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Madison manure digester sold to Calif. company

Posted at 1 p.m. on July 25, 2019

The Brillion News

MADISON – Brightmark Energy, a San Francisco-based waste and energy development company, announced Thursday, July 25, that it has purchased an anaerobic digester northwest of Madison that will convert 90,000 gallons per day of dairy waste from three local farms into biogas and other useful products.

After planned installation of gas upgrade equipment is completed, the project is projected to produce enough renewable natural gas (RNG) to replace at least 50,000 MMBtu of conventional natural gas each year.

Brightmark Energy purchased the digester from Clean Fuel Partners, which will continue its work on the project by providing operations and maintenance support.

A complete story will appear in the August 1 print edition of The Brillion News.


The Dane County facility is the first such facility in the United States designed to receive biogas from multiple off-site locations and connect that renewable gas with RNG stations locally and across the nation.



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