Posted: 02.14.2011

A Vermont brewery is giving new
meaning to the idea of green beer.

Magic Hat Brewing Co., of South Burlington, is the first site to
use a device that turns spent grain from the brewing process into
natural gas that is then used to fuel brewing operations.

The 42-foot tall anaerobic methane digester, installed last
summer, extracts energy from the spent hops, barley and yeast left
over from the brewing process. It also processes the plant's
wastewater, saving the brewer two ways: waste disposal and natural
gas purchasing.

It's the brainchild of Eric Fitch, CEO of PurposeEnergy, Inc.,
of Waltham, Mass., a renewable energy company.

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