he sustainable energy NGO Energy Vision released its 2021 annual assessment of the US renewable natural gas (RNG) industry, conducted for the U.S. Department of Energy’s Argonne National Laboratory. It documents rapid growth in RNG production nationwide. The number of RNG production facilities grew 33.5% (from 313 in December 2020 to 418 by the close of 2021), including 230 RNG facilities now operating (up 46% from 2020), 108 under construction (up 42%), and at least 80 new projects in planning. This growth has increased production capacity 24% since 2020. The US can now produce enough RNG fuel to displace nearly 574 million gallons of diesel annually. That can power 63,800 refuse trucks (35% of the US total). Robust capacity growth should continue in the years ahead. More >>