Sustainability and Waste Reduction Drive ABB’s LNG Fleet Modernisation for CoolCo

ABB has successfully modernised propulsion systems across nine LNG carriers owned by CoolCo, reinforcing a strong focus on sustainability and waste reduction while significantly improving fleet reliability.

The upgrade involved enhancing frequency converters within the vessels’ propulsion drives, extending their operational lifespan by more than a decade. Crucially, the work was carried out with minimal disruption, reducing dry dock time and ensuring continued operational efficiency.

Rather than replacing entire systems, ABB adopted a resource-efficient approach by retaining existing infrastructure and upgrading only essential electronic and control components.

This strategy not only maximised value but also reduced raw material usage and preserved embedded carbon—highlighting a practical model of circular economy in action.

CoolCo, a Norway-headquartered LNG transportation provider, operates nine dual-fuel diesel-electric vessels built in 2015. These ships are powered by ABB’s integrated propulsion systems, including generators, transformers, switchboards and ACS6000 frequency converters.

The modernisation introduced ABB’s next-generation Universal Control Unit (UCU), delivering improved computational performance alongside enhanced maintenance and troubleshooting capabilities.

The initiative aligns closely with CoolCo’s commitment to safe, reliable and environmentally responsible LNG transport. By boosting system resilience and reducing environmental footprint, the upgrade supports long-term sustainability goals while maintaining high service standards.

From an operational standpoint, the modernisation improves fleet availability and reduces downtime—critical factors in global LNG transportation. ABB also coordinated the upgrades alongside scheduled maintenance at a shipyard in China, ensuring efficiency and seamless execution.

Importantly, the project demonstrates how lifecycle management can play a central role in reducing industrial waste. By extending product life instead of replacing entire systems, companies can significantly cut emissions and material consumption while improving performance.

With extended warranties and continued technical support, CoolCo’s LNG fleet is now better equipped for reliable, long-term operations. The collaboration stands as a strong example of how sustainability-driven innovation can deliver both environmental and business benefits in the maritime sector.