FREE GUIDE

Optimise your fuel strategy in seconds

PRODUCT UPDATE: Choosing the right fuel has never been more complex, or more important. With the new Optimiser function in the Siglar Carbon Estimator, you can now instantly identify which bunker fuel delivers the lowest combined cost across bunker, EU Allowances (EUAs), and FuelEU compliance.
Download guide

PRODUCT UPDATE: Choosing the right fuel has never been more complex, or more important. With the new Optimiser function in the Siglar Carbon Estimator, you can now instantly identify which bunker fuel delivers the lowest combined cost across bunker, EU Allowances (EUAs), and FuelEU compliance.

In less than a minute, the Optimiser shows you whether switching fuel to bioblend or other fuel types, or buying compliance surplus is the most cost-efficient path for your voyage.

From estimation to optimisation

To get started, open the Estimator and enter the usual: ship name, ports, and cargo size. Getting estimates of emissions and costs is as simple as ever. At the same time, you’re ready to optimise.

For example, when evaluating a Rotterdam–Koper voyage for the vessel RICH HARVEST, the Estimator immediately provides a base case. Since this route operates within an Emissions Control Area (ECA), the base fuel was switched to MGO to avoid the need for high-quality scrubbers.

The Estimator calculates the EUA cost to approximately to approximately USD 76 800 and the associated FuelEU cost at about USD 5 900 (using adjustable FuelEU pooling cost of 260 USD per ton).

Screenshot Siglar Carbon Estimator - Example MGO base case

But what if another strategy could reduce these costs?

Compare strategies and find the lowest cost

With the Optimiser, you can now test possible scenarios. All you need to do, is add alternative fuel types and define bunker prices along with your compliance cost.

Then the Optimiser will run the numbers and reveal which option gives you the lowest total cost, factoring in:

  • Bunker fuel price
  • EUA cost
  • FuelEU Pooling Cost/Value

Returning to our example voyage: using, for instance, B30-FAME-MGO, you would add today’s bunker prices, USD 830 for B30 and USD 650 for MGO. If a FuelEU pooling cost/value is unavailable, a standard rate of USD 260 per ton may be applied. If wanting to compare against the FuelEU penalty, then a rate of roughly 740 USD can be applied.

The Optimiser finds that using B30 FAME MGO slightly outperformes MGO, reducing total voyage cost from USD 323 671 to 299 414.

Screenshot Siglar Carbon Estimator, Example using B30-FAME-MGO

In a case where you do not want to allow FuelEu surplus generation, but rather want offset this single voyage, the Optimiser suggests using MGO, but enough B30_FAME_MGO to offsett the FuelEU compliance.

Screenshot Siglar Carbon Estimator - Example FuelEU balance

Your AI assistant for fuel and compliance economics

The Optimiser combines commercial reality with Siglar’s AI-powered consumption modelling and emissions calculator. The result is a tool that lets you make faster and smarter bunker decisions, balancing cost, compliance, and emissions exposure in one view.



If you have any questions about the Optimiser tool, please do not hesitate to
send us a message. or give us a call at +47 906 42 020.


Optimise your fuel strategy in seconds

PRODUCT UPDATE: Choosing the right fuel has never been more complex, or more important. With the new Optimiser function in the Siglar Carbon Estimator, you can now instantly identify which bunker fuel delivers the lowest combined cost across bunker, EU Allowances (EUAs), and FuelEU compliance.

In less than a minute, the Optimiser shows you whether switching fuel to bioblend or other fuel types, or buying compliance surplus is the most cost-efficient path for your voyage.

From estimation to optimisation

To get started, open the Estimator and enter the usual: ship name, ports, and cargo size. Getting estimates of emissions and costs is as simple as ever. At the same time, you’re ready to optimise.

For example, when evaluating a Rotterdam–Koper voyage for the vessel RICH HARVEST, the Estimator immediately provides a base case. Since this route operates within an Emissions Control Area (ECA), the base fuel was switched to MGO to avoid the need for high-quality scrubbers.

The Estimator calculates the EUA cost to approximately to approximately USD 76 800 and the associated FuelEU cost at about USD 5 900 (using adjustable FuelEU pooling cost of 260 USD per ton).

Screenshot Siglar Carbon Estimator - Example MGO base case

But what if another strategy could reduce these costs?

Compare strategies and find the lowest cost

With the Optimiser, you can now test possible scenarios. All you need to do, is add alternative fuel types and define bunker prices along with your compliance cost.

Then the Optimiser will run the numbers and reveal which option gives you the lowest total cost, factoring in:

  • Bunker fuel price
  • EUA cost
  • FuelEU Pooling Cost/Value

Returning to our example voyage: using, for instance, B30-FAME-MGO, you would add today’s bunker prices, USD 830 for B30 and USD 650 for MGO. If a FuelEU pooling cost/value is unavailable, a standard rate of USD 260 per ton may be applied. If wanting to compare against the FuelEU penalty, then a rate of roughly 740 USD can be applied.

The Optimiser finds that using B30 FAME MGO slightly outperformes MGO, reducing total voyage cost from USD 323 671 to 299 414.

Screenshot Siglar Carbon Estimator, Example using B30-FAME-MGO

In a case where you do not want to allow FuelEu surplus generation, but rather want offset this single voyage, the Optimiser suggests using MGO, but enough B30_FAME_MGO to offsett the FuelEU compliance.

Screenshot Siglar Carbon Estimator - Example FuelEU balance

Your AI assistant for fuel and compliance economics

The Optimiser combines commercial reality with Siglar’s AI-powered consumption modelling and emissions calculator. The result is a tool that lets you make faster and smarter bunker decisions, balancing cost, compliance, and emissions exposure in one view.



If you have any questions about the Optimiser tool, please do not hesitate to
send us a message. or give us a call at +47 906 42 020.