IN Brief:
- Value Maritime will retrofit two Neptune Lines pure car and truck carriers with Filtree systems.
- The installations are planned for summer 2026 and will cover the Neptune Tharros and Neptune Ethos.
- The project extends emissions-reduction and carbon-capture-ready retrofit technology into Mediterranean ro-ro shipping.
Value Maritime will retrofit two Neptune Lines pure car and truck carriers with its Filtree emissions-reduction system, extending the technology into the vehicle carrier segment.
The installations will take place on the Neptune Tharros and Neptune Ethos, two 4,700 RT capacity vessels operating in the Mediterranean. Each system will use a 15MW configuration, with installation scheduled for summer 2026.
Filtree is designed to reduce sulphur oxide emissions and particulate matter while providing a route towards future onboard carbon capture. The system removes up to 98% of sulphur oxides for sulphur emission control area compliance and can also remove fine particulate matter from exhaust gases.
The project marks the first installation of the system on pure car and truck carrier vessels. For ro-ro operators, automotive logistics providers, ports, and vehicle manufacturers, the deployment adds another retrofit option for vessel emissions management in regional shipping.
Neptune Lines operates in a sector where environmental performance is becoming increasingly tied to customer requirements, port policy, and regulatory compliance. Vehicle carriers work across regional trading routes, often calling at multiple ports and operating close to coastal populations, where emissions scrutiny is high.
Shipping decarbonisation is no longer being driven only by newbuild decisions. Existing vessels will remain in service for years, giving retrofit technology a central role in bridging today’s operations and longer-term fuel transition. Exhaust treatment, efficiency measures, wind-assist systems, and carbon-capture-ready installations are all being evaluated as operators manage a fleet that cannot be replaced quickly.
The automotive logistics angle adds further pressure. Vehicle manufacturers are being pushed to reduce emissions across the full chain of production and distribution, including finished vehicle movements by sea. Cleaner short-sea transport can support broader Scope 3 reporting, particularly as carmakers already face scrutiny over lifecycle emissions and electrification.
Maritime operators are testing several pathways at once. Green Instruments’ expansion on shipping emissions demand and Eastern Pacific Shipping’s installation of bound4blue eSAILs on a newbuild tanker show how vessel owners and suppliers are combining compliance, efficiency, and emerging decarbonisation tools rather than waiting for one dominant solution.
The Mediterranean is a strong operating environment for this kind of deployment. Dense shipping activity, short-sea trade, environmental regulation, and frequent port calls make vessel emissions management commercially and operationally visible. Operators moving vehicles across regional routes need systems that can work within tight schedules and varied port requirements.
Carbon-capture-ready technology remains in an early phase for shipping, with commercial adoption dependent on capture performance, storage logistics, port reception infrastructure, carbon accounting, and cost. Preparing vessels for future capture capability gives operators more flexibility as carbon rules and customer requirements develop.
The retrofit also highlights the role of maritime equipment suppliers in supply chain decarbonisation. Ports, shipping lines, cargo owners, and manufacturers all face pressure to cut emissions, but existing-vessel technology will determine how much progress can be made before alternative fuels and new fleet designs reach meaningful scale.
For Neptune Lines, the two-vessel programme provides practical experience with emissions-reduction technology on live ro-ro operations. For Value Maritime, it opens another vessel segment and strengthens its position in the retrofit market at a time when shipping companies are looking for compliance options that work on existing tonnage.
