EnTech Solutions and Northern Biogas to Build Agricultural Biodigester with Support from Dane County Leadership

Clean energy provider EnTech Solutions has partnered with Northern Biogas to reutilize an anaerobic biodigester facility previously producing electricity to now produce clean RNG using agricultural waste from four local dairy farms.

The companies have full support from the leadership of Dane County, Wisconsin.

Digesters are an important part of managing manure and organic waste from dairy farms.

This facility incorporated advanced technology, consisting of a nutrient concentration system that gives out clean water to the region’s Yahara Watershed while also minimizing phosphorus runoff to nearby waterbodies.

“Water and soil are essential to life on earth, and farmers continue to look for opportunities to improve water quality and soil health,” said Jeff Endres, co-owner, Endres Berryridge Farms. “Northern Biogas and EnTech Solutions have opened up high-tech opportunities around dairy manure, working with area farmers to harvest the methane and return the fiber and liquid nutrients back to the farmers for use as organic fertilizer and bedding, maximizing all aspects of the nutrient cycle.”

EnTech Solutions incorporated a renewable energy microgrid at the facility, featuring solar panels and batteries which provide more than 2.8 MW of clean energy generation, the equivalent of powering more than 400 homes.

This creates a carbon-negative process that results in RNG with a lower carbon intensity (CI) score.

“Partnering with EnTech Solutions, Northern Biogas and our family-owned dairy farms paves the way for home-grown renewable energy, cleaner lakes, and keeping our farm families milking cows for generations to come,” said Joe Parisi, Executive, Dane County. “This new investment in cutting-edge technology benefits both the local environment and our farm economy while combating climate change.”

“Using our experience in engineering and energy technologies, we were able to convert the Middleton facility to an even more efficient producer of clean RNG, and accomplished this in a compressed timeframe,” said Scott Romenesko, President, EnTech Solutions. “We know this is a replicable process that we can apply to help other biodigesters achieve their environmental goals.”