Aemetis begins commission $12M biogas-RNG upgrading facility

In California, Aemetis, Inc. has begun commissioning the $12 million biogas-RNG upgrading facility connected to the PG&E gas pipeline interconnection unit located at the Keyes ethanol plant site. The full system commissioning process, including PG&E’s interconnection unit, is expected to be completed in April 2022, enabling the production of utility-grade renewable natural gas for sale to customers via pipeline delivery.

In the Five Year Plan released on February 28, 2022, Aemetis plans to invest more than $300 million to build 66 dairy digesters and more than 36 miles of biogas pipeline to produce more than 1.5 million MMBtu of dairy renewable natural gas each year. The biogas-RNG upgrading facility and the PG&E interconnection unit are designed to convert the dairy biogas into utility-grade, pressurized natural gas for use as a transportation fuel.