Hoffland Environmental Inc. is constructing a renewable energy project on White Oaks Farm in North Carolina, focusing on hog manure as a fuel source.

The project, "Hoffland Biogas," plans to use a process that "utilizes a state-of-the-art system of anaerobic digestion to create a biogas that, in turn, is cleaned and sent to an engine/generator that supplies power to the grid," according to the company. The result produces no air pollution and solid waste is handled on site.

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The process has been used to successfully generate electricity in Europe for three years, according to Hoffland President Robert O. Hoffland.