Multi-Feedstock Anaerobic Digestion Facility

The PurposeEnergy anaerobic digestion facility in South Burlington, Vermont is a proven industrial organic waste-to-energy system supporting multiple food industry partners.

• Commissioned in 2009, this facility features a ~450,000-gallon purpose-built bioreactor continually treating high-strength organic waste streams from Zero Gravity Brewery (formerly Magic Hat) and other regional producers.
• At full operating capacity, the system produces approximately 300 kW of renewable electricity that is exported to the Vermont grid — enough to power roughly 250 homes and significantly offset the region’s carbon footprint.
• The bioreactor’s continuous operation since commissioning underscores its long-term performance and reliability in a demanding industrial environment.
• In addition to renewable energy generation, the facility enhances environmental stewardship by reducing organic waste sent to conventional treatment, lowering greenhouse gas emissions, and contributing to a more sustainable local food and beverage industry.

Zero Gravity Craft Brewery serves as the anchor tenant for PurposeEnergy’s South Burlington, Vermont project, grounding the facility in the operational needs of a growing craft brewer with rigorous production and sustainability standards. As Zero Gravity scales, it requires reliable, proven solutions that operate continuously, integrate seamlessly into brewery operations, and deliver consistent performance over the long term.