Eni, MSC Cruises Complete HVO Biofuel Test for Maritime Transport Maritime Activity Reports, Inc. May 12, 2026 MSC Opera (Credit: MSC) Enilive Biorefinery in Porto Marghera, Venice (Credit: Eni) Eni and MSC Cruises have completed a test of Enilive’s HVO biofuel in maritime transport, confirming the technical feasibility of using the renewable diesel in pure form to power cruise ship engines. The trial involved powering one of the engines on the cruise ship MSC Opera for about 2,000 hours using pure HVO without modifications to the engine, while performance and emissions data were monitored. The companies said the test demonstrated that HVO can be used immediately in marine engines validated for its use without requiring technological upgrades, while maintaining performance in line with conventional marine fuels. According to the companies, the test recorded lower nitrogen oxide emissions and particulate emissions, alongside a reduction in lifecycle greenhouse gas emissions of around 80% compared with traditional marine fuel. Technical performance and emissions data were assessed with support from Wärtsilä and independently validated by Bureau Veritas. “The trial with MSC has demonstrated how HVO diesel biofuel can contribute immediately to the decarbonization of maritime transport. It can be used in its pure form in marine engines validated for its use, allowing a reduction in climate-altering emissions - calculated along the entire supply chain - of between 65% and 90% compared to traditional marine fossil fuels.  "HVO is produced at Enilive’s biorefineries in Venice and Gela, mainly from waste feedstocks such as used cooking oils, animal fats, and residues from the agri-food industry. "The use of this fuel represents a viable solution for the decarbonization of maritime transport, contributing to compliance with the obligations set by the FuelEU Maritime regulation and reducing the emission-related costs,” said Stefano Ballista, Chief Executive Officer of Eni