Fleet Fuel & EU ETS Savings Calculator
Use the calculator to model potential fuel-cost savings and an ETS2-related carbon-cost scenario using your own fleet, fuel-price and reduction assumptions. The result is an indicative gross benefit, not a guaranteed return; net ROI and payback also depend on the actual NanoEFX programme cost and the fuel-consumption reduction measured in your fleet. What those numbers mean for your reporting is set out under ROI & ESG, and the measurements behind the reduction figure are in the evidence section.
Your fleet
Adjust any value — results update instantly.
Enter today's pump price for your country — European diesel currently sits around €2.00/L.
Most documented trials fall between 5% and 15% less fuel, median 10.7% — and on one duty cycle the result was small and inconclusive. See every trial.
You are above 15% — beyond the band most of our trials fall into.
Your annual savings
Whole fleet, per year, at the reduction shown.
Your report — select all and press Ctrl/⌘ + C to copy.
How this is calculated (method & assumptions)
- Total annual fuel = fleet size × average annual fuel per vehicle.
- Litres saved = total annual fuel × reduction %.
- Fuel cost saved = litres saved × fuel price per litre.
- CO₂ avoided = litres saved × emission factor ÷ 1000 → tonnes. Factors: diesel
2.68 kg/L, petrol2.31 kg/L(standard tank-to-wheel combustion factors). - ETS2-related carbon-cost scenario = CO₂ avoided (t) × carbon-price assumption (€/t).
- Total annual saving = fuel cost saved + ETS2-related carbon-cost scenario.
ETS2 is an upstream emissions-trading system: regulated fuel suppliers, rather than individual fleets, carry the compliance obligation. For fleet planning, the calculator therefore treats the carbon-price input as a scenario for potential ETS2-related carbon-cost pass-through in road-transport fuel prices. Lower fuel use can reduce exposure to that pass-through. See the regulatory context for the current timetable, and set the carbon-price assumption to the figure relevant to your market and planning case.
Indicative estimate for planning purposes only. The calculator shows an indicative gross benefit; net ROI and payback also depend on the actual NanoEFX programme cost. Actual savings depend on duty cycle, vehicle mix, baseline fuel consumption, verified reduction achieved, fuel and carbon prices, and applicable regulation. Figures are not a guarantee. Emission factors are standard combustion (tank-to-wheel) values; use your own certified factors where required. © NanoEFX.