The cheapest clean hydrogen in the world might not come from a solar farm or a wind turbine. It might come from a rock. Specifically, from a rock in Quebec that Vema Hydrogen is currently drilling into, trying to prove that a subsurface chemical reaction can be engineered to produce gas for less than a dollar per kilogram [H2-View]. It is a quiet, patient, and deeply technical bet on a new color in the hydrogen rainbow: orange.
Founded in 2024, the Paris-based company has just raised a $13 million seed round co-led by Extantia and Propeller, with participation from Zero Carbon Capital, Pace Ventures, Marble, and the Grantham Foundation [Mintz, April 2025]. The money is for turning a lab-proven geochemical process into a commercial pilot. The ambition is not to compete with green hydrogen on a spreadsheet, but to bypass it entirely on unit economics, targeting the hardest-to-decarbonize sectors like maritime fuels where energy density and cost are non-negotiable [Marble.studio].
The wedge is a catalyst, not a turbine
Vema’s technology, called Engineered Mineral Hydrogen (EMH), aims to accelerate a natural process known as serpentinization. In simple terms, when certain minerals react with water deep underground, they can produce hydrogen. The company’s patented approach involves injecting catalysts and controlling temperature and flow rates to stimulate and manage this reaction in a closed-loop well system [Vema.earth]. The claimed output is high-purity hydrogen with an energy input of less than 3 kilowatt-hours per kilogram, leading to a projected levelized cost of hydrogen (LCOH) below $1/kg [H2-View].
For context, the U.S. Department of Energy’s "Hydrogen Shot" goal is $1/kg for clean hydrogen by 2031. Green hydrogen, produced via electrolysis powered by renewable electricity, currently sits closer to $4-6/kg in optimistic projections. Vema’s thesis is that by leveraging geology as a natural reactor, it can achieve that target years earlier and with a far smaller surface footprint and renewable energy draw.
A team built for the subsurface
The founders have assembled a team that reads like a subsurface special ops unit. This is not a software play.
- CEO Pierre Levin brings decades of experience in subsurface drilling and extraction, along with hydrogen market knowledge [Propeller VC].
- CTO Florian Osselin is a geochemist with specific expertise in catalytic hydrogen production in rock formations and field operations, previously a Founder in Residence at Marble [Propeller VC].
The company has also assembled a scientific advisory board of leading geologic hydrogen researchers, a necessary credential for a field where credibility is drilled, not tweeted [Vema.earth]. The early traction is measured in meters drilled, not monthly active users. Vema has completed its first two pilot wells in Quebec for what it calls the world’s first EMH test project and has joined the California Public Hydrogen Programme to advance its technology there [FuelCellsWorks] [Energynews.pro].
The competitive landscape of colored hydrogen
Vema is entering a nascent but increasingly crowded field of companies exploring natural and stimulated geologic hydrogen. Its path to market is clearer than some, but the scale of the technical and commercial climb is immense.
| Company | Primary Focus | Key Differentiator |
|---|---|---|
| Vema Hydrogen | Engineered Mineral Hydrogen (EMH) | Patented subsurface catalysis for controlled, low-energy H2 production [Vema.earth]. |
| Koloma | Geologic ("white") hydrogen | Hunting for naturally occurring accumulations of hydrogen, similar to natural gas [Private candid take]. |
| Gold Hydrogen | Natural hydrogen exploration | Focus on historic oil & gas regions with known seeps and legacy data [Private candid take]. |
Vema’s bet is that engineering a consistent, scalable reaction is a more reliable business than the prospecting model, which carries exploration risk akin to wildcat oil drilling. Its process is designed to work in a wider range of geologic settings, potentially unlocking more sites.
Where the geology gets tricky
The risks here are not about product-market fit in a traditional sense. They are about geochemical predictability, reservoir management, and the sheer difficulty of doing heavy industrial innovation on a startup budget. The sub-$1/kg LCOH claim is a projection, not a delivered invoice. Scaling from a pilot well to a commercial field requires proving that the reaction can be sustained and controlled over years, not weeks. Furthermore, the regulatory framework for subsurface hydrogen production is still being written, adding a layer of permitting uncertainty to the technical challenge.
Yet, the investor syndicate of specialist climate tech funds suggests the technical due diligence was rigorous. They are betting that if the Quebec pilot data is positive, Vema could leapfrog the decade-long scaling timeline of electrolyzer manufacturing by tapping into the existing global expertise and supply chain of the geothermal and oilfield services industries.
A back-of-the-envelope calculation puts the stakes in perspective. The global maritime sector consumes roughly 300 million metric tons of fuel annually. Displacing just 5% of that with hydrogen would require about 10 million tons of H2 per year. At Vema’s target price of $1/kg, that’s a $10 billion annual market for the fuel alone, before any infrastructure premiums. The company does not need to win the whole market to justify its valuation; it needs to prove one well works, and that the cost math holds.
For Vema to succeed, its orange hydrogen must ultimately be cheaper and more scalable than the green hydrogen produced by giants like Plug Power or Thyssenkrupp nucera. It is not competing with them on technology, but on a simple, brutal metric: the cost of a kilogram of gas delivered to a port. That is the only number that will convince a ship owner to switch.
Sources
- [H2-View, Unknown] Vema Hydrogen secures $13m to bring $1/kg hydrogen to market | https://www.h2-view.com/story/vema-hydrogen-secures-13m-to-bring-1-kg-hydrogen-to-market/2121924.article/
- [Mintz, April 2025] Sustainable Energy Infrastructure Client Feature: Vema | https://www.mintz.com/insights-center/viewpoints/2151/2025-04-02-sustainable-energy-infrastructure-client-feature-vema
- [Marble.studio, Unknown] Vema Hydrogen | https://marble.studio/companies/vema
- [Vema.earth, Unknown] VEMA Hydrogen | Engineered Mineral Hydrogen | https://www.vema.earth/
- [Propeller VC, Unknown] Meet Vema Hydrogen | https://propellervc.com/blog/meet-vema-hydrogen
- [FuelCellsWorks, Unknown] Vema Hydrogen completed drilling of first two pilot wells in Quebec for world's first EMH test project | https://fuelcellsworks.com/news/vema-hydrogen-completed-drilling-of-first-two-pilot-wells-in-quebec-for-worlds-first-emh-test-project/
- [Energynews.pro, Unknown] Vema Hydrogen Joins California Public Hydrogen Programme With Its EMH Technology | https://energynews.pro/en/vema-hydrogen-joins-california-public-hydrogen-programme-with-its-emh-technology/