Stena Stories

The First Methanol-Powered ferry

Stena Germanica is one of the world's largest ferries – a length of 240 metres and capacity for 300 cars and 1,300 passengers. Stena Germanica is also the world's first methanol-powered vessel.

Far Less Emissions
The methanol means that sulphur and particle emissions virtually disappear, while emissions of nitrogen oxides (NOx) are reduced by 60%. The transition to methanol is a major step in the right direction and could be followed by the introduction of bio-methanol or electro fuel.
The Heart of the System
The pump room is the heart of the high-pressure system that supplies the engine with methanol.
A Rigorouse Safety System
The nitrogen generator extracts nitrogen from the air, which is then pumped into the methanol tank. The inert gas system is part of the rigorous safety system that reduces the risk associated with handling methanol.
Reducing Environmental Impact
In addition, Stena Line is continuing its efforts to reduce the company's environmental impact. Stena Line has been successful in reducing its annual energy consumption by an average of 2.5% since 2005. The energy savings programme covers everything from optimising fan frequency and installing solar filters on cabin windows, to creating tools that help the crew to operate the ship as efficiently as possible.
Four Engines
Stena Germanica has four engines, with a total of 32,000 horsepower. One engine was converted in 2015 and the remaining three will be converted in the first half of 2016. The engines are rebuilt with a new high-pressure common rail system where methanol injection is electronically controlled in the fuel injector.
Methanol tank
The 500-cubic-metre methanol tank is located centrally in the ship's double bottom. The tank was previously used as a ballast tank. As methanol is more corrosive than fuel oil (MGO), the tank has anti-corrosive coating with zinc paint. A full tank of methanol is sufficient for two return trips between Gothenburg and Kiel.
The Bunker station
Stena Germanica has four engines, with a total of 32,000 horsepower. One engine was converted in 2015 and the remaining three will be converted in the first half of 2016. The engines are rebuilt with a new high-pressure common rail system where methanol injection is electronically controlled in the fuel injector.
Reduced Bunker Consumption
To further increase Stena Germanica's energy efficiency, the ship has been equipped with a bulb that reduces bunker consumption.