Cheap natural gas a challenge for cogeneration plant

In 2006 when a Minnesota group announced a $60 million biomass cogeneration plant, spot prices for natural gas topped $13 per million Btu. By the time the power plant began operating in May 2009, they had plunged below $4. Operators say they’ve stayed viable by cutting costs and upgrading efficiency.

Short’s Brewing ties seasonal beers to Clean Water Campaign

Short’s Brewing Company in Bellaire, Mich. released its American Double IPA “Superfluid” this spring. (Photo: Short’s Brewing Company)Short’s Brewing Co. in Bellaire, Mich. is using the creation of one of its popular summer beers to draw attention to an oil pipeline that the company fears could taint the waters of the Great Lakes.