Engineering for cleaner ships, marinas and ports.

We design and calculate the changes that let vessels, marinas and ports run on electricity and cleaner fuels, from first concept to detailed design.

Book an introductionSee projects
ElectrificationHybrid and battery-electric
Cleaner fuelsMethanol conversion
Shore sideShore power and charging

What we do

A team of marine and mechanical engineers. Every study has a fixed scope and a fixed fee.

Vessel electrification

Battery-electric and hybrid propulsion for workboats, ferries, tour boats and tugs.

  • Operating profile and energy demand
  • Battery and drivetrain sizing
  • Stability and weight
  • System layout on board

Alternative fuel retrofits

Converting existing vessels to methanol and other low-carbon fuels.

  • Tank arrangement and safety zones
  • Engine options and fuel system
  • Class requirements
  • Emissions before and after

Ports and marinas

Getting the shore side ready for electric and cleaner vessels.

  • Shore power and charging
  • Energy and emission baselines
  • Technical input for upgrades
  • Support for tenders

Selected work

Existing vessels, real constraints.

't Jansje

Inland vessel, over 120 years old

Full redesign of a historic inland vessel to sail emission-free on salt-water batteries, in a consortium with Fieldlab Loods M and Even Groene Vrienden. We carried out the complete design process. The main challenge was the added weight of the batteries: we worked out how much buoyancy and stability margin the hull had left and arranged the battery system around it.

22 kWelectric motor, replacing 73.5 kW diesel
112 kWhhybrid salt-water and LFP battery
0local emissions

Acta Auriga

93 m walk-to-work vessel, Ulstein SX195

Retrofit design to convert this offshore wind support vessel to run on methanol. The design covers fuel tank arrangement, safety systems and the new power plant, keeping DP2 redundancy and 30-day autonomy.

5760 ekWfour dual-fuel methanol gensets
-72%NOx per campaign
-95%CO2 on renewable methanol

Feadship

Leading Dutch superyacht builder

Knowledge and innovation research, working on new technology for some of the most demanding yachts built today.

Which vessel or port do you want to make cleaner?

Send a short email with the vessel type or location and how it is used. You will hear back within two working days.

Email
info@qantara-engineering.nl
Phone
+31 6 40 76 11 34
KVK
42175611