Stena Lines is expanding the use of artificial intelligence (AI) technology to predict the most fuel-efficient way to operate a vessel after a successful pilot study reduced fuel consumption by two to three percent. The ferry company has set a target to lower the fuel consumption and CO2 emissions by 2.5 percent annually. Fuel is one of the company's largest costs - around 20 percent of total costs. In 2018, Stena Line started a pilot project onboard the Stena Scandinavica on the Gothenburg – Kiel route using AI technology to predict the most fuel-efficient way to operate a vessel. The software, named Stena Fuel Pilot, will be installed on five more Stena Line vessels during the autumn.