Green Lane – low-carbon sea transport
Green Lane sea transportation service combines sustainability with efficient carriage of freight.

Two low-carbon shipment options
Both solutions, electricity and biodiesel, are designed to significantly reduce emissions — for example using biodiesel can reduce carbon dioxide emissions by up to 700 kg per trailer on the Hanko-Gdynia route. Green lane helps you meet strict environmental regulations and reach your energy-saving goals with confidence.
First Green Lane, fully electric shipments, represents the cleanest option currently available in sea transport. This service will be offered on the high-frequency Naantali–Kapellskär route, operated by our newest hybrid ro-pax vessels, Finnsirius and Finncanopus. Greenhouse gas emissions from maritime transport will be reduced by 100%.
The second Green Lane option utilises biodiesel produced from renewable energy sources. This service will be available across Finnlines entire network.
The ships’ 5 MWh batteries are charged with onshore power while at berth, enabling carbon neutral sea transportation for a defined number of freight units by replacing fossil fuels with electricity.
When you select the biodiesel option, we commit to consuming a volume of biodiesel equivalent to the energy required for your transport. Compared to traditional fossil fuels, this solution can reduce greenhouse gas emissions throughout the fuel’s life cycle by up to 90%.
Bunker surcharge, ETS FEUM charge, and biodiesel/electricity charge are applied as separate charges. These Green Lane surcharges are updated quarterly like ETS FEUM charge.
We look forward to supporting your sustainability goals and helping you make the transition to more energy-efficient freight solutions.
Green Lane surcharges
as from 1 October 2025
Electricity
- Electricity surcharge Naantali – Kapellskär EUR 4.00/m
Biodiesel
- Biodiesel surcharge Naantali – Kapellskär EUR 3.00/m
- Biodiesel surcharge Långnäs – Naantali / Kapellskär EUR 1.50/m
- Biodiesel surcharge Malmö – Travemünde EUR 3.50/m
- Biodiesel surcharge Malmö – Świnoujście EUR 3.50/m
- Biodiesel surcharge Hanko – Gdynia EUR 8.00/m
for more information.
Finnlines Green Lane Service – Q&A
Today, many companies have set ambitious targets to reduce their carbon emissions. Achieving these goals requires not only lowering emissions from their own operations (known as Scope 1 and 2 emissions) but also addressing emissions generated by related activities, such as transport and logistics (Scope 3 emissions).
By choosing low emission transport solutions like Finnlines’ Green Lane, companies can effectively reduce their Scope 3 emissions and offer more sustainable products and services to their own customers.
As of April 2025, several Finnlines vessels have started using biodiesel alongside conventional fossil fuels and Finnsirius and Finncanopus have been operating partially on battery power since their launch. As there are basically no limits for using biodiesel to replace fossil fuels, the use of battery electricity is naturally limited by battery capacity, which also restricts the overall availability of the electric Green Lane service.
When a customer selects the Green Lane service, Finnlines commits to replacing the amount of fossil fuel needed to carry the customer’s cargo with an equivalent amount of sustainable fuel, providing the same amount of energy. The alternative fuel will be used on one of our vessels during the same calendar year as the transport, though not necessarily on the same trip or vessel.
We currently use FAME (Fatty Acid Methyl Ester), a biodiesel made from waste fats like used cooking oil. The fuel is ISCC certified under EU sustainability standards and each batch comes with a Proof of Sustainability certificate. We may also use certified HVO (Hydrotreated Vegetable Oil), another renewable diesel produced from waste-based fats.
Biodiesel: Used directly in place of fossil diesel or heavy fuel oil in ship engines. Can be used on any of our vessel.
Electricity: Used on our hybrid vessels, Finnsirius and Finncanopus. The vessels’ 5 MWh batteries are charged from shore power while the vessel is in port, and the stored energy is used to power onboard systems at sea, thereby reducing fossil fuel consumption.
Burning biodiesel releases CO₂ because it contains carbon. However, that carbon originally came from the atmosphere when plants absorbed it. So, when it’s released again, it doesn’t add new carbon to the system—unlike fossil fuels, which release carbon stored underground for millions of years. Proof of Sustainability, which is issued to every fuel batch, details the fuel’s whole lifecycle emissions. These emissions can be up to 90% lower than those from fossil fuels.
The Green Lane services are annually externally verified. Verification ensures that the required amount of biofuel or electricity is used for Green Lane services. Verification is based on the following regulations and standards: EU MRV, FuelEU Maritime, ISO14064 and EN 16258:2012.
Fuel use, travel distances, and cargo loads are reported annually to the European Commission under the EU MRV regulation and verified by a third party. From this verified data, we calculate average fuel consumption per cargo ton per leg. Emission reductions from alternative fuels are calculated using the FuelEU Maritime regulation’s “well-to-wake” methodology, which includes the full lifecycle from production to usage.
Each ship logs its fuel and electricity use after every leg and port call. This data is constantly updated. At the same time, all Green Lane bookings are tracked. We compare the amount of biofuel or electricity used with the fuel needed for the booked Green Lane services to ensure they match.