To ensure efficient energy management, BW LPG’s approach entails the utilisation of multiple onboard-energy monitoring systems, physical enhancements to the vessels, and continuous training and awareness for our onshore staff and crew.
BW LPG engages a third-party service provider to manage the energy and emissions performance for our vessels. The performance is benchmarked against industry best practices.
Through the implementation of these technologies and initiatives, we reduced our energy consumption and carbon emissions in 2020. As BW LPG progresses our emissions reduction journey, we commit to comply with the IMO target of 50% reduction of GHG emissions by 2050, and we will establish a progressive review of this target to align with our ambitious net-zero carbon target.
Our ship energy efficiency management plan (SEEMP) is supported by multiple monitoring systems onboard that enable real-time monitoring of our energy use and calibration of equipment to maximise efficiency onboard.
The Energy Efficiency Existing Ship Index (EEXI) will enter into force in 2023, and details are expected to be released in June 2021. In preparation, we are gathering data and establishing preliminary methods of EEXI determination to ensure full compliance with IMO regulations.
|1||The Human Element||
There is a dedicated team working on energy management and together with trained crew, they oversee all aspects of the vessel's voyage to ensure leading performance management
|2||LPG Propulsion Engine||
Our dual-fuel LPG propulsion engine allow LPG to be used as a marine fuel, improving output efficiencies by about 11% when compared with compliant fuels.
An on-board monitoring system which allows for the programming and planning of the vessel's voyage at optimum efficiency.
Sensors are installed on the vessel to capture live data on speed and consumption practices of key machinery, engines, navigational and cargo systems.
As the vessel progresses on its voyage, SmartShip continuously provides routing advice that is projected on top of the programmed plan to create a revised and optimally efficient voyage.
|4||Total Fuel Oil Consumption (TFOC) System||
The TFOC system was added in 2020 to our existing weather routing processes. Algorithms automatically and regularly calculate and calibrate equipment onboard to optimise vessel routing and speed under local sea and weather conditions.
We are replacing lights onboard with more efficient LED lights to reduce energy consumption.
Nine vessels have completed this upgrade, and the rest of fleet will follow during their scheduled dry-docks.
The CASPER system monitors and measures propeller resistance on a daily basis. This process assists in detecting the level of the ship's propeller resistance, which over time, results in an increase in the vessel's consumption due to increased drag.
|7||Fins on Propellers||
To address energy inefficiencies from propellers, propeller boss cap fins and Mewis ducts are installed in front of propellers as a pre-swirl device to generate more favourable wake conditions. This improves propeller inflow conditions and increases efficiency in propeller performance.
|8||Anti-Fouling Paint Technology||
Anti-fouling paint is applied on vessels to prevent fouling - the accumulation of bio-organism on the hull and propellers. This premium super slippery paint has a high resistance to fouling, and thus helps reduce resistance as vessels move through water, which translates to reduced energy consumption.
A vessel's trim is its floating position in length direction and has a significant impact on fuel use. We use leading fluid dynamic calculation software to determine optimal hydrodynamic performance in relation to current conditions at sea and speed of vessel, thereby reducing fuel consumption and emissions to air.