Why not store oxyhydrogen for buffering?

Stored oxyhydrogen would create a reactive inventory and a new hazard classification. On-demand generation eliminates the inventory and aligns the gas stream with the host plant's real-time duty cycle.

What happens if the host plant trips?

Generation halts under the trip-following interlock within the host's own response window. No oxyhydrogen continues to be produced once the combustion duty cycle ends.

What utilities does the generator require?

Demineralised water for electrolysis and a controlled electrical feed. No hydrocarbons, no precursor gases, and no external hydrogen supply.

Does the generator change the plant's safety case?

The host asset's pressure parts, DCS, and operating envelope are unchanged. Generation is additive, rate-limited, interlocked, and combustion-adjacent.

Technical Brief · TB-008 · Generation

On-demand hydrogen generation for industrial combustion.

HydroHub™ produces industrial oxyhydrogen on demand at the point of use. There is no bulk storage of reactive gas. Generation is rate-limited, interlocked with the host plant, and stops automatically outside predefined envelopes.

DOC · TB-008 · ON-DEMAND GENERATION · REV 01

Rationale

Why on-demand, not stored.

Stored hydrogen or stored oxyhydrogen would introduce a reactive gas inventory into a thermal-asset envelope — adding hazard classification, regulatory burden, and a control surface that the host plant was never designed for.

On-demand generation eliminates that inventory entirely. The gas is produced only when the host plant is combusting fuel within its defined envelope, in the quantity required, and at the rate required. When the plant trips, generation stops.

Architecture

Generator architecture.

The HydroHub™ generator applies a controlled DC current across an electrolyte stack. Hydrogen liberates at the cathode and oxygen at the anode, combined into a manifolded oxyhydrogen stream metered into the combustion air path of the host asset.

Production rate is closed-loop on host-plant parameters — load, airflow, fuel feed, and unit protections — so the stream modulates in real time with the combustion duty cycle.

Safety logic

Interlocks and shutdown logic.

Generation is interlocked with the host plant's protective systems. Loss of load, loss of flame, unit trip, or excursion from predefined envelopes triggers automatic shutdown of the generator within the response window of the host trip system.

No oxyhydrogen is buffered downstream of the generator. The residual line inventory is purged into the combustion path under controlled flow when the system is brought down for maintenance.

Siting

Siting, footprint, and utility envelope.

HydroHub™ is sited adjacent to the host asset within the existing plant boundary. Footprint is modest relative to a utility-scale boiler island. Required utilities are demineralised water and a controlled electrical feed.

No modification of the host plant's pressure parts, Distributed Control System, or operating envelope is required. The asset's safety case is preserved.

Industrial Environments

Where this technology is deployed.

Coal-fired utility boilers — base-load and cycling
Combined-cycle and conventional gas-fired thermal units
Cement and lime kilns under continuous load
Steel reheat and metallurgical furnaces
Refining and petrochemical process heaters
Captive industrial boilers in heavy manufacturing

Glossary

Technical terminology.

On-demand generation: Production rate-matched to the host plant's real-time combustion demand, with no bulk storage of reactive gas at any point.
Rate-limited delivery: An engineered constraint capping oxyhydrogen flow into the combustion path to a defined fraction of total combustion air.
Trip-following interlock: Generator shutdown logic slaved to the host plant's protective trips, ensuring oxyhydrogen production stops within the host's own response window.
Point-of-use generation: Electrolyser sited adjacent to the host asset so that the gas travels the shortest possible path from production to combustion.

FAQ