Minnesota dairy turns cow manure into 480,000 gallons of renewable gas
A Minnesota dairy farm has launched a new facility that converts cow manure into renewable natural gas, which is then injected into interstate pipelines for use as vehicle fuel. The project uses anaerobic digesters to capture methane emissions, turning farm waste into a low-carbon energy source for commercial transportation fleets.
Why it matters
This project demonstrates a scalable model for reducing agricultural greenhouse gas emissions while providing dairy farmers with a new revenue stream and sustainable waste management solutions.
On a 55-acre dairy farm in rural Minnesota, manure from more than 2,000 milking cows is being turned into ultra-low-carbon vehicle fuel that is sent directly into interstate natural gas pipelines. The renewable natural gas (RNG) facility at Ash Grove Dairy near Lake Benton processes up to 60,000 gallons of cow manure every day. Built by Dynamic Renewables and funded through a $22 million joint venture led by Clean Energy Fuels Corp, the plant converts farm waste into clean biomethane for commercial transportation fleets across North America. At full capacity, the Minnesota facility is expected to produce around 480,000 gasoline-gallon equivalents of negative carbon-intensity fuel every year.
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