Germany's Reverion Raises $175 Million to Mass-Produce Reversible Power Plants for a Grid Under Strain

Reverion, a German climate technology company that builds container-sized power plants able to run in two directions, has raised $175 million in a Series B round to move from early serial production to mass manufacturing.

The round, announced on 29 September 2026, was led by Kembara, a European fund focused on deep technology and climate. Allianz, KfW Capital, Aurum Impact and Carbon Equity joined alongside existing investors.

The company plans to use the capital to build a new European factory that could create about 800 jobs and increase production approximately tenfold. The raise comes as rising electricity demand, including from AI data centres, has made flexible and efficient power generation more valuable.

Power plants that work both ways

Reverion emerged from research at the Technical University of Munich. Its systems are based on high-temperature solid-oxide fuel cells, a technology that converts the chemical energy in fuels such as biogas, natural gas or hydrogen directly into electricity through an electrochemical reaction rather than combustion.

The distinguishing feature of Reverion's technology is reversibility. When electricity is expensive or scarce, the plants generate power from gas. When renewable electricity is abundant and cheap, for example on sunny or windy days, the same units can run in reverse, using electricity to produce hydrogen or synthetic gas that can be stored and used later.

That flexibility addresses one of the central challenges of the energy transition. Solar and wind power are variable, producing more electricity at some times than the grid can absorb and too little at others. Storage technologies, including batteries, pumped hydro and hydrogen, are needed to balance supply and demand. A single system that can both generate power and store energy in the form of gas could help grids manage that variability.

Efficiency as the selling point

Reverion says its plants have achieved 74.2% electrical efficiency in field operations. By comparison, conventional gas engines used at many biogas plants typically convert around 40% of the fuel's energy into electricity. Higher efficiency means more power from the same amount of fuel, lower emissions per unit of electricity and better economics for operators.

The company's first market has been biogas plants, of which there are thousands across Germany and Europe. Many use gas engines to generate electricity from agricultural waste and other organic material. Replacing those engines with more efficient fuel-cell systems can increase revenue for plant operators and, with the reversible function, allow them to participate in energy storage and hydrogen production.

From pilot to production

Reverion raised a $62 million Series A in 2024 to begin serial production, and says demand for its systems has since outgrown its existing capacity. The Series B is aimed at crossing one of the most difficult thresholds in climate technology: the move from successful demonstration units to high-volume manufacturing.

Many promising clean energy technologies have stumbled at this stage. Scaling production requires significant capital, supply chains for specialised materials, quality control across thousands of units and a workforce with the right skills. Costs must come down as volumes rise, and customers must be confident that the systems will perform reliably for years. Investors in hardware companies increasingly focus on whether a company can hit specific manufacturing milestones, such as yield, cost per unit and output, rather than on technological promise alone.

The composition of Reverion's investor group reflects that focus. Allianz, one of the world's largest insurers and asset managers, brings long-term capital and experience in infrastructure. KfW Capital, the venture arm of Germany's state development bank, signals public-sector support for strategic clean technologies. Impact investors such as Aurum Impact and Carbon Equity add climate-focused capital.

The data centre angle

Although Reverion's core market remains broader than AI, the surge in electricity demand from data centres has created a second demand vector. Data centres need reliable, round-the-clock power, and operators are exploring on-site generation to supplement grid supply, particularly where grid connections are delayed.

Fuel cells are attractive for this role because they are quiet, efficient and can run on a range of fuels, including hydrogen in future. Samsung's $1 billion investment in AI infrastructure company Helix, announced on the same day as Reverion's round, underscored how central power has become to the AI build-out.
## The economics of flexibility

Reverion's business case depends on the growing value of flexibility in electricity markets. As the share of solar and wind power rises, prices swing more sharply between periods of surplus and scarcity. Assets that can respond to those swings, generating when prices are high and consuming or storing energy when prices are low, can earn revenue from both sides of the market.

In Germany, where renewables supply a large share of electricity, periods of negative prices during sunny and windy hours have become more frequent. At the same time, evening peaks and still, cloudy winter days create demand for dispatchable power. A reversible plant that can switch between producing electricity and producing gas is well placed to capture that spread, provided its costs are low enough.

That is why manufacturing scale matters so much. Only by reducing the cost per unit can Reverion make its systems competitive with alternatives such as gas engines, batteries and standalone electrolysers across a wide range of customers.

Europe's industrial ambition

Reverion's plan to build a factory in Europe carries political as well as commercial significance. European policymakers have expressed concern that the region risks losing clean technology manufacturing to China and the United States, which have offered large subsidies and industrial policies to attract factories. Europe has responded with measures to support domestic production of strategic technologies, including hydrogen and energy storage.

A tenfold increase in production, with around 800 new jobs, would make Reverion a notable example of European clean technology manufacturing at scale. It would also test whether European companies can compete on cost and speed in a sector where Chinese manufacturers have come to dominate many supply chains, from solar panels to batteries.

For the global energy transition, including in markets such as India that are expanding biogas and green hydrogen programmes, technologies that can efficiently convert waste into power and store surplus renewable energy are highly relevant. If Reverion succeeds in mass production and brings down costs, its reversible power plants could find applications far beyond Germany's biogas sector. The next two to three years, as the new factory ramps up, will determine whether the company can turn impressive efficiency figures into an industrial success story.