Power Line · Diesel and gas generator sets

Lower fuel costs for the power you generate.

On-demand HHO added to your generator's air intake, with controls, safety interlocks and measurement built in. For gensets from 5 to 320 kVA — no hydrogen storage on site.

EFENA HHO unit in its stainless-steel enclosure, installed on a diesel generator set
5–320 kVAGenerator sizes covered
5 modelsMatched to generator size
15–35%*Reference fuel-savings range
5 daysTo a preliminary evaluation

* Reference range by generator size and load. Results are site-specific, net of the electrolyzer's own power use, and confirmed by measurement — not a universal guarantee.

Applications

Where every liter of fuel counts

The best candidates run many hours a month on expensive or hard-to-deliver fuel.

Off-grid and islands

Prime power where diesel arrives by ship or truck at a premium.

Continuous-duty plants

Hospitals, data centers and telecom sites with long monthly run hours.

Industry and construction

Oil and gas, mining, agribusiness and job sites with their own generation.

Engine-driven equipment

Pumps, compressors and light towers running on diesel or gas.

AHAC™ technology

How it works

Gas is made only while the generator runs, then sent through a protected gas train into the engine's air intake.

  1. 01

    Water + electrolyte

    EFENA-specified electrolyte, dosed automatically.

  2. 02

    P-series reactor

    Produces HHO on demand, sized to the generator.

  3. 03

    Protected gas train

    Separation, drying, check valves and flashback arrestor.

  4. 04

    Engine air intake

    HHO enters with the intake air for more complete combustion.

S.R.C.U. controller — regulates reactor power, dosing and pressure, runs protective shutdown, and logs the data used to verify results.

Safety

Protection engineered into every unit

No hydrogen storage

Point-of-use production, only while the engine runs.

Flashback protection

Flashback arrestor and check valves on the gas line.

Pressure control

Pressure sensing, mechanical pressure switch and relief.

Continuous monitoring

Temperature, level and electrolyte concentration.

Automatic shutdown

Electrical protection and alarms on any abnormal condition.

Site-specific engineering

Every installation gets its own safety review; existing generator controls stay intact.

Models

Choose by generator size

Find your generator's kVA on its nameplate. EFENA engineering confirms the final model from your takeoff.

ModelHHO outputGenerator sizeReference savings*
P16-11P0.83 LPM5–15 kVA20–35%
P16-21P1.58 LPM15–45 kVA20–35%
P16-41P3.09 LPM45–90 kVA15–30%
P20-41P5.10 LPM90–160 kVA15–30%
P24-41P7.62 LPM160–320 kVA15–30%

Power draw at 12.2 V · Reactor hardware shared with the Mobile Line · * Reference range; actual results depend on generator size, load and condition, and are confirmed by measurement.

Measured results

We report net benefit, measured on your generator

Net benefit
=
Measured fuel savings
−
Electrolyzer power
−
Electrolyte and maintenance

What we measure

  • Fuel consumed — flow meter or calibrated tank
  • Energy delivered by the generator (kW, kWh)
  • Electrolyzer electricity use (kWh)
  • Water and electrolyte use
  • Run hours, load and ambient conditions
  • Optional: O₂, CO, CO₂ and NOₓ in the exhaust

Key metric

Liters of fuel per kWh generated

Compared with HHO on and off at the same load, in repeated test sequences with calibrated instruments. Because the electrolyzer runs on the generator's own power, its draw is always counted.

Process

From takeoff to fleet in six steps

  1. 1

    Qualify

    Equipment, hours, fuel and goals

  2. 2

    Design

    Model, integration point, controls, acceptance criteria

  3. 3

    Baseline

    Measure current fuel use first

  4. 4

    Install

    Commission and train operators

  5. 5

    Validate

    On/off tests and net benefit

  6. 6

    Scale

    Monitor and roll out to more units

Get started

Start with a takeoff. Get a preliminary evaluation in 5 days.

One form covers several generators. Site-wide data is entered once per visit.

What we'll ask for each generator

  • Make, model and kVA rating
  • Average operating hours per month
  • Fuel type — diesel, gasoline, natural gas or propane
  • Fuel cost per liter, gallon or unit
  • Photos of the nameplate, engine and air intake

Frequently asked questions

Does HHO create energy?

No. HHO is made with electricity from the generator itself. The goal is more complete combustion of the fuel you already burn, and we report the result net of that electricity.

Is hydrogen stored on site?

No. Gas is produced on demand, only while the generator runs, and passes through flashback and pressure protections.

How will I know it's working?

We agree on a baseline and acceptance criteria before installing, then compare fuel per kWh with HHO on and off at the same load.

Which generators does it work with?

Diesel and gas generator sets from 5 to 320 kVA. Larger or unusual units: send us a takeoff and we'll assess them.

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