Cow manure converted into biogas for milk hauling fleet is equivalent to 10,000 gallons per day of diesel fuel.
Anaergia Inc., Burlington, Ontario, has announced that its biogas upgrading facility at Fair Oaks Farms in Indiana is now operational. Anaergia designed, built and operates the facility that converts biogas from cow manure into the equivalent of nearly 10,000 gallons per day of diesel fuel for one of the largest milk hauling fleet in the United States using renewable natural gas.
Manure collected from 11,000 dairy cows is anaerobically digested to produce a biogas composed of roughly 60 percent methane. Anaergia cleans, compresses and upgrades the biogas to more than 98 percent methane under a 15-year operations contract that could be extended in the future. The product gas, called biomethane, is odorized to form renewable natural gas (RNG) and then further compressed up to 4,000 psig (pounds per square inch gage) into compressed natural gas (CNG) for vehicle fueling.
A fueling station supplies the renewable natural gas to fuel a fleet of 42 milk trucks operated by Fair Oaks Farms and AMP Americas. The renewable fuel avoids the consumption of diesel fuel for their daily milk deliveries that run more than 20,000 miles per day. Excess renewable natural gas generated that is not used for onsite fleet fueling will be injected into the natural gas grid to offset fossil-fuel-based consumption by other AMP Americas CNG fueling stations. The project is expected to save millions in fuel costs each year and reduce greenhouse gas emissions of the fleet by roughly 40,000 tons per year.
“We believe we are part of the answer by using renewable energy to reduce dependence on imported oil. We’re employing proven technology to solve one of the United States’ biggest economic problems. In addition, we’re combining time-tested fleet management practices to achieve the highest possible productivity,” says Mark Stoermann, project manager for Fair Oaks Dairy Farm.
“The biogas upgrading project at Fair Oaks Farms demonstrates how forward thinking businesses can use proven biogas technologies to advance environmental sustainability and reduce operating costs,” says Steve Watzeck, CEO of Anaergia Inc. “We are proud to have been selected to build and operate this outstanding example of environmental stewardship for Fair Oaks Farms.”