DNV has released a recommended practice (RP) that establishes a standardized framework for measuring and verifying the performance of onboard carbon capture and storage (OCCS) systems on ships. This initiative aims to advance onboard carbon solutions and technologies as around 90% of the maritime fleet still relies on fossil fuels. OCCS is increasingly viewed as a practical option for vessels that face challenges transitioning to low-GHG fuels. The International Maritime Organization (IMO) is also working on OCCS guidelines, with completion expected by 2028.
Cristina Saenz de Santa Maria, CEO of Maritime at DNV, highlighted the significance of OCCS for the existing fleet, noting that many vessels will remain operational for years. DNV’s Maritime Forecast to 2050 suggests that developing CO2 offloading infrastructure at just 20 major ports could cut global fleet CO2 emissions by 9%. The RP aims to provide the industry with a unified technical language to support the advancement of onboard carbon capture technologies.
The DNV-RP-0698 outlines performance metrics based on mass balance principles, including capture rate, CO2 quantities, atmospheric emissions, and gross capture efficiency. The framework is technology-neutral, accommodating various methods such as pre-combustion and oxy-fuel, and includes a structured third-party verification process for system documentation and performance evaluation.
