From cutting emissions and conserving water to managing energy consumption and reducing waste – at Stolt Tankers we approach environmental protection with creativity and commitment.

We have assessed the things that matter the most to our stakeholders and identified two environmental UN Sustainable Development Goals which we believe we make a positive contribution: climate action and life under water.

When it comes to reducing the impact of our operations on climate change, we are focusing on decarbonising, reducing greenhouse gas (CO2) and other harmful emissions and replacing fossil fuels with sustainable alternatives.

We also understand how important it is to protect our marine environment and we are improving the way our business operates to reduce the waste we generate, maintain zero spills overboard and protect the wider marine ecosystem.

Sustainability Goals

We have committed to achieving three key environmental objectives:

  • By 2030, reduce our carbon intensity by 50% relative to 2008
  • Operate at least one carbon neutral ship by 2030
  • Become a fully carbon-neutral business By 2050

We will achieve these by:

  • Improving efficiencies in our existing operations
  • Using advances in technology to develop new fuel-flexible ships leading to full decarbonisation
  • Investing in R&D to design new systems and better conserve energy

Reducing our environmental footprint

For ships in operation we focus first on running them as efficiently as possible. Hulls and propellers are monitored and cleaned to reduce fuel and emissions. Machinery is tuned and operated at its most efficient design point. Waste heat is reduced or recovered and electrical consumption is reduced. 

Our programme of active voyage management helps reduce overall fuel consumption by sailing the optimal route at the optimal speed and trim. Devices that improve hydrodynamics and reduce energy consumed are installed on many ships.

We are exploring several other methods of lowering fuel consumption. These include installing onboard flow meters for more accurate monitoring, installing devices that harness the power of the wind, and optimising hull forms and propulsion plants for new buildings.

Our emission reduction efforts are widely recognised. During 2020, 102 of our ships that called at US ports were awarded the CSA Certificate of Environmental Achievement. In addition, 45 ships that called at US ports during the past three years became eligible for the US Coast Guard’s QUAL21SHIP certification. This programme recognises the best-run ships, with vessels audited at least once a year. Membership is testament to the quality of the Stolt fleet – less than 20% of all foreign-flagged vessels operating in the US meet the strict eligibility requirements.

Investing today, for tomorrow

Our focus on continuous improvement means that we actively follow new developments in the industry and we are already working on several pioneering projects to cut emissions and promote decarbonisation, including:

  • We are a partner in the HySHIP project, which is designing a ship powered by liquid hydrogen.
  • We are participating in HAZID, a consortium of maritime experts examining what is needed to make ammonia a viable future fuel.
  • We are also using our expertise and strong industry relationships to explore the potential for biofuels and LNG.
  • We are strategic partners to the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping, supporting research towards decarbonised industry.

Our ships frequently serve as test beds for new equipment and systems and we encourage our people to challenge existing procedures. Through this process of ongoing innovation we ensure that Stolt Tankers remains at the forefront of sustainability in the maritime industry.

External accreditation

Our environmental approach is underpinned by strong governance frameworks and processes. We constantly review our systems to ensure they meet the needs of evolving regulations and we are proud to say we are 100% compliant with applicable regulations and certifications. We hold the internationally recognised ISO 14001 standard for environmental management and were awarded a silver rating by Ecovadis in 2019. When it comes to emission intensity reporting, data for the IMO and the EU is independently verified by Lloyd’s Register. You can read our environmental policy here.

Responsible ship recycling

When it comes to ship recycling, Stolt Tankers and its preferred recycling yards operate in accordance with the International Maritime Organization’s (IMO’s) 2009 Hong Kong Convention for the Safe and Environmentally Sound Recycling of Ships.

All ships delivered for recycling hold an inventory of hazardous materials, certified by accredited auditing body DNV GL, and verifying that the vessel has been properly prepared. During recycling we maintain one to three surveyors onsite at the yard, to monitor the process first-hand from start to finish.

Stolt Tankers is a founding member of the SRTI (www.shiprecyclingtransparency.org), a ‘one-stop-shop’ for publishing information on ship recycling against a set of predefined disclosure criteria. This online platform has been jointly developed by key industry stakeholders to encourage shipowners to share their ship recycling policies. It offers stakeholders access to information on different companies’ approaches, enabling them to make informed decisions when choosing their shipping partners.