Reverion raises $175m to scale reversible biogas power plants
Aerial view of a biogas plant in Grasleben, Germany. Photo by Julia Koblitz on Unsplash
Biogas operators have limited fuel to work with. Manure, agricultural residues and other organic materials must be collected and processed before the resulting gas can generate electricity. Reverion’s proposition is to get considerably more power from that gas by changing the equipment that converts it.
The company, based in Eresing near Munich, announced a $175 million Series B round in a release dated 29 September 2026. Led by Kembara, the investment will finance manufacturing expansion and further development of its reversible fuel cell power plants. Allianz, KfW Capital, Aurum Impact and Carbon Equity are among the new investors.
For a business incorporated in 2022, the funding is substantial. Its technology, however, rests on research that began more than a decade ago.
Reverion’s founders and research origins
The original idea emerged in 2015 while Stephan Herrmann was pursuing his doctorate at the Technical University of Munich’s Chair of Energy Systems. Working with high-temperature fuel cells, he developed a process design intended to make better use of their energy-conversion capabilities.
Felix Fischer joined him in 2017 to test the concept at laboratory scale. Three colleagues subsequently brought complementary expertise: Maximilian Hauck in research and development, Jeremias Weinrich in sourcing and manufacturing, and Luis Poblotzki in automation and control. Their research programme, BioCORE, became the foundation for Reverion.
The five incorporated the company in March 2022 and remain its founding leadership team. Herrmann is chief executive, Fischer chief operating officer, Hauck chief technology officer and Weinrich chief production officer. Poblotzki oversees its digital capabilities, including software and automated plant control.
Their responsibilities now extend from developing the process to manufacturing, installing and supporting complete power plants.
How its reversible fuel cell technology works
Solid oxide fuel cells convert fuel into electricity through an electrochemical reaction, avoiding the combustion engine used in conventional biogas generators. They can also operate in reverse as electrolysers, using electricity to produce gas.
Reverion purchases the cells from established manufacturers. Its invention concerns the system around them: how components are arranged, how gases circulate and how the process is controlled.
The company’s project description on the European Commission’s CORDIS platform identifies two-stage recovery of gases leaving the fuel cells as a central feature. Recovering these streams allows more complete fuel utilisation. The patented architecture combines commercially available components with control algorithms that coordinate the closed-cycle process.
More electricity from the same biogas supply
In September 2025, Reverion reported electrical efficiency of 74.2% at a pre-series installation operating at a biogas plant in Mühlacker, Baden-Württemberg. According to the company, the measurement included carbon capture. Its ambition remains to reach 80% electrical efficiency.
The potential gain is straightforward. On a consistent measurement basis, a generator operating at 40% electrical efficiency turns 100 units of fuel energy into 40 units of electricity. At 74.2%, the same input produces approximately 74 units: around 85% more.
That calculation illustrates the efficiency advantage rather than predicting an installation’s financial return. Conventional combined heat and power engines also deliver useful heat. Manufacturer 2G lists electrical efficiencies of roughly 37–43% for its biogas agenitor range, with much higher overall efficiency when recovered heat is included.
Customers therefore need to compare equipment prices, servicing, component lifetimes and their demand for electricity and heat. More electricity per unit of gas is valuable, but the payback depends on the complete installation.
Reversible operation adds flexibility. When electricity is abundant, Reverion’s equipment can use it to produce hydrogen or methane. Keeping the system hot avoids the lengthy warm-up required from a cold start. Separate gas storage allows operators to size their storage capacity independently of the converter.
This addresses a second problem alongside fuel efficiency: storing energy for use when wind and solar output falls. Its commercial value depends on electricity prices, conversion losses, storage costs and demand for the gas.
Carbon capture and permanent storage
Reverion’s process produces a concentrated CO₂ stream, capturing carbon both from methane converted into electricity and from CO₂ already present in raw biogas.
A November 2025 agreement with Frontier gives this capability a commercial application. Frontier buyers committed $41 million for 96,000 tonnes of carbon removal between 2027 and 2030. The planned process involves liquefying the captured CO₂ and transporting it for permanent geological storage.
Permanent storage is essential to the carbon-removal proposition. Reusing CO₂ in a process that later releases it does not deliver the same outcome. Feedstock sourcing, methane leakage and energy consumption also affect the overall climate balance.
The agreement establishes demand for future removals; it does not mean those contracted tonnes have already been delivered.
Milestones from prototypes to customer plants
Reverion built its first containerised prototype in 2020. A 10-kilowatt unit subsequently accumulated more than 1,500 hours of field operation, followed by a 100-kilowatt pilot in 2023 and development of larger systems.
A $62 million Series A financing package in 2024, including non-dilutive funding, supported the move towards serial production. The company then reported more than $100 million in customer pre-orders, mainly from farmers and industrial businesses.
In August 2026, Reverion expanded its supply partnership with South Korea’s Doosan Fuel Cell. The supplied stacks use technology developed with Britain’s Ceres Power and operate at around 620°C. Reverion says they have been running commercially at several customer sites since 2025.
Its latest announcement reports seven plants in regular customer operation, output per unit increased to 500 kilowatts and more than 200 employees. A project pipeline exceeding $2 billion represents potential revenue rather than completed sales.
Competing with gas engines and other fuel cell suppliers
Reverion competes for customer investment with conventional biogas engines from suppliers such as 2G. Familiar maintenance requirements, servicing arrangements and useful heat output can favour those established systems.
Bloom Energy offers a closer technological comparison. Its solid oxide Energy Servers supply on-site electricity using natural gas, biogas or hydrogen, serving customers including factories and data centres.
Reverion’s competitive proposition combines high electrical efficiency, reversible operation and CO₂ separation. The strength of that package depends on which capabilities customers need and how reliably the equipment delivers them over its operating life.
What the $175m funding will finance
Most of the new capital will support an additional German factory with planned annual manufacturing capacity of 250 megawatts, a tenfold expansion, and potentially up to 800 jobs. Reverion also intends to develop megawatt-class equipment for larger applications.
Data centres are a target market, particularly where grid connections are constrained. Their climate benefits would still depend on fuel sourcing and carbon management; access to a gas connection alone does not establish renewable power.
Seven operating customer plants provide an initial foundation. The next evidence will come from sustained performance, maintenance costs and further deliveries as production expands.
Reverion’s engineers have demonstrated a way to extract more electricity from gas. The factory investment must now turn that achievement into equipment that customers can depend on, installation after installation.
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