Atmen automates and derisks certification workflows across renewable fuels, from real-time supply chain data to auditable product claims.
Bring clarity and control to your certification journey, whether you are working in green hydrogen, e-methane, ammonia, biomethane, HVO or SAF.
It’s a challenge for business developers selling a green premium, engineers calibrating supply chains, procurement teams optimising the intake of the right feedstocks, and supply chain managers integrating regulatory constraints into their daily workflows.
With 30+ industrial supply chains already onboarded, Atmen combines frontier technology with deep regulatory expertise to help you stay ahead in a fast-moving certification landscape.



Think of Atmen as the technology layer on top of operational supply chains, enabling continuous compliance and streamlining the official sustainability certification workflows. At scale and across borders.

You can manage your entire audit preparation directly in Atmen's platform. This feature helps you collect documents, reconcile data, and generate audit-ready reports, with checklists and reminders based on your certification scheme. Invite external auditors, share granular data, and automatically generate key evidence like mass balances and sustainability proofs.
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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.
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.

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.”

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.”

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.


Energiepark Bad Lauchstädt has reached a significant milestone in the development of its green hydrogen value chain, with hydrogen production at the site achieving RFNBO certification.
The electrolyzer developed by Uniper Hydrogen and VNG Handel & Vertrieb through their joint venture Elektrolyse Mitteldeutschland GmbH, the project brings together the production, transport, marketing and use of renewable hydrogen, testing the entire value chain at industrial scale.
The certification, issued by GUTcert and following an initial audit under the ISCC scheme, confirms the hydrogen produced at Energiepark Bad Lauchstädt meets the European requirements as RFNBO-compliant.
Atmen has supported Uniper Hydrogen and VNG Handel & Vertrieb throughout their preparation for RFNBO certification, providing a shared compliance platform.
Energiepark Bad Lauchstädt is one of Germany’s Real-World Laboratories for the Energy Transition, designed to test the green hydrogen value chain under industrial conditions. At the site, a large-scale electrolyzer of up to 30 MW uses renewable electricity from a nearby wind farm to produce green hydrogen.

But production is only one part of the project. The hydrogen will then be transported through a converted gas pipeline into the hydrogen network serving Central Germany’s chemical industry. By connecting production and, in a second phase, storage, transport, and use within one project, the developers, a consortium of Terrawatt Planungsgesellschaft, Uniper, VNG Handel & Vertrieb, VNG Gasspeicher, ONTRAS, DBI-Gastechnologisches Institut, and VNG AG, are testing how these technologies can work together at industrial scale and progress towards market maturity.
Producing hydrogen with renewable electricity is just the starting point.
Under the EU framework, renewable electricity sourcing is assessed against specific conditions, including rules around additionality, temporal correlation and geographical correlation, depending on how the electricity is supplied.
At Bad Lauchstädt, those requirements meet a particularly distinctive electricity and metering setup. The project describes the direct coupling of the nearby wind farm with the large-scale electrolyzer as a world first: both components are directly electrically connected via a privately operated site grid.
“What made this project particularly interesting was translating such a specific physical metering setup into a structure that ensured consistent calibration across the entire site, internal records and Automate. It was a highly collaborative process: the teams really engaged with the platform, worked through the setup in detail and helped surface questions early along the way.”
— Nadeen Gboor, Solutions Engineer at Atmen

Working with Atmen from the preparation stage, the teams used Atmen Automate as their shared compliance platform to structure and manage certification data and evidence, surfacing potential gaps early and reducing friction during audit and reporting.
Now, certification brings that early preparation to a tangible outcome. We are proud to collaborate with Uniper Hydrogen and VNG Handel & Vertrieb on this journey and contribute to the continued development of this flagship green hydrogen project.