Aonfinn by 4M Controls
Energy analytics for hybrid ships

Hybrid fuel savings, predicted and measured

Aonfinn works out how much fuel, money and CO₂ a battery hybrid saves on your ship, from its own equipment and the way it sails. Once the ship is in service, each crossing is checked against that prediction.

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A study's Summary: the fuel saved against diesel only, the investment, and fuel and CO₂ saved a year.
A study's Summary for an example ferry: fuel against diesel, the investment, and CO₂ for one ship.

Fuel · payback · CO₂

Fuel saved each year, how soon the battery pays for itself, the CO₂ avoided and the effect on EU emissions charges.

Your ship's equipment

Built from your ship's own generators, battery and shore connection, and how it is actually used.

Real engineering, not a brochure

The fuel each crossing burns is logged and set beside the prediction, so the figures are checked against real use.

Why now

EU rules now put a price on every tonne of fuel a ship burns

Aonfinn shows what each rule means for your ship, with and without a hybrid.

FuelEU Maritime

Limits the greenhouse gas in the fuel a ship uses, tightening every five years, with a penalty for ships over the limit.

Aonfinn: your ship's balance and penalty, diesel only and hybrid.

EU emissions trading

Ships now pay for the CO₂ they emit on voyages to, from and within the EU.

Aonfinn: the cost of the CO₂ the hybrid avoids, year by year.

Shore power from 2030

Passenger and container ships must plug in at berth in major EU ports.

Aonfinn: the shore connection and its electricity price in the business case.

How it works

From first study to measured crossings

  1. 1 · Plan

    Describe the ship

    Its generators, battery, shore connection and a typical day. Aonfinn works out fuel, cost, payback and CO₂.

  2. 2 · Fit

    Choose the battery

    Compare battery sizes and see how fuel saved and payback change with each.

  3. 3 · Sail

    Run the hybrid

    Our power management system runs the hybrid on board and records each crossing.

  4. 4 · Compare

    Check the saving

    Each crossing's fuel is set beside the prediction, so you see what the hybrid really saves.

Talk to us about your ship

Tell us about the vessel and how it sails. We'll set up a study and walk you through it.

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