> Sustainability is a core element of our business. We have done a lot to ensure sustainability and worked hard to reduce our environmental effects. In the future, maritime decarbonisation will bring big changes into our operations and fleet. At the same time, we think small actions can make a big difference on climate change.

Green News: Finnsirius and Finncanopus deliver great achievements in energy efficiency

Modern vessels demonstrate a significant reduction in fuel consumption and emissions on the Finland–Sweden route.

Finnlines’ newest vessels, Finnsirius and Finncanopus, have officially delivered on their promise of next-generation energy efficiency, marking a milestone in sustainable maritime transport on the Naantali–Långnäs–Kapellskär route.

Finnsirius, which entered service in autumn 2023, and her sister ship Finncanopus, which followed in winter 2024, were meticulously designed with energy-saving technologies and optimised structural features aimed at reducing fuel consumption and greenhouse gas emissions. According to the latest data from 2024, these vessels have not only met but exceeded expectations.

In a direct year-on-year comparison, the new vessels showed a 22% improvement in fuel consumption per nautical mile in Finland–Sweden traffic, compared to their predecessors Finnswan and Europalink operating on the route in 2023. Even more notably, the average CO₂-equivalent emissions per transport work in the route reduced by 23% per cargo ton and by 29% per passenger.

Emissions performance is not only about technology – human actions matter, too.

Human factor enables operational excellence

While the ships are equipped with advanced energy-saving technologies, operational optimisation has played a vital role in achieving these results. The complexity of the systems on board has required a steep learning curve. Finnsirius alone improved its fuel efficiency by 8.5% between 2023 and 2024 while operating on the same route. This demonstrates that while modern vessels provide a strong foundation for sustainability, the human factor – how the vessel is operated – has a significant influence on emissions performance.

Benchmarks in energy efficiency

Finnsirius and Finncanopus now stand as benchmark examples in energy-efficient ship design and operation. Their successful performance supports Finnlines’ broader strategy for decarbonising sea transport and aligns with international efforts to reduce emissions in the shipping industry. As these vessels continue to operate in Finland–Sweden traffic, they are not only reducing environmental impact but also setting a new standard for sustainable maritime logistics in the Baltic Sea.