On March 29, 2026, Avenir LNG completed the first ship-to-ship LNG bunkering for a ferry in Klaipėda, Lithuania, servicing TT-Line’s Peter Pan. This milestone expands Avenir’s Baltic supply network and solidifies the port’s role as a vital hub for alternative marine fuels and regional decarbonization.
Klaipeda, Lithuania | April 8, 2026 – In a significant leap for the Baltic maritime energy landscape, Avenir LNG has successfully completed the first ship-to-ship (STS) liquefied natural gas (LNG) bunkering operation for a ferry in the Port of Klaipėda.
The operation, which took place on March 29, 2026, saw the 7,500 m3 bunker vessel Avenir Ascension deliver fuel to the RoPax ferry Peter Pan. The vessel is owned and operated by TT-Line, a central figure in the Baltic’s transition toward lower-emission propulsion.
Expanding a Strategic Partnership
While Avenir has established a robust track record in Lithuania, conducting over 50 LNG bunkering and transport operations in Klaipėda in recent years, this specific maneuver marks a pivot toward high-frequency passenger vessel support.
For several years, Avenir has been the primary energy partner for TT-Line, fueling their fleet across major hubs in Sweden and Germany. By extending this logistical chain to Lithuania, the partners are effectively creating a “green corridor” that spans the southern and eastern Baltic Sea.
“Expanding our collaboration to Klaipėda marks an important next step, strengthening security of supply for alternative marine fuels in the Baltic region,” the company stated.
Technical Profile: The Vessels Involved
The operation utilized Avenir’s specialized infrastructure to service one of the most modern ferries in the region:
| Vessel | Role | Specifications / Notes |
| Avenir Ascension | Bunkering Vessel | A highly maneuverable 7,500 m3 vessel designed for coastal STS operations. |
| Peter Pan | Receiving Vessel | A “Green Ship” RoPax ferry equipped with dual-fuel engines capable of running on LNG and bioLNG. |
Bolstering Baltic Energy Security
The successful bunkering of the Peter Pan is more than a routine refueling; it represents a maturation of the Lithuanian maritime sector. As environmental regulations tighten under the IMO and EU’s “Fit for 55” framework, the ability to provide reliable STS LNG services in Klaipėda reduces the “bunker-call” detour time for operators, making the port a more competitive destination for dual-fuel tonnage.
Furthermore, the partnership highlights the bridge toward bioLNG. TT-Line has already integrated bio-methane into its fuel mix, and the infrastructure utilized in Klaipėda is fully compatible with these drop-in carbon-neutral alternatives.
A Legacy of Safety in Klaipėda
Avenir’s presence in Lithuania has grown steadily. By leveraging the Klaipėda LNG reload station, the company has transformed the port into a regional hub. This latest milestone builds upon a foundation of over 50 safe operations, proving that the technical complexity of STS transfers for passenger-heavy RoPax vessels can be executed with world-class precision.
As the industry looks toward 2030, the synergy between Avenir’s delivery capabilities and TT-Line’s commitment to alternative fuels serves as a blueprint for the decarbonization of European short-sea shipping.
About TT-Line
TT-Line, the market leader in ferry transport between Germany and southern Sweden, With nine modern ferries and up to 18 departures daily, the company links the German Baltic ports of Travemünde and Rostock, the Polish port of Świnoujście, and Klaipėda in Lithuania with the Swedish hub of Trelleborg.
Since 1962, TT-Line has transported millions of passengers and freight units, currently handling approximately 1 million passengers, 250,000 cars, and 500,000 freight units annually. The company remains a leader in environmentally responsible ferry transport and continues to expand its Green Ship fleet to meet future sustainability goals.
Avenir LNG
Avenir LNG, is a leading independent owner and operator of small-scale LNG carriers and LNG bunkering vessels. Founded in 2017, the company has rapidly become a linchpin in the global energy transition by providing safe, reliable, and flexible LNG logistics solutions.
Avenir operates one of the world’s largest fleets of LNG bunker vessels, specifically designed to support the maritime industry’s shift toward LNG and Bio-LNG. Beyond marine fuels, the company serves industrial customers through specialized small-scale distribution networks. By combining technical expertise with operational excellence, Avenir focuses on delivering efficient, lower-emission energy solutions that facilitate the transition away from traditional heavy fuel oils.
Source: Avenir LNG | TT-Line