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Aemetis receives approval for biogas pipeline extension for dairy RNG project

In the United States (US), renewable natural gas RNG and renewable fuels company Aemetis Inc. has announced that by a unanimous vote the Stanislaus County Board of Supervisors accepted and approved the Aemetis Biogas Initial Study/Mitigated Negative Declaration for construction of a 32-mile (≈ 51.5 km) extension to the existing Aemetis Biogas four-mile (≈ 6.45 km) private pipeline that was completed in 2020.

Aemetis Inc. has announced that the Stanislaus County Board of Supervisors has accepted and approved the Aemetis Biogas Initial Study/Mitigated Negative Declaration for construction of a 32-mile (≈ 51.5 km) extension to the existing Aemetis Biogas four-mile (≈ 6.45 km) private pipeline that was completed in 2020 (image courtesy Aemetis).

The pipeline is designed to carry biogas from dairies as part of the Aemetis Central Dairy Digester Project, which is planned to span across the Stanislaus and Merced counties in Central California.  The approval is necessary to meet the permitting requirements of the California Environmental Quality Act (CEQA) prior to pipeline construction and confirms that mitigation measures in the proposed project will avoid or mitigate any impacts on the environment.

Receiving CEQA approval for our pipeline project is a significant milestone for the Aemetis Biogas renewable natural gas (RNG) project and puts us on a solid path to begin construction of the 32-mile pipeline extension that will convey biogas from approximately 30 dairy digesters to our centralized gas cleanup unit co-located at the Aemetis Advanced Fuels Keyes ethanol plant. After the dairy biogas is upgraded to RNG by the gas cleanup unit at the Keyes plant, we expect to have multiple alternatives to generate revenues from Low Carbon Fuel Standard (LCFS) and Renewable Fuel Standard (RFS) credits, said Eric McAfee, Chairman, and CEO of Aemetis, Inc.

The Aemetis Biogas Central Dairy Digester Project is a collection of dairy lagoon anaerobic digesters that are being built, owned, and operated by Aemetis Biogas LLC, utilizing waste animal manure to generate renewable methane gas to produce RNG.

About 25 percent of the methane emissions in California are emitted from dairy waste lagoons, and California Senate Bill 1383 provides grant funding and mandates for the capture of methane by dairies.

Phase one operational

In the fourth quarter of 2020, Aemetis Biogas began operating the first two digesters and the initial four-mile pipeline in the RNG project.

The company plans to begin construction of the next five dairy digesters and the additional 32 miles of biogas pipeline in the second quarter of 2021, with five more dairy digesters set to begin construction in the third quarter of 2021 and five digesters beginning in Q1 2022, for a planned total of seventeen dairy digesters and a 36-mile pipeline in operation by Q2 2022.

We plan on using the RNG to fuel trucks by dispensing RNG at the renewable compressed natural gas (R-CNG) fueling station we are building at the Keyes plant, inject the RNG into the PG&E utility pipeline using an interconnection unit that is scheduled for completion in Q3 2021, or utilize the RNG as process energy to displace carbon-intensive petroleum natural gas at the Keyes biorefinery. We believe this flexible go-to-market approach ensures our ability to capture the maximum value for LCFS and RFS credits and gives us a unique advantage as a dairy RNG producer in California, ended Erik McAfee.

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