Aemetis Biogas completes 7 miles of underground pipeline to support RNG

Jan. 28, 2022
The pipeline will connect five new dairy digesters to its RNG facility at the Aemetis Keyes biofuels plant

Aemetis Biogas, a subsidiary of Aemetis, Inc., has completed the construction of 7 miles of underground pipeline connecting five new dairy digesters to its centralized renewable natural gas upgrading facility at the Aemetis Keyes biofuels plant.

Aemetis has now completed the installation of more than 11 miles of pipeline and is expected to complete the 36-mile biogas pipeline network in 2022. Another 25 miles of pipeline spanning Stanislaus and Merced Counties is under construction as part of Phases 2 and 3 of the project.

“With five dairy biogas digesters under construction and scheduled to begin biogas production by mid-year, the completion of this phase of pipeline on time and under budget is another significant milestone for the Aemetis Biogas dairy RNG project,” said Andy Foster, President of Aemetis Biogas.  “By year’s end, we expect to have built 15 new dairy digesters and completed the 36-mile biogas pipeline network, providing immediate benefits to the region’s air quality and the state’s low carbon transportation fuel supply.”

The biogas pipeline project, 52 dairy digesters the central biogas upgrading and the PG&E gas pipeline is expected to bring $300 million of new capital investment to California’s Central Valley. Aemetis intends to increase RNG production to more than 1.4 million MMBtu’s per year as transportation fuel that will be sourced from 52 dairy digesters in the San Joaquin Valley.

The project is expected to reduce GHG emissions by approximately 5.2 million metric tonnes of CO2 each year.

The Aemetis Biogas dairy RNG project, upgrades to the Aemetis Keyes biofuels plant and the Renewable Jet/Diesel project have received $57 million in grant funding and support from the California Air Resources Board, the US Department of Agriculture, the US Forest Service, the California Energy Commission, the California Department of Food and Agriculture, CAEATFA, and Pacific Gas and Electric’s energy efficiency program.