Salt Water Is Not a Shortcut, But It May Point to the Next Breakthrough
The water demands of hydrogen production present engineers with a practical design brief: use less freshwater, improve treatment, and find workable alternatives.
Picture a gallon of water sitting on a workbench. For hydrogen producers, it contains both an opportunity and a series of engineering problems.
Through electrolysis, electricity separates water molecules into hydrogen and oxygen. The process appears simple when reduced to a diagram, but producing hydrogen at scale requires closer attention to water quality, treatment, energy use, and local supply. Questions about electrolysis and water therefore extend far beyond the chemistry inside an electrolyzer.
Whitaker Irvin Jr., chief executive officer of Q Hydrogen, views those questions as part of the work rather than a reason to abandon it. Drawing on experience in defense, power generation, grid infrastructure, hydrogen production, and water systems, he expects engineers to steadily reduce water requirements and expand the range of sources hydrogen systems can use.
One Gallon, Several Engineering Decisions
Hydrogen can be produced through several conventional methods, including steam reforming and electrolysis. Although their processes differ, water remains an important part of the broader production conversation.
With electrolysis, only part of the water molecule becomes hydrogen. Oxygen makes up the remainder, and the incoming water must be clean enough for the selected equipment. At commercial scale, that requirement can create significant freshwater demand.
That does not make carbonless fuel water use an impossible equation to solve. It turns one broad concern into specific questions. How much water does a system require? What level of purity does it need? Can water be recovered or reused? Which treatment steps consume the most energy?
Each question gives clean fuel engineering a clearer target.
Why Ocean Water Cannot Simply Go in
Saltwater may appear to be an easy substitute, especially when freshwater supplies are under pressure. In practice, conventional electrolyzers generally cannot accept untreated ocean water. Salts, minerals, and other materials must often be removed first through desalination technology or another pretreatment system.
Brackish water presents similar complications. It may contain less salt than seawater, but brackish water technology still has to account for contaminants, mineral content, equipment compatibility, energy costs, and the condition of the source.
The key distinction is that alternative water sources may become useful, but they are not automatically usable. Replacing freshwater may require another engineered system in addition to the hydrogen facility.
Reducing Demand Before Expanding Supply
Q Hydrogen can publicly state that its proprietary process uses a fraction of the water normally associated with hydrogen production. The company does not disclose the mechanism or the exact percentage of the reduction.
That restraint matters. Discussions of water-efficient hydrogen should focus on supported performance rather than speculation about protected technology. Q Hydrogen’s Clear Hydrogen process has received third-party validation from engineers and scientists, while its first commercial facility is under development with an initial planned capacity of 10 megawatts and a path toward 100 megawatts.
Irvin has also built relationships with specialists in water treatment, reuse, and desalination. After connecting with leaders from the International Desalination and Reuse Association at the 2026 World Economic Forum in Davos, Q Hydrogen joined the organization. Its broader portfolio includes work on water cleanup and desalination, although Irvin sees collaboration with established specialists as central to advancing these areas responsibly.
A Constraint That Creates a Road Map
Future progress may come through several connected improvements: lowering the amount of water required, reducing the energy burden of pretreatment, recovering more water within a system, and adapting equipment to a wider range of inputs.
No single method will suit every community or location. Coastal facilities, inland industrial sites, and regions facing water scarcity will present different resource constraints and limits. Practical hydrogen innovation will depend on designing around local conditions rather than assuming a single source or treatment method will work everywhere.
Return to that gallon on the workbench. It is no longer simply a feedstock. It is a chemistry problem, a treatment problem, an energy problem, and a community resource.
That complexity is exactly what makes the challenge useful. Water use provides engineers with a set of questions they can measure, test, and solve. The next meaningful advance may begin not by avoiding the constraint, but by designing carefully within it.