Aemetis Begins Operation of Two New Biogas Digesters

Aemetis expands RNG operations, reporting $22.8 million in tax credits and rising regulatory revenues.

What the company is saying

Aemetis, Inc. (NASDAQ:AMTX) is highlighting the operational expansion of its renewable natural gas (RNG) business, announcing the completion and startup of two additional dairy biogas digesters, bringing its total to 14 digesters. The company frames this as continued progress in building out a biogas network, emphasizing the use of waste from California dairies to generate valuable biofuel. Eric McAfee, Chairman and CEO, underscores the company's intent to increase revenue in the Aemetis Biogas segment and to supply RNG at less than $2 per diesel gallon equivalent, contrasting this with California diesel prices above $7 per gallon. The announcement stresses regulatory momentum, citing seven approved Low Carbon Fuel Standard (LCFS) pathways and six more nearing approval, with an average negative 328 carbon intensity. Aemetis points to four revenue streams for dairy RNG in California: pipeline sales, Section 45Z tax credits, federal D3 RINs, and LCFS credits. The company claims $22.8 million in Section 45Z tax credits as of August 2026 and highlights the rising value of LCFS credits, now at $90 per credit. The tone is confident, focusing on near-term operational milestones and the financial upside from regulatory programs.

What the data suggests

Aemetis now operates 14 dairy digesters, sourcing manure from 17 dairies, with signed agreements covering 50 dairies for future expansion. The network is expected to produce about 600,000 MMBtu of RNG annually, though actual realized output is not disclosed. RNG is transported via a 36-mile pipeline to a central facility in Keyes, California, with plans to begin truck fleet deliveries from a new fueling station in November 2026. The company has generated $22.8 million in Section 45Z tax credits as of August 2026, equating to $62 of revenue per MMBtu from tax credits alone. Each MMBtu of RNG yields 11.7 D3 RINs, currently priced at $2.05 per RIN, providing another revenue stream. LCFS credit prices have more than doubled from $42 in July 2025 to $90 in October 2026, supporting the company's revenue outlook. While the company claims it will sell RNG for less than $2 per diesel gallon equivalent, no executed sales contracts or realized sales figures are provided. The financial disclosures are strong for regulatory credits and infrastructure, but lack direct evidence of realized RNG sales or profitability.

Analysis

The announcement is generally positive and provides concrete evidence of operational progress, such as the commissioning of two new digesters (now 14 in operation), signed agreements with 50 dairies, and $22.8 million in Section 45Z tax credits generated. However, several key claims remain forward-looking, including the expected annual RNG production (600,000 MMBtu), the timeline for the first RNG fueling station and deliveries (scheduled for November 2026), and the plan to sell RNG at less than $2 per diesel gallon equivalent. While the company discloses meaningful revenue from tax credits, it does not provide profitability metrics (net income, EBITDA, operating profit), limiting the ability to assess the sustainability of growth. The capital intensity is high, with ongoing infrastructure buildout and future expansion plans, but immediate earnings impact from these investments is not demonstrated. The tone is optimistic, but some language inflates the signal by projecting future benefits as imminent or certain when they are not yet realized.

Risk flags

• ●Revenue growth is heavily dependent on regulatory credit markets, including Section 45Z tax credits, D3 RINs, and LCFS credits. Any policy changes or price volatility in these programs could materially impact earnings, as evidenced by the company's emphasis on rising LCFS prices and tax credit revenue.
• ●The company's forward-looking claims on RNG production (600,000 MMBtu per year) and sales at less than $2 per diesel gallon equivalent are not backed by disclosed realized output or executed sales contracts, introducing execution risk if operational or market conditions fall short.
• ●Expansion plans rely on timely installation of additional digesters and the successful commissioning of fueling infrastructure. Delays in construction, permitting, or supply chain issues could postpone revenue realization, particularly for the next 12 digester installations and the new fueling station.
• ●Aemetis is undertaking capital-intensive infrastructure buildout, including digesters, pipelines, and fueling stations. Sustained capital outlays without matching realized cash flows could pressure liquidity if regulatory revenues or RNG sales underperform.

Bottom line

Aemetis is scaling its California RNG platform, now running 14 digesters and generating $22.8 million in Section 45Z tax credits, with regulatory credit prices trending upward. The company is positioned to benefit from four distinct revenue streams, but actual RNG sales and profitability remain unproven, as no realized sales contracts or output volumes are disclosed. Near-term catalysts include the launch of the Keyes fueling station and further digester installations, but execution risk remains around operational ramp-up and market uptake. The company's financial outlook is closely tied to regulatory credit markets, which have been favorable but are inherently volatile. Investors should focus on whether Aemetis can convert projected RNG production and aspirational pricing into sustained, realized cash flow. The key takeaway is that while regulatory-driven revenue is rising, the transition from infrastructure buildout to proven commercial sales is the critical next step.

Announcement summary

(NASDAQ:AMTX) Aemetis, Inc. announced that its Aemetis Biogas subsidiary has completed construction and commenced operation of two additional dairy biogas digesters, bringing the total to 14 dairy digesters in operation. These digesters receive manure feedstock from 17 dairy facilities and are expected to produce about 600,000 MMBtu per year of renewable natural gas (RNG). The biogas is transported via 36 miles of Aemetis pipeline to a central biogas-to-RNG production facility in Keyes, California, which delivers RNG into the PG&E utility gas pipeline. Aemetis has signed agreements with a total of 50 dairies in the area to install digesters. The new digesters utilize two of the fourteen biogas cleanup and compression systems purchased from NPL Construction, a subsidiary of Centuri Holdings, Inc. (NYSE:CTRI). The remaining units in inventory are expected to significantly reduce construction time for the next 12 digester installations. Aemetis expects to complete construction of its first RNG fueling station in Keyes, California in the next few weeks, with deliveries to truck fleets scheduled to begin in November 2026. The company plans to sell RNG to truck fleets for less than $2 per diesel gallon equivalent in California, where diesel prices exceed $7 per gallon. Seven Low Carbon Fuel Standard (LCFS) pathways have been approved, with six more biogas pathways nearing approval, collectively averaging a negative 328 carbon intensity. Aemetis Biogas has generated $22.8 million of Section 45Z tax credits as of the end of August 2026, resulting in $62 of revenue per MMBtu of dairy RNG from the sale of the tax credits. Each MMBtu of dairy RNG produces 11.7 D3 RINs, which are currently selling at $2.05 per RIN. California LCFS credit prices have increased from $42 per credit in July 2025 to approximately $90 in October 2026. Aemetis owns and operates a 65 million gallon per year ethanol production facility in California’s Central Valley near Modesto, supplying about 80 dairies with animal feed. The company also owns and operates an 80 million gallon per year production facility on the East Coast of India producing biodiesel and refined glycerin. Aemetis is developing a sustainable aviation fuel plant and a CO2 sequestration project in California.

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