A biogas company in Brown County that processes food waste and cow manure into methane sold for energy purposes has filed for Chapter 11 bankruptcy protection.

NLC Energy Denmark LLC, which has a plant in Denmark, Wisconsin, is seeking to restructure around $76 million in secured debt, according to documents filed August 16th in U.S. Bankruptcy Court for the Eastern District of Wisconsin.

The filing follows years of financial and technical difficulties for the biogas developer which has seen operating losses of approximately $1 million per month, court records showed.

NLC Energy Denmark was established in 2008, as NEW Organic Digestion LLC, with an existing food waste digester that produced biomethane used to make electricity that it sold.