The Green List

Here you will find the big little things that we have done on our journey towards a sustainable future. Actually they are so many that they didn't fit on one page...

Click here to read the first 30 sustainable big little things

In 2018 all the cooling refrigerants in fridges and freezes on Stena Jutlandica were replaced with new, more energy efficient and climate friendly products. Just like the old ones, the new cooling refrigerants have zero ozone depletion potential. The big difference lies in the low global warming potential.

Early 2018 we passed certification for ISO 14001:2015, an international standard for environmental management systems and a tool for the company to improve in the sustainability field.

Early 2018 we equipped our first vessel, Stena Hollandica on the Hoek van Holland to Harwich, with ultrasonic transducers on the hull to minimize fouling.

We always strive to minimize our impact on marine life, for example by practising safe use of Eco-label detergents on board. We have courses in handling and dosing detergents, as well as using closed dosing systems, making the handling safer for our employees and simultaneously minimizing consumption. In 2018 we doubled the use of Eco-label detergents to 60 %, mainly by making it our new standard on the North Sea and Irish Sea.

In order to help preserve wildlife in the ocean we want to make sure all our seafood is caught responsibly. In 2017 the percentage of MSC certified fish served on board was 66 %, steadily nearing the long-term goal.

Stena Line’s Energy Saving Program (ESP) was launched in 2006 in line with our goal to reduce fuel consumption by 2,5 % per year. Eleven years later, as the main-engine regulators of Stena Scotia were replaced, project number 300 was completed, resulting in an expected annual fuel saving of 3 % on her sailings between the Netherlands and UK.

In the process of phasing out plastic food containers on board, we started pilot testing some different alternatives in 2017. One of them is bagasse, a biodegradable by-product from sugar production that when composted turns into soil in only eight weeks.

In 2017 we connected all light port vehicles digitally to be able to follow, analyze and plan their loading in a more efficient and energy saving way.

LED lights lower energy consumption by 5 %, have a life span of five years and are also easier to replace. Our vessels, terminals and ports are gradually moving over to such alternatives. In 2017 we changed more than 2,500 light bulbs in the corridors on board the four vessels that sails from Hoek van Holland.

In 2017 we started running all of our RoRo vessels on the Irish Sea on low-sulphur fuel, drastically lowering sulphur emissions for our entire fleet.

In 2017, Port of Trelleborg in southern Sweden was added to our list of onshore-power sharing ports. This allowed another two of our vessels to turn off their engines in favor of green electricity while in port, making a total of 13 Stena ships now connected to onshore power. It also helped us treduce carbon dioxide emissions by more than 12,300 tonnes in 2017.

We always aim to use greener and better ingredients in our restaurants and cafés. For example, 100 % of all milk served on board has been organic since 2016.

The percentage of green electricity consumed across our terminals is steadily on the rise. In 2018, as much as 92% came from renewable energy sources.

Finding the right balance between draught at the bow and the stern will affect the total draught hindering the vessel. By loading Stena Scandinavica to make its bow deeper than the stern, we manage to save up to 7 % fuel on the Gothenburg to Kiel route. 

Analyzing the Fuel Management System data of Stena Flavia on the Nynäshamn to Ventspils route led to several energy saving changes lowering the fuel consumption and emissions. One of them: a slight tilt of the propeller. Sometimes the smallest things really can make a big difference.

Following the successful pilot test on Stena Vision in 2012, close to our entire fleet has been equipped with the energy saving FMS upgrade. Late 2017, Stena Scotia sailing from The Netherlands to UK was our 28th vessel to be crossed off the list.

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