Scandlines converting ferries to plug-in hybrids

The aim is to reduce CO2e emissions by up to 80% and promote ferry operations based on power from renewable energy sources.

“It’s about more than just technology – it’s about responsibility. As a ferry company operating daily in one of the world’s most sensitive waters, we have a special obligation to protect the marine environment we operate in,” said Scandlines chief operating officer Michael Guldmann Petersen.

On average, in just 12 minutes, the batteries in the ferries will be charged with at least 80% of the energy needed for a crossing. The refit includes installing advanced 5-MWh battery systems on each ferry; charging facilities for the ferries on board and at the Puttgarden and Rødby ferry berths; and renewable electricity as primary energy source during crossings.

Scandlines has signed a contract with Western Shiprepair in Lithuania for the conversion. The first ferry will start its conversion at the end of August and the second ferry in December. The work is expected to be completed in early 2026.

This initiative is an important milestone towards the goal of operating the Puttgarden-Rødby route without direct emissions by 2030. It is also part of Scandlines’ overall ambition to become a direct emissions-free company by 2040, in line with the Paris Agreement climate goals.

The German Ministry of Transport has awarded the project financial support as part of a funding programme aimed at promoting the sustainable modernisation of coastal vessels to reduce emissions. The programme covers up to 40% of the conversion expenses.

Between 2013 and 2024, Scandlines has invested €380M (US$434) in technologies to reduce emissions such as new hybrid ferries for the Rostock-Gedser route; rotor sails and new centre propeller blades for the Rostock-Gedser ferries; new highly efficient and low-noise thrusters for the Puttgarden-Rødby ferries; and algae-repellent silicone paint, which saves energy compared with conventional types of bottom paint.

With the electrification of the Fehmarn Belt ferries, Scandlines emphasises its role as a protector of the Baltic region.

“We are delighted to have signed a contract with Western Shiprepair, one of BLRT Repair Yards, which has been awarded the conversion project after an extensive and lengthy tender process. By electrifying two of our Fehmarn Belt ferries, we are moving much closer to our goal of making the route direct emissions-free by 2030. This is what our customers want, and it will significantly strengthen our competitiveness," said Mr Petersen.