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Affordable and clean energy
  • No negative impact on climate
  • No harm to the oceans
  • Full responsibility in supply chain and CSR
  • Safe, healthy, diverse and gender equal workforce
  • Responsible offers to our customers
Our ambitions:
  • No negative impact on climate
  • No harm to the oceans
  • Full responsibility in supply chain and CSR
  • Safe, healthy, diverse and gender equal workforce
  • Responsible offers to our customers
Home / Affordable and clean energy

Our vision is connecting Europe for a sustainable future, and we have a clear roadmap for how to get there. As a first milestone we have ambitious targets for 2030: to reduce the CO2 emissions from our vessels by 30% and to launch our first vessel without CO2 emissions.

With the economy picking up pace as we emerge from the pandemic, 2021 inevitably saw an increase in our CO2 emissions. But despite this, there has still been an overall reduction in emissions since 2019.

On top of that, in 2021 our vessels moved more cargo, meaning higher efficiency and a reduction in our carbon footprint. We have also reduced the pollutants we emit, as we switched to low-sulphur fuel across our Irish Sea fleet. We also reached 100% renewable electricity in our onshore operations, where renewable sources were available. Where they were not, we bought green credits to compensate.

  • Reduce CO2 emissions per tonne-nautical mile by 2.5%/year, and total CO2 emissions from vessels by 30% in 2030 (compared with 2019).
  • 100% renewable electricity in shore operations.
  • Increasing trend in shore power connections.
  • Punctuality across the fleet: a minimum of 67% of the trips according to timetable (+/-5 mins).

Chart

  • Approximately same CO2 emissions per nautical mile as 2019 levels, but 11% less emissions per tonne-nautical mile compared with pre-COVID (2019), partly due to more efficient utilisation of vessels’ cargo capacity (more cargo on each trip).
  • Our total CO2 emissions increased by 10% compared with 2020, but still 4% less compared with 2019 mostly due to a partial rebound in the number of voyages.
  • 100% renewable electricity used in our shore operation, by purchasing green credits for three of our ports.
  • About 20% of all terminals now offer shore power connections to our vessels.
  • Our punctuality remained short of our goal, achieving 61% in 2021 according to timetable (+/-5 mins). The main factors that impact punctuality are boarding delays, vessel performance and weather conditions at sea. We are continually working to identify and address specific causes at a local level so that we meet our scheduled departure times. Improved punctuality will result in reducing the number of occasions we need to accelerate and use additional fuel to catch up with scheduled arrival times.

100%

renewable electricity used in our shore operation, by purchasing green credits for three of our ports.

About 20%

of all terminals now offer shore power connections to our vessels.

Putting the E in efficiency with our new E-flexers

Three of our five new E-flexer vessels have now arrived: Stena Estrid, Stena Embla and Stena Edda. While they are brand-new vessels, they celebrate our Swedish heritage. The E names both mark their place in the E-flexer family, and take their origins from Norse mythology. Embla, for example, was the first female created by the gods, while Estrid means divinely beautiful.

“Designed for maximum efficiency, the three E-flexers include several emission-reducing technologies”

A streamlined hull with a unique shape that allows them to glide easily through the water.

Faster loading and offloading, which means less time in port and more time at sea to complete their journey, reducing the need to use more fuel for acceleration.

New propellers that use fixed-propulsion power; this keeps vessels at the right speed on less power. On top of that, one propeller is feathered to minimise resistance in the water.

Two engines instead of four, with an ability to run on just one propeller and engine, meaning lower fuel consumption.

Environmentally friendly anti-fouling paints that safely repel organisms like barnacles from ship hulls to help them run more efficiently. 10% barnacle coverage needs 36% extra power to keep the same speed. So keeping our vessels free of barnacles really can have an impact on our emissions.

A wonder-fuel solution to powering our vessels

Our work goes back to 2015, when Stena Germanica became the world’s first methanol-powered RoPax ferry. The next exciting step came last summer, when Germanica became the first major vessel to run on recycled methanol. Sourced from residual steel gases, we welcomed this collaboration with another of the world’s biggest CO2 producers.

And we didn’t stop there. October saw our collaboration with Proman, one of the world’s largest methanol producers, to retrofit another three methanol-ready tankers.

We are also looking at how we can move more towards using green methanol, by exploring more sustainable sources such as waste, biomass and renewable electricity.

The rejuvenating RoPax refits reducing our energy use

After years on the Irish Sea, our RoPax ferries Stena Lagan and Stena Mersey have welcomed an efficiency-boosting upgrade, change of name and change of scene.

The upgrade aims to make the vessels more efficient and reduce emissions, with features that include:

  • Lengthened size to increase capacity by 30%
  • New rudder engineering to improve propeller efficiency
  • Hybrid scrubbers to eliminate and regulate the pH of water discharge
  • Drive-through capabilities to make for faster loading and offloading, meaning more time at sea, less acceleration, and therefore less fuel needed

Affordable and clean energy stories

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Sustainability

AI assisted vessels

Stena Line is using artificial intelligence to support our captains and officers to save fuel.

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Our focus areas

Our commitment to sustainability is centred around five focus areas linked to the UN Global Goals which are directly related to our business.

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The green list

It’s very, very green and long. Each number represents an action we have done on our journey towards a sustainable future. We are talking about the Green List!

Read more

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