This renewable natural gas (RNG) project development and operations company wanted to construct a complex multi-farm RNG operation and needed a turnkey team to deliver a system to transport digester biogas from three farms to a central biogas upgrading facility, where the biogas would be cleaned and prepared for injection into a utility gas pipeline. We designed, installed, constructed, and programmed the biogas delivery system from the three remote farms to the central RNG facility.
The remote sites included biogas compression, drying skids, and an eight-mile biogas pipeline. We performed balance of plant design and construction for the central biogas upgrading facility, including utility installation, equipment layout, interconnected piping, and controls integration. Each farm’s digester produces between 400 and 500 SCFM of biogas, totaling 1,500 SCFM between all three farms. Biogas is treated at the central upgrading facility, which includes a two-stage membrane treatment system. After treatment, 885 SCFM of RNG is injected into the natural gas pipeline to achieve renewable identification numbers (RINs) and low-carbon (LCFS) revenue for the farms.
