Neogenyx Fuels delivers ISCC-certified renewable natural gas to Europe

Neogenyx Fuels on June 3 delivered renewable natural gas from one of its facilities into European compliance markets, marking a new export channel for gas certified under the International Sustainability and Carbon Certification scheme. The transaction depended on certifications that became effective in January 2026, and the certified volumes were tracked under an ISCC mass balance chain-of-custody framework to meet European Union sustainability and traceability requirements.

The company said the gas came from a plant at one of Republic Services’ landfills, underscoring how landfill RNG is moving beyond domestic transportation and utility outlets into markets that pay for documented carbon intensity and chain-of-custody controls. Neogenyx Fuels said its ISCC-certified RNG projects can produce more than 4.2 million MMBtu a year, giving the joint venture a larger pool of certified supply to serve both U.S. and international buyers. The company also said it plans to certify more RNG facilities as the market develops.

Republic Services’ Tim Oudman, senior vice president of Sustainability Innovation, said the partnership is expanding renewable natural gas facilities and creating an opportunity to export low-carbon fuels to customers around the globe. U.S. Energy, described as a U.S. venture company and ISCC-certified trader, supported the delivery into the ISCC market. For producers, that trading and certification layer is becoming as important as raw biogas production, especially when the destination market is Europe rather than a domestic pipeline or transportation offtake.

The move also follows a separate May 19 contract in which Anaergia said it secured a C$58 million deal with Neogenyx Fuels for turnkey manure handling, processing and digestion systems at a large-scale agricultural site in the United States. Anaergia said the systems are designed to produce more than 4,400 standard cubic feet per minute of biogas that Neogenyx Fuels will convert into pipeline-quality RNG over the next two years.

Neogenyx Fuels is a joint venture between Ameresco, Inc. and HA Sustainable Infrastructure Capital, Inc., and it describes its business as developing, owning and operating advanced energy infrastructure that converts raw biogas from waste into usable forms of energy, fuel and biogenic gases. The European delivery gives that platform a new market-access proof point, and it suggests export demand may be emerging as a stronger strategic pull for certified U.S. renewable gas.