• Germany advanced RED III transposition last week, introducing explicit quotas for RFNBO (Renewable Fuels of Non-Biological Origin) for the first time
• Siemens, Atmen, and TURN2X have built the first end-to-end model for RED III-ready renewable gas production at TURN2X's commercial e-methane plant in Miajadas, Spain
• The Miajadas plant is fully operational, with 100 percent of its output sold under long-term offtake agreements, proof that green gas can be produced, certified, and delivered at a commercial scale today.

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(Munich, March 10, 2026)  Last week, Germany took a significant step toward closing remaining gaps in renewable fuel regulation. The Bundestag held the first reading of the Second Law on the Development of the Greenhouse Gas Reduction Quota, which will transpose RED III into national law and, for the first time, introduce explicit quotas for green hydrogen and e-fuels in the transport sector.

While most of Europe works toward RED III compliance, industrial offtakers are already demanding certified molecules as regulatory deadlines near. Siemens, Atmen, and TURN2X, all based in Munich, have developed the first end-to-end model for RED III-ready renewable gas production, from automated plant operations to certified product delivery. The plant of the future is already running at TURN2X's first commercial e-methane plant in Miajadas, Spain.

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TURN2X produces climate-neutral e-methane by combining green hydrogen with biogenic CO₂. The company plans to scale this model across Europe, aiming to cover 10 percent of Germany’s gas demand by 2031. Miajadas demonstrates the commercial viability of this pathway, with 100 percent of its renewable gas output sold under long-term off-take agreements. 

Intelligent operation and an ecosystem approach by Siemens

Siemens provides the industrial backbone for this model, including advanced automation systems, digital twin technology for remote plant operation, and standardised, secure deployment of future facilities.

Siemens adopts an ecosystem approach, collaborating with leading partners such as Atmen rather than developing every component in-house. “This is exactly how we at Siemens want to go forward in renewable energies,” says Philipp Glaser, Siemens Digital Industries. “We want to partner with the best solutions so our customers get innovation, technology, and speed of implementation.”

The data infrastructure layer provided by Atmen

Atmen, a regulatory technology company, provides the certification data layer. At Miajadas, this enabled the site to reach full RFNBO certification, making automated compliance part of day-to-day operations.

“Certification isn’t a nice-to-have; it’s market access and business case realization,” says Flore de Durfort, CEO of Atmen. “Our platform turns operational data into verifiable, auditable proof that keeps production continuously certification-ready so that renewable fuel producers can scale with confidence.”

The plant of the future, run by TURN2X

For TURN2X, combining Siemens’ industrial technology with Atmen’s compliance layer creates a blueprint for rapid, reliable expansion.

“Scaling across Europe brings two challenges: maintaining operational excellence and meeting increasingly complex certification requirements for renewable fuels,” says Dr.  Dominik Schollenberger, CTO of TURN2X. “The Miajadas plant shows that when intelligent operations and built-in compliance come together, e-methane can scale with the reliability our customers expect.”

The three companies share a single goal: scaling green energy production with intelligence, trust, and speed.

The plant of the future isn’t a vision. It’s running today in Miajadas.

About TURN2X

TURN2X develops and operates projects using its proprietary technology to produce e-methane by combining biogenic CO₂ with green hydrogen. The company focuses on scalable, infrastructure-ready renewable gas solutions that support industrial decarbonization and energy security.

About Siemens 

Siemens AG (Berlin and Munich) is a leading technology company focused on industry, infrastructure, mobility, and healthcare. The company’s purpose is to create technology that transforms everyday life for everyone. By combining the real and the digital worlds, Siemens empowers customers to accelerate their digital and sustainability transformations, making factories more efficient, cities more livable, and transportation more sustainable. A leader in industrial AI, Siemens leverages its deep domain know-how to apply AI – including generative AI – to real-world applications, making AI accessible and impactful for customers across diverse industries. Siemens also owns a majority stake in the publicly listed company Siemens Healthineers, a leading global medical technology provider pioneering breakthroughs in healthcare. For everyone. Everywhere. Sustainably. In fiscal 2024, which ended on September 30, 2024, the Siemens Group generated revenue of €75.9 billion and net income of €9.0 billion. As of September 30, 2024, the company employed around 312,000 people worldwide on the basis of continuing operations. Further information is available on the Internet at www.siemens.com.

About Atmen

Atmen (atmen.co) is a regulatory technology company providing the data infrastructure that powers trusted certification of industrial products. Atmen focuses on automating certification and enabling large-scale, verifiable supply chain transparency across energy-intensive industries. 

Founded in January 2023 by energy and regulation experts Flore de Durfort, Quentin Cangelosi, and Erika Degoute, Atmen has raised €6.3M to date to build technology that certifies industrial goods, starting with renewable gases. 

Headquartered in Munich, the company's platform is deployed across industrial sites in 9 countries, automating certification workflows and enabling verifiable proof of product attributes throughout the supply chain.

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RFNBO certification can sound abstract until you look at where the hydrogen goes.

Qair, an independent renewable energy company, is building a renewable hydrogen ecosystem in Occitanie, southern France, with refueling stations in Béziers and Narbonne serving intensive mobility along some of southern France’s key transport routes.

At a hydrogen refueling station, the abstract hydrogen journey becomes tangible: hydrogen arrives, is stored and dispensed and eventually leaves in the tanks of a wide range of vehicles.

But behind that physical movement sits another, less visible flow. The data and evidence supporting the hydrogen’s RFNBO claim need to keep pace.

That connection between physical flows and certification data sits at the heart of Dh’Occ’s latest milestone: achieving RFNBO certification under the CertifHy EU RFNBO Voluntary Scheme, following an initial audit conducted by TÜV Rheinland.

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Following the RFNBO claim downstream

Béziers and Narbonne hydrogen refuelling stations, are two key infrastructures of the Corridor H2 Occitanie. Strategically located along major road transport routes, they contribute to the development of a hydrogen mobility corridor connecting the Iberian Peninsula with Northern Europe.

Together with Hyd’Occ, Qair’s renewable hydrogen production plant at Port-La-Nouvelle, the stations form part of an integrated value chain connecting the production, transport and distribution of renewable hydrogen.

That continuity is managed through a mass balance system. Under CertifHy, operators account for certified product flows by linking inputs, outputs and inventory with their corresponding sustainability and GHG information.

For Dh’Occ, this means accounting for the hydrogen received, stored and dispensed at the certified stations while preserving the information behind its RFNBO claim.

Put simply: as hydrogen leaves through the pump, the evidence cannot be left behind.

The certification infrastructure behind Dh’Occ

Qair and Atmen worked closely throughout Dh’Occ’s preparation for RFNBO certification.

Through Atmen Automate, Atmen provided the certification infrastructure behind the process, translating Dh’Occ’s supply chain setup into the data, checks and calculations that demonstrate RFNBO compliance under the CertifHy scheme. These workflows were backed by the documented evidence and traceability needed for audit readiness.

But the goal was never simply to assemble documentation for an audit. The same setup is designed to keep supporting traceability as operations continue and hydrogen volumes and deliveries grow.

“Dh’Occ is a great example of RFNBO certification becoming tangible through mobility. As hydrogen moves through the value chain, the underlying data and traceability need to keep pace. We’re glad Atmen can provide the certification infrastructure to support that.” — Nadeen Gboor, Solutions Engineer at Atmen

We are proud to have supported Qair in reaching this milestone and look forward to the project’s continued success. You’ll hear more about the Atmen x Qair collaboration in the following months!