TT-Line has confirmed the order of a second battery-hybrid LNG ferry — a sister vessel to its first Green Ship 2.0 newbuild announced in late 2025 — as the German operator continues its fleet renewal programme on the Baltic Sea.

Both vessels will be constructed by China Merchants Jinling Shipyard in Nanjing, China, with the first vessel expected to enter service before the summer of 2030.

The two ferries, designed by OSK Design of Denmark with interiors by Germany’s Ocean Architects, will each have a freight capacity of 5,400 lane metres and accommodate up to 930 passengers, representing a capacity increase over TT-Line’s existing Green Ships Nils Holgersson and Peter Pan, which operate on routes between Sweden, Germany, Poland and Lithuania.

Each Green Ship 2.0 will be equipped with an LNG-hybrid propulsion system, including two LNG tanks of 500 cbm each, supported by a lithium iron phosphate (LFP) battery energy storage system with a capacity of between 5.5 MWh and 10 MWh. According to TT-Line, the battery system has been designed to enable fully electric propulsion and can be scaled further through dedicated battery rooms built into the vessel’s architecture. Both vessels will also feature upgraded shore power connections to support high-capacity battery charging during port calls.

TT-Line noted that the hybrid arrangement will allow for silent, emission-free operation during port stays and manoeuvring, with power-take-in and power-take-out technology used to manage energy consumption and peak load demands.

Bernhard Termühlen, CEO of TT-Line, stated: “The order of a second Green Ship 2.0 demonstrates TT-Line’s long-term commitment to provide efficient and state-of-the-art transport solutions in the Baltic Sea between Sweden, Germany, Poland and Lithuania.”

Andreas Schärli, COO of TT-Line, remarked: “By adding a second Green Ship 2.0, we are accelerating the transformation of our fleet. The combination of LNG propulsion, large-scale battery technology and advanced shore power capabilities provides the flexibility needed to meet both today’s and tomorrow’s environmental challenges. With expandable battery capacity, both vessels are designed for fully electric operation in the future.”