The energy transition in the ferry sector takes a decisive step in the Baltic Sea. TT Line, one of northern Europe’s leading shipping companies, has announced that it will use liquefied biogas (bio-LNG) on its ferries. This news represents a turning point for the entire Baltic area, where the issue of sustainability is now central.
With more than 60 years in business and a strategic route network between Sweden, Germany and Lithuania, TT Line once again demonstrates its willingness to innovate and anticipate the needs of contemporary shipping. In this in-depth look in detail at what the “green” project involves , how bio-LNG works, what benefits it brings to passengers, and what routes the company is operating in 2025- 2026.
The news: TT Line will use biogas on its ferries
TT Line has partnered to procure bio-LNG, which will become a fuel used on some ships in its fleet. Bio-LNG is a renewable fuel made from agricultural waste, organic waste and anaerobic digestion processes. Once purified and liquefied, it can be used in marine engines instead of fossil LNG.
Why is this important news?
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Drastically reduces environmental impact, with significant cuts to the CO₂ emitted into the atmosphere.
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It allows companies to get ahead of European regulations in the FuelEU Maritime package, which imposes stringent emission reduction targets.
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It makes TT Line routes between Sweden, Germany and Lithuania among the most sustainable in Northern Europe.
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It contributes to the creation of a European biogas supply chain, strengthening the circular economy.
TT Line has been working for years to make its ferry fleet more efficient, but the use of biogas is a very concrete step toward decarbonization, no longer just theoretical but implemented in practice.
What changes for passengers: greener ferries without sacrificing comfort
For those traveling aboard TT Line ferries between Sweden, Germany and Lithuania, the news translates into immediate benefits:
1. Greener ferries
The use of bio-LNG decreases not only CO₂ but also particulate matter and nitrogen oxides, making the marine environment and port areas cleaner.
2. No difference in comfort
The biogas in no way changes the experience on board TT Line ferries: the sailing speed, stability and services remain the same.
3. Verifiable commitment
By checking biogas certifications, passengers can verify (and choose) an operator that invests in real sustainability, not just advertising.
The TT Line shipping company: over 60 years of sailing the Baltic Sea
The operator TT Line was founded in 1962 with the aim of connecting Sweden to Germany through stable routes and reliable ferries. Today the company operates in the Baltic Sea with Ro-Pax ferries, capable of carrying:
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passengers,
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cars and motorcycles,
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RV,
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trucks and commercial vehicles.
The TT Line ferry fleet is modern, partially renovated in recent years, and equipped with services for both families and business travelers.
TT Line routes: ferries between Sweden, Germany and Lithuania
The TT Line network is among the most important in the Baltics. Here are all the routes, divided by area.
1. Ferries between Sweden and Germany
These are the historical and busiest routes:
Ideal for both car travelers to Scandinavia and business travelers.
2. Ferries between Sweden and Lithuania
These routes are also widely used in the summer periods by those who want to visit Lithuania by car or RV.
3. Germany – Lithuania routes
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Travemünde – Klaipeda
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Klaipeda – Travemünde
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Rostock – Klaipeda
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Klaipeda – Rostock
These are strategic freight routes and also increasingly popular with “on-the-road” tourism between Germany and the Baltic.
On board TT Line ferries: cabins, services and amenities
Cabins
Depending on the ship and time you can choose from:
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interior cabins,
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Outdoor cabins with a sea view,
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family booths,
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deluxe cabins and suites,
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pet-friendly cabins.
Catering
Ferries offer self-service restaurants, bars, and lounge areas. The longer crossings (to Klaipeda) have fuller menus and larger spaces.
Relaxation and entertainment areas
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children’s play areas,
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wifi on board,
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Duty free stores on some routes.
Vehicles
TT Line accepts without any problems:
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Cars, motorcycles, RVs, vans, bikes,
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commercial vehicles, trucks and trailers.
Electric cars
Some TT Line ferries have EV charging stations, a particularly useful service for those traveling in Scandinavia, one of the most advanced areas in Europe for electric mobility.
Tips for travelers to the Baltic Sea (Sweden, Germany and Lithuania)
Choose the most convenient departure
Routes to Travemünde e Rostock have both day and night schedules, while those to Klaipeda often have evening departures.
Book early
In July and August, demand is very high. Pet-friendly cabins also need to be sold out well in advance.
Check-in
It is recommended to arrive:
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90 minutes earlier if traveling by car,
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60 minutes earlier if traveling on foot.
Traveling with animals
TT Line allows pets, but only in dedicated cabins or specific areas of the ship.
Reduced mobility
Accessible cabins are available; contact the company in advance to ensure boarding assistance.
TT Line and the future of ferries in the Baltic between Sweden, Germany and Lithuania
The introduction of bio-LNG is not simply a technological “upgrade.” It is a strategic choice that:
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makes theTT Line operator a role model for sustainable navigation,
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fits in with more advanced European policies,
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responds to the growing demand for environmentally friendly ferries.
For passengers, this means choosing a ferry that not only offers comfort and safety, but also actively contributes to the protection of the Baltic Sea.
Book ferries to Sweden, Germany and Lithuania with Ferryfinder
TT Line is leading the Baltic green revolution: discover routes, schedules and promotions now on our ferry search engine ferryfinder.com
If you’re planning a trip to the Baltics-whether by car, motorcycle, or motorhome-TT Line routes are now one of the best choices for those seeking reliability, comfort, and environmental care. With the introduction of bio-LNG, the company ranks among the most innovative in the industry, offering travelers the opportunity to move between Sweden, Germany and Lithuania in a more sustainable way, without sacrificing service quality.
- Are you interested in ferry travel in the Baltic Sea? Also read our article On the Swedish flying ferry Candela P 12


