International ferry project shows promising results

Results at the halfway mark of the REISFER project have exceeded original expectations. Funded through the Interreg Central Baltic programme, the project is intended to reduce CO2 emissions on ferries serving islands in the Baltic Sea by 10 to 20 per cent.

The cross-border project started 18 months ago with the aim of reducing emissions on selected ferry routes in Estonia, Finland, Åland and Sweden through electrification, technology upgrades and operational measures.

Thus far, the most striking success has been the full electrification of the M/S Silverö, which is operated by Swedish company Blidösundsbolaget. The replacement of diesel engines with electric propulsion is a significant step towards cleaner, quieter and more sustainable ferry traffic. The vessel runs on renewable energy and the reduction in emissions exceeds REISFER’s initial target.

Ferries in all participating regions have been equipped with energy management systems that allow crews to monitor fuel consumption in real time, make adjustments and develop long-term energy-saving strategies.

Other pilot activities include:

• installing LED lighting and efficient HVAC systems;
• hull blasting and painting to reduce resistance through the water; and
• studying route optimisation and alternative transport solutions.

REISFER is also exploring non-technical solutions to reduce emissions. One study looked at an alternative route to the Estonian island Kihnu, revealing both potential environmental benefits and improved navigational safety – although with a longer payback period.

To support long-term change, REISFER is conducting supplementary studies of ferry market dynamics, business environments and stakeholder perceptions. The first study has mapped the current situation and trends in ownership, financing, procurement criteria and contract lengths in the Central Baltic region.

The project has also established a network of ferry owners and operators, held meetings with external experts and organised international conferences. The second REISFER Island Ferry Summit is planned for April 2026 in Stockholm.

Translation: CBG