Industries & Engines

NanoEFX for power generation

NanoEFX is a passive, water-based air-filter treatment for combustion engines with a treatable intake filter or medium. Results across documented combustion applications give us reason to expect an effect under suitable operating conditions, but load and duty cycle matter. Our eleven-site telecom-generator trial produced a small positive median fuel-saving result of 1.7%, with site results ranging from −1.6% to +5.7%; that result was too small and variable to establish a clear treatment effect for the duty cycle tested. Separate heavy-oil boiler applications under real heat demand produced substantially stronger positive results.

A power-generation site silhouetted against a sunset sky
Prime-power gensets run for long hours — so a gain in combustion efficiency shows up directly on the fuel bill.
NanoEFX for power generation — at a glance
TreatmentPassive, water-based air-filter coating — not a fuel additive or ECU remap
Applies toDiesel gensets · Gas gensets · Prime & backup power · CHP units · Irrigation & pump engines
FuelsDiesel · Natural gas · Biogas · Biodiesel
ApplicationSprayed onto the existing air filter · 20–45 min · no downtime
ReapplicationBy run-hours & engine size (gensets are measured in operating hours)
Engine changesNone — no modification, remap or retrofit
Regulatory contextEU Stage V engine-emission standards (non-road engines, incl. generating sets)
What it is

A coating on the air filter — not a fuel additive or a remap

NanoEFX is sprayed onto the engine's existing air filter, where it dries into a thin, breathable nano-coating. As the engine draws air through that treated surface, the coating conditions the intake air before combustion — supporting a cleaner, more complete and more efficient burn. For a generator fleet, that means the same treatment works across every engine that breathes through a treatable filter.

What it is

  • A passive nanostructured intake-air treatment
  • Applied to the air filter you already service
  • Water-based — dries to a thin, breathable coating
  • Works before combustion, at the intake-air stage

What it isn't

  • A fuel additive or oil additive
  • An ECU remap or tuning
  • A mechanical retrofit or powered device
  • Anything that changes how you operate

See exactly how it works and the full ingredient system →

Why it matters

Three pressures every power operator already feels

These are the forces that make intake-air efficiency worth acting on — independent of any single engine or duty cycle.

Fuel is the cost of every running hour

For prime power and long run-hours, fuel is the dominant operating cost of a genset. Because the effect repeats every hour the engine runs, even a modest efficiency gain accumulates quickly.

Air-quality permits and emissions limits

Gensets and power sites operate under emissions permits and local air-quality rules. A more complete burn means less CO, unburned hydrocarbons and soot, without replacing the engine or retrofitting hardware.

Carbon reporting on on-site generation

Organisations increasingly measure, report and price the Scope 1 emissions from their own generation. Burning less fuel directly lowers both the fuel cost and the reported carbon.

Want the numbers for your own fleet? The ROI & EU ETS calculator models fuel-cost and carbon-cost savings from your own figures — you set the efficiency assumption.

Regulatory sources: EU Stage V — Regulation (EU) 2016/1628 (non-road engines) · Other regions (USA, Japan, China, and more) →

What we have measured

Our own trials in this duty cycle

This is the duty cycle with our most limited result. Our eleven-site generator trial produced a small positive median but no clear treatment effect — and our stationary boiler data, on plant that carries real load, is among the most consistent we hold. Both belong on this page.

What this duty cycle actually consumes

The generator sites in our Nigerian trial consumed between 8 and 114 litres per day each; the heavy-oil boilers in our Japanese record between 21,500 and 37,300 litres per month. The difference in outcome between the two is the thing worth understanding before treating any stationary plant.

Nigeria · 11 generator sites · 2025

IHS Towers

+1.7% median · limited

Median +1.7%, two sites worse. The operator recorded no observable savings at four of eleven sites. Published in full.

Read the trial
Japan · 2 boilers · 2013 → 2014

Hot-spring hotel boilers

−10.7% … −16.0%

Six monthly measurements, each against the same month a year earlier — our most consistent stationary result.

Read the trial

All trial results, including the weak and mixed ones · every individual measurement we hold

How a trial is run and what each method can show: measurement methodology. What we measured at the exhaust: emissions. Everything in one place: the evidence section.

What it covers

From prime and backup gensets to CHP

Power generation is rarely one engine. NanoEFX applies to generator engines that breathe through a treatable air filter, and it conditions the intake air regardless of the fuel burned.

Equipment types

Diesel gensets Gas gensets Prime & backup power CHP units Irrigation & pump engines

Fuels

Diesel Natural gas Biogas Biodiesel
How it's applied

No workshop, no downtime, no new hardware

NanoEFX is applied by your own team, onto the air filter they already remove at service. It rides on the maintenance you do anyway rather than adding a new one.

NanoEFX water-based spray being applied evenly to an engine air filter
Application is a spray onto the existing air filter — no parts, no calibration, no mechanic. It dries to a thin, breathable coating and the filter is refitted.
Applied by your own team Gensets: calculated by run-hours & engine size No engine modification No downtime

What a cleaner burn means for a generator fleet

Lower fuel spend — more complete combustion means less wasted fuel.
Lower CO₂ for ESG reporting — burning less fuel lowers your Scope 1 emissions.
More complete combustion would generally reduce CO and unburned hydrocarbons; our one accredited exhaust measurement recorded lower CO, HC and NOx on one vehicle.
Less carbon buildup — a cleaner burn forms fewer new deposits, easing maintenance over time.

NanoEFX doesn't add energy or oxygen and doesn't modify your engine — it helps the engine waste less of the energy already in the fuel. NOx response is engine- and control-system dependent.

Power generation — FAQ

Common questions from operators

Does NanoEFX work on diesel and gas gensets?
We have reason to expect an effect in suitable generator engines with a treatable intake filter or medium, based on results across documented combustion-engine applications. Our eleven-site telecom-generator trial produced a small positive median result of 1.7%, but did not establish a clear treatment effect for that duty cycle. According to the operator, those generators spent more than 90% of their running time at idle with no load; this is a plausible explanation for the limited result, although load was not recorded in the trial workbook. Separate heavy-oil boiler applications under load produced substantially stronger positive results. For generator installations, the result should therefore be measured under the actual load profile rather than promised in advance.
Will it change the engine or its controls?
No. NanoEFX is a passive coating on the air filter. It is not a fuel additive, an oil additive, an engine-control change or a mechanical retrofit, and it makes no change to the engine’s hardware or software.
How often does it need reapplying on a genset?
Reapplication is calculated by run-hours and engine size rather than distance, because generators are measured in operating hours. It is applied by your own team with no downtime, riding on servicing you already carry out.
Does it help with emissions permits and reporting?
It can support cleaner combustion, but this is the page where we have to be precise about the evidence. On eleven telecom tower generator sites, the documented trial produced a small positive median fuel-saving result of 1.7%, with individual site results ranging from −1.6% to +5.7%. That was not sufficient to establish a clear treatment effect for the duty cycle tested. According to the operator, the generators spent more than 90% of their running time at idle with no load, although the workbook contains no load data with which to verify that explanation. On heavy-oil boilers carrying real heat demand, six monthly comparisons showed 10.7% to 16.0% lower consumption. Our only accredited exhaust measurement (JATA) was on a road vehicle, not a genset, and recorded CO −30.4%, HC −23.3%, NOx −15.1%. NanoEFX is not an emissions certification and will not, by itself, satisfy a permit condition.
Prove it on your own fleet

Don't take the claim — measure it

The most honest evidence is your own baseline. In a NanoEFX pilot you run a controlled trial on your own engines, measured against your own fuel data — and you only pay if it proves savings.

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