Buy optionality, not a fuel bet you cannot unwind

Pick the trade that matches your historical voyage record. It sets EU carbon scope, wind resource and steady-steaming share.

Total cost of ownership is capex plus off-hire plus the discounted bunker, carbon and maintenance bill over 12 years on north europe / baltic short sea.

How optionality is valued

An irreversible conversion spends your right to wait. Under fuel-price and regulatory uncertainty that right has a price, so the model treats each pathway's reversibility as a real option: capital at risk multiplied by an uncertainty factor that rises with your carbon-escalation assumption, scaled by how much technical and commercial flexibility the fit preserves. Reversible energy-saving devices score high because they cut fuel today and leave every fuel pathway open tomorrow; a dual-fuel conversion scores low because it commits the ship to one bet.

• · Carbon cost applies to the EU-scoped share of the trade only, escalated in real terms.
• · Wind-assist yield tracks the route's wind index; air lubrication tracks steady steaming.
• · Stacked devices are de-rated for interaction, not simply added together.
• · 3.4 t CO₂ per tonne of conventional fuel, well-to-wake.

Planning model, not a guarantee. Inside Full Ahead Maritime the same engine runs on your own logged voyages, bunker records and running hours instead of these defaults.