Stena AB

Stena Teknik

Stena Teknik is a technical resource for Stena’s marine-related business areas. The broad and extensive knowledge of its employees enables the company to develop solutions that increase the competitiveness of our business areas.

Developing technology for efficiency and sustainability

During the year, Stena Teknik took the next step in the electrification of Stena Line’s ships. Stena Jutlandica is first to have batteries installed, which will drive the power-intensive bow thrusters. This will reduce noise and environmental impacts in port. At sea, the ship’s electricity will continue to be generated by diesel generators, with optimal operating mode. The investment has been possible thanks to support from the EU and the Swedish Transport Administration, and the project will be in operation from May 2018.


Construction of E-Flexer, Stena Line’s new series of RoPax vessels, is in progress in China. Already in the basic design stage, this type of vessel is significantly more efficient than existing vessels. Using advanced and optimised design, we have managed to further reduce fuel consumption. We have also taken into account a larger speed range and variation of load intake. At speeds under 18 knots, the ship can run on one propeller, with the other propeller feathered to reduce resistance. The hull has a unique shape with an optimal bulb, effectively designed openings for bow thrusters, a rudder that recovers losses from propellers and a stern that ­minimises wave making.


To increase safety on board, Stena Teknik has been running a fire safety project with Stena Line, Stena RoRo and Northern Marine during the year. Initially, the project was about eliminating the weak links that previously existed and establishing a new safety level that is higher than the level required under current legislation. On the operational side, the project aims to increase safety on board by producing an e-learning package for personnel. The emergency services have also been engaged in order to provide the crew with further training in fighting fires even more safely and effectively.

In its contacts with international organisations such as EMSA and IMO, Stena Teknik has noted keen interest in the safety project from them. In this way, Stena is contributing to a dissemination of knowledge and skills that leads to a cost-effective increase in safety. The project spreads operational best practice, not just within Stena but in the entire industry.

We are lower ­emissions.

Harry Robertsson

Technical Director, Stena Teknik

With its fellow Stena companies, Stena Teknik ­continues to develop technology for handling the Group’s vessels in a safe, environmentally friendly and efficient way. Our continuing initiatives include developing technical solutions to adapt Stena ­Drilling’s rigs and vessels and make them even more flexible and attractive.

In the coming years, much attention will be devoted to developing technology to reduce the impact of the Group’s ships on their environment. The installation of scrubbers will continue, which will allow exhaust gases to be cleaned from sulphur oxides but also from soot and particles. Work on electrification is being intensified and a decision on the next step will made by 2019 when the ships’ diesel engines can be replaced by electric power in coastal areas.


Cheaper batteries, more e-ferries

IMOIIMAX Performance Phase