Biogas

• Energy Recovery Associates  - Recovers and purifies methane from landfills, digesters, and coal seams using both amine absorption, and membrane separation systems.
• Energy Xchange  - Demonstrates the responsible use of landfill gas as an energy source for small enterprise in craft and horticulture, and to meet local energy needs.
• Gas Separation Technology LLC  - Offers processes for separating carbon dioxide, nitrogen or air from methane making pipeline quality gas from low quality gas sources.
• Landfill Energy Systems  - Offering landfill gas power systems, operations and maintenance, interconnection and electrical system design.
• Unison Solutions, Inc.  - An energy services company specializing in distributed generation installing and servicing biogas fueled Capstone MicroTurbines.