John Preston, a mechanical engineer with Tetra Tech’s renewable biogas team, discusses how to optimize landfill gas (LFG) collection and infrastructure for improved performance and reliability. How is the shift to renewable natural gas (RNG) changing LFG projects? Current natural gas market prices have made it more attractive to sell RNG on the open market […] The post John Preston Discusses Optimizing Landfill Gas-to-RNG Systems appeared first on Tetra Tech .