Learning the Hydrogen Age From Geology to Hydrogen Systems

What I’ve Learned Recently

by Randolph A Lewis:

We are entering the Hydrogen Age, not because hydrogen is new, but because we are finally learning how to produce it predictably, continuously, and cleanly. The problem has never been hydrogen itself. The problem has been heat, pressure, control, and time. What I’ve learned recently is how natural processes already solve those problems—and how they can be integrated into a single, workable system.

I learned that serpentinization is not a theory or an edge case. It is a natural water–rock reaction that produces hydrogen when heat, pressure, and ultramafic minerals are present. The reaction is slow, continuous, and predictable. It oxidizes iron, forms serpentine minerals and magnetite, releases hydrogen, and generates heat. Just as importantly, I learned that serpentine minerals can trap carbon, converting CO₂ into stable solid carbonates. That means serpentinization is not only a hydrogen-producing process, but also a long-term carbon-locking mechanism.

I learned that basalt is not passive rock. It is chemically compatible, thermally stable, and structurally reliable at high temperatures. When fractured, it becomes permeable, allowing water and heat to move through it in controlled ways. Basalt can act as a durable heat host, a pressure-tolerant structure, and a medium that supports long-duration thermal and chemical processes rather than short, high-intensity events.

I learned how flash steam turbines actually work in practice. High-temperature, high-pressure water does not need to be fully boiled. When pressure drops, only a portion of the water flashes into steam, and that steam can be used to extract work through a turbine. These systems are mechanically simpler than traditional boilers, tolerate lower-quality steam, and are best suited for steady, predictable heat rather than peak efficiency. I also learned that condensers are essential, not optional. They create the low-pressure sink that allows turbines to function, collapse steam back into liquid water, and enable closed-loop reuse of both water and heat.

The most important insight I gained came from understanding deep-sea pressure. At depth, natural ambient pressure allows water to remain liquid at very high temperatures. In that environment, a Hot-Rock system effectively becomes a clean boiler, transferring heat directly into pressurized water without combustion or flame. As that superheated water rises toward regions of lower pressure, a portion of it flash-converts into steam. That pressure drop does the work automatically. The ocean itself provides pressure at depth and cooling near the surface, eliminating the need for heavy artificial pressure vessels.

Taken together, I learned that these elements—serpentinization, basalt, flash steam, condensation, and deep-sea pressure—are not separate ideas. They are compatible parts of a single physical system built on known chemistry, thermodynamics, and geology. Nothing depends on speculative physics. Everything depends on control of heat, pressure, flow, and time.

That is what I’ve learned.