Corvus Energy has announced that the battery energy storage system that powers what the supplier describes as the world’s largest battery electric ferry has been delivered, installed, commissioned and brought into commercial operation in South America, sources indicated on 29 October 2026.
The company said the marine battery energy storage system, referred to as an ESS, was successfully integrated aboard the ferry and completed commissioning work before entering service. Corvus described the installation as powering the largest battery electric ferry, signalling a substantial battery capacity applied to a ro-pax ferry operation.
The vessel is named China Zorrilla. Built by Incat Tasmania for operator Buquebus, the ferry has arrived in Argentina and has been undergoing final testing as part of the handover and commissioning period, according to the report.
System delivery and commissioning
Corvus Energy said the ESS was delivered to the shipyard, installed aboard the vessel and then commissioned. The company’s announcement framed those steps as a completed programme of work culminating in commercial operation on a South American ferry route.
The supplier’s statement noted that the ESS was part of the propulsion and power system for the vessel. No additional technical specifications, quantities or configuration details were provided in the published summary.
Vessel completion and positioning
China Zorrilla was built by Incat Tasmania for Buquebus and has now reached Argentine waters, where final tests have been carried out. The report indicates these tests formed the last stage before the operator moved the vessel into commercial use.
Sources published the item on 29 October 2026, summarising Corvus Energy’s announcement and the status of the ferry in Argentina.
The announcement positions the installation as notable for scale. The supplier’s description of the installation and the vessel highlights a growing application of large-scale battery systems in the passenger ferry sector, particularly for short to medium-distance routes where full battery propulsion is operationally attractive.
Corvus Energy, Incat Tasmania and Buquebus are identified in the report as the principal company names associated with the project. Corvus provided the ESS, Incat Tasmania acted as the builder and Buquebus is the vessel operator for whom the ferry was constructed.
The report does not include further operational timetables, route names, precise port calls or detailed technical parameters for the battery system. It notes only that the vessel had arrived in Argentina and that commissioning and final testing had been performed prior to entry into commercial operation.
The announcement, as summarised by reports, reflects continued industry interest in battery-electric propulsion for ferries and the development of larger onboard energy storage installations to support that shift. The companies involved have completed the immediate delivery and commissioning phases; the report indicates the vessel is now in commercial use in South America following testing in Argentine waters.