HydroHub™
HydroHub™
Transport · Fleet · Gensets
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Hydrogen Injection Knowledge Hub

What PEM hydrogen injection is, what the published evidence supports, how it differs from legacy alkaline HHO hardware, and how to trial it properly on your own equipment.

How PEM Hydrogen Injection Works

A HydroHub™ system does not fuel the engine with hydrogen. It generates a small, continuous stream of mixed hydrogen and oxygen from purified water and feeds it into the intake air, where it acts on the way the existing diesel or gasoline charge burns.

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Does Hydrogen Injection Actually Work?

The honest answer is: consistently yes on combustion quality, variably on fuel consumption, and only when the engine, duty cycle and measurement method are right. Here is what the literature supports and what it does not.

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Hydrogen Injection for Fleets

Fleet deployment is a measurement problem before it is a hardware problem. This page sets out how to size, install, trial and scale hydrogen injection across a mixed fleet.

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Types of Hydrogen Technology for Engines

"Hydrogen" covers four very different product categories with different capital costs, infrastructure needs and risk profiles. Confusing them is the most common source of bad procurement decisions.

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Hydrogen Injection Supplier Comparison

Most units on the market are alkaline cells sold on subscription with sizing benchmarks carried over from industrial applications. The differences below are the ones that change cost of ownership.

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Emissions and Hydrogen Enrichment

Hydrogen enrichment consistently reduces products of incomplete combustion. It does not reduce every pollutant, and the NOₓ question must be addressed directly rather than skipped.

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