Reducing our Environmental Footprint

To ensure we live up to our vision and mission, we must continue to deliver the energy the world needs today while working on solutions for the future. We are doing this through a dual focus on reducing the environmental impact of our current business, and investing in renewable technologies that support a circular and sustainable economy.

We have decreased average emissions per vessel across our businesses. We are on track to meet the IMO’s environmental goal of a 40% reduction in carbon intensity by 2030 and a 50% reduction in total annual GHG emissions by 2050, compared to 2008 levels.

Hafnia, for instance, achieved a carbon intensity was 5.70 grams/ton nautical mile (T NM)in 2020, 5.6% below the present IMO baseline. This progress is in line with our goal of reaching IMO 2030’s target of 4.47 grams/T NM by 2028. Standard vessel optimisation efforts will be supplemented with additional initiatives such as intermittent dry dockings and opportunistic fleet renewals to reach our goal.

Retrofitting Existing Assets

BW LPG, the world’s largest owner and operator of Very Large Gas Carriers (VLGCs), has committed 15 of its VLGCs for retrofitting with LPG dual-fuel propulsion engines. The new engines are the result of the team’s collaboration with key engine manufacturers to use LPG, a cleaner-burning fuel, for propulsion. With an investment of over USD 100 million, these LPG dual-fuel engines will reduce the emission of Sulfur Oxide (↓97%), Particulate Matter (↓90%), Carbon Dioxide (↓25%), and Nitrous Oxide (↓20%). It means that vessels powered by LPG will be in full compliance with current and future Sulfur Oxide (SO×) emission requirements, including for Emission Control Areas (ECAs) and Sulfur Emission Control Areas (SECAs). LPG propulsion also offers efficiency gains on many fronts. Output efficiencies will improve by about 11% with LPG when compared with compliant fuels.

In addition to significant improvement in total voyage fuel economics, other efficiencies include easy storage and faster refueling. Bunkering for the retrofitted vessels can be done with reduced spill risk, either directly at the load terminal or via ship-to-ship transfer from a smaller LPG carrier. The dual-fuel capability also provides fuel flexibility, which translates to full redundancy. Dual-fuel allows for uninterrupted operations and buffers fuel price fluctuations. While building new ships with LPG propulsion can be beneficial, retrofitting has a much lower carbon cost. The total emissions from retrofitting are about 2,000 tonnes of CO₂ compared to 70,000 tonnes for materials and the building process for a new vessel.

We are determined to ensure that we continue to be well positioned for the future – investing in cleaner energy and accelerating market transformation for the better, so that market-led changes will act as a force for good on a global scale.

Anders Onarheim, BW LPG CEO

Safeguarding the environment with technology

We are actively implementing digitalisation initiatives to reduce the environmental impact of our fleet.

Alpha Ori SMARTShip

Real-time reports from Alpha Ori, produced through intelligent analysis

We are partnering with Alpha Ori to optimise our vessels’ fuel efficiency, monitor our hull efficiency, and detect potential failures early using their SMARTShip system. Alpha Ori’s SMARTShip system contains a patented fuel-saving module that uses artificial intelligence (AI) and multiple variables (e.g. vessel speed, design data) to optimise the total fuel oil consumption (TFOC) over a voyage. By providing the commercial team and shipmaster with recommended speeds between waypoints in real-time, the fuel-saving module can reduce TFOC per voyage by 6% to 10%. The resulting decrease in emissions are also calculated and recorded by the module, allowing the Master to navigate through ECA zones with regulatory compliance.

Another feature of the SMARTShip system is the Automated Hull Performance Monitoring (AHPM) app, which constantly assesses vessels’ hull performance against benchmarks and historical data. Given a specific load and hull condition, users can check fuel consumption at various speeds and clean the hull based on the app’s recommendations.

SMARTShip also encompasses other machine learning and AI applications such as anomaly detection. Its AssetAI module detects potential failure early, prompting maintenance and preventing equipment breakdowns. Through
supporting each vessel’s reliable, safe, and cost-efficient operations, AssetAI maximises each vessels’ useful life.

As the sum of the above modules, SMARTShip allows us to consider new operational initiatives, assess their effectiveness, and ultimately make smarter decisions that reduce our CO₂ emissions and improve our efficiency.

Miros Wavex Technology

The Wavex system measures sea state from digitised sea clutter images provided by a marine X-band radar. The radar backscatter from the sea surface is modulated by gravity waves, giving wave-like patterns in the images.

Miros Wavex Technology delivers detailed, real-time data on waves, currents and accurate speed through water (STW), marking a step-change in vessel performance management. STW-measuring devices have until now been
unreliable. They cannot accurately predict the current at specific locations and times due to the multi-factorial and high-velocity nature of currents. Instead, speed-over-ground is typically used. This is despite the inadequacy of SOG in accounting for the complex movement of water.

Today, Miros Wavex technology has overcome these challenges. After testing on bulk carrier BW Rye for more than a year, BW Group has created a joint venture with Miros called “Miros Mocean” —aimed at promoting this technology
within the shipping industry. With accurate STW data, we can now make the right trade-offs between fuel and speed.