and Tech Pro Research and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop supp...

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