Farm Powered® Anaerobic Digester Project
Crescent and Shaw Farms are taking huge steps to increase farm sustainability and enhance relationships with their communities. The Vanguard Renewables Farm Powered Anaerobic Digester project at Crescent Farm in Haverhill, Mass. is a cooperative farm venture between Crescent Farm in Haverhill, where the digester is hosted and Shaw Farm in Dracut, Mass.
Approximately 10 tons per day (TPD) of manure is combined with 100 TPD of pre-consumer organics from food and beverage processing, food retailers, municipalities, and businesses in the Haverhill anaerobic digester. Methanogenic bacteria break down the manure and organics to produce biogas which powers a 1 MW engine to produce renewable electricity. The digestate material byproduct of the process is a highly potent liquid fertilizer used by the farm to reduce synthetic fertilizer use and increase crop yields.
The engine produces more than 7,700 MWh per year of renewable energy, which is provided via net metering credits to the City of Haverhill schools and public facilities.