Product1 publisher3 min readPublished
Geologic hydrogen joins the clean-fuel race with no cost curve and a leak problem
Electrolyzers and carbon-captured gas have both stalled on cost. The third option, digging hydrogen out of iron-rich rock, is now funded at scale but still unproven as a resource.
The Product Desk · Product desk
Drafted by a language model from the sources cited here and checked against its claim ledger before publication. How we use AISend a correction
What happened
- Hydrogen can be used as a fuel in applications from large trucks to planes to steelmaking, and when burned it produces water and oxygen rather than carbon emissions.
- Today hydrogen is overwhelmingly made using fossil fuels, generally natural gas.
- Most hydrogen produced today is used in petroleum refining or goes on to make fertilizer and other chemicals.
- MIT Technology Review's climate newsletter states that the race for clean hydrogen had been between methods using electrolyzers powered with renewable electricity and established fossil-fuel-based approaches cleaned up with carbon capture, and that both have struggled to gain ground largely because of their high cost.
- There has lately been momentum in the field of geologic hydrogen, with companies finding naturally occurring hydrogen resources across Africa, Asia, Europe, Australia and North America.
Compiled by The Product DeskSomething wrong?How this is made
Why it matters
The clean hydrogen conversation has been a two-horse race for years: electrolyzers running on renewable power, or conventional fossil-fuel production with carbon capture bolted on. According to MIT Technology Review, both have struggled to gain ground largely because they cost too much, and a third approach has picked up momentum in the meantime: finding hydrogen that the earth already made [s1c4][s1c5].
The physical case is not speculative. The US Geological Survey publishes a map of where hydrogen is most likely to occur naturally in the country, and one hot spot is the Midcontinent Rift, running from Kansas to Michigan [s1c6]. The crust was stretched and split there about a billion years ago, pushing up molten rock and leaving behind iron-rich formations that react with water to form hydrogen [s1c7]. Companies have reported naturally occurring hydrogen resources across Africa, Asia, Europe, Australia and North America [s1c5].
Money and samples are both showing up. HyTerra, an Australian company prospecting in Nebraska and Kansas, has found gas samples with hydrogen concentrations as high as 96 percent [s1c8]. Koloma, among the most capitalized firms in the field with total funding over $400 million, is working the same region [s1c9].
The unresolved question is not whether the reaction happens but whether the product can be collected. Hydrogen is extremely light and slips through even tiny cracks in rock, which makes accumulation, not generation, the binding constraint [s1c10][s1c11]. The most concrete data point in the piece is also a caution. Researchers examined a few dozen boreholes at a mine in northern Ontario and measured about eight kilograms of hydrogen released per borehole per year; the site has more than 14,000 boreholes [s1c12][s1c13]. Multiply those two numbers and the whole mine yields roughly 112 tonnes a year [s1c14]. That is a real seep, and it is a very small business.
Which is why some firms are not waiting for nature to accumulate anything. Stimulated geologic hydrogen targets places with the right conditions but no reservoir, then adds water, a catalyst or whatever else the reaction needs [s1c15]. Vema Hydrogen, based in Texas, is drilling wells and injecting water and catalysts, testing in Quebec, and hopes to reach full-scale production in 2028 [s1c16]. Eden GeoPower is using electricity to fracture rock so water has more paths in, a technique that also has application in enhanced geothermal [s1c17]. That is closer to an oilfield services business than a mining one, and it comes with the cost structure to match.
Even a successful well does not solve the part that has always hurt hydrogen: it is hard to move and store, needing either a lot of volume or very low temperatures to liquefy [s1c18]. Note also what hydrogen is actually for today. Most of it is made from natural gas and consumed in petroleum refining or turned into fertilizer and other chemicals [s1c2][s1c3], which means the first buyers for cheap subsurface hydrogen are industrial incumbents, not trucks and planes [s1c1].
Watch for a flow rate and a concentration from a purpose-drilled well, reported over months rather than as a spot sample. Watch Vema's 2028 target, and whether anyone in the Midcontinent Rift discloses reservoir volumes instead of gas assays.