Sweden's Stena Line is testing an artificial intelligence (AI) system to predict the most fuel-efficient operation for specific routes.
The move is a central part of its efforts to reduce bunker consumption and minimise environmental impact, it said.
The pilot study is taking place with the help of Japanese technology company Hitachi.
A model is being developed for the 58,000-gt ro-pax Stena Scandinavica (built 2003) to support the captain and officers on fuel consumption choices between Gothenburg and Kiel.
