Cleanergy Gasbox™ Biogas Generator

Biogas Generator Cleanergy Gasbox

UPDATE JUNE 2017: Due to recent changes on behalf of our licensing partner for this technology, WesTech is not currently selling the Cleanergy GasBox. To discuss other options for your biogas project with WesTech’s expert engineers, please use the Contact Us form to provide basic details about your project.

Cleanergy GasBox™ Biogas Generator

The Cleanergy GasBox™ generates electricity and heat from biogas. The heart of the technology is the Stirling engine, first designed in the early nineteenth century. Now, with the advantage of modern manufacturing capabilities, this energy-producing technology is efficient, viable and proven.

Today, many wastewater treatment plants in the United States utilize methane to run boilers and heat exchangers necessary for anaerobic digestion. Until now, only large plants had the capacity to produce gas in the amount needed to justify the investment of equipment for scrubbing the gas and producing energy.

The GasBox™ requires minimal-to-no gas cleaning which allows for small and mid-size wastewater treatment plants to achieve the power-generating benefits of biogas utilization. The GasBox™ can also run on biogas with a methane concentration as low as 18%, which alleviates the need at larger plants to burn off this biogas with a natural gas supplement.

ROI calculations are available for each unique application, illustrating that not only are the initial equipment costs recouped, but also that ongoing savings to plant operating costs are substantial.

Cleanergy Gas Box


  • Compact modular design
  • Can be supplied as stand-alone units or in pre-plumbed and wired containers
  • Can run on methane levels as low as 18%
  • Reduced emissions due to its flameless combustion
  • Maintenance interval of approximately 6,000 - 8,000 hours
  • 25-year life


  • Wastewater Treatment
  • Confined Animal Feed Operations
  • Food and Beverage Production Facilities
  • Sludge Processing
  • Dairy Plants