Singapore Launches First ABB-Powered Fully Electric Harbor Tug PXO-ACE-1

ABB-Powered Electric Tug Achieves Milestone

PaxOcean Group and ABB have reached a major milestone with the commissioning of PXO-ACE-1, Singapore’s first fully electric harbor tug. The vessel will enter service ahead of its expected April 2026 deployment. This achievement highlights ABB’

Advanced Propulsion System for Emission-Free Operations

The tug integrates ABB’s Onboard DC Grid™ with PEMS™ power and energy management system. This allows optimal use of the three-megawatt-hour battery, supporting variable power demands and instant high torque. Moreover, the modular system minimizes energy conversions, increasing drivetrain efficiency and extending operational range per charge.

Environmental and Crew Benefits

Battery-driven operation eliminates emissions and significantly reduces noise and vibrations compared to diesel tugs. Therefore, PXO-ACE-1 improves local air quality and creates a safer, healthier working environment for crew members, demonstrating practical benefits of industrial automation in maritime applications.

Seamless Integration with Control Systems

PXO-ACE-1’s electric propulsion system is integrated with PLC and DCS-based control systems, providing real-time monitoring, diagnostics, and predictive maintenance capabilities. In my experience, combining automation software with energy management ensures operational reliability and efficiency, especially in complex i

Strategic Role in Singapore’

The Maritime and Port Authority of Singapore mandates all new harbor craft to be fully electric or compatible with B100 biofuels by 2030. As the first of over 1,600 vessels, PXO-ACE-1 sets a precedent for future electrification, showing how industrial automation technologies support sustainable port operations.

Industry Implications and Expert Insight

Tugs are ideal for electrification due to their predictable operation patterns and proximity to charging infrastructure. From my perspective, this project demonstrates the transformative potential of integrating PLC, DCS, and energy management systems in maritime industrial automation. It also provides a blueprint for similar electrification projects across Asia.

Applications and Use Cases

PXO-ACE-1 is suitable for harbor maneuvering, berthing, and towing operations. Its modular design allows upgrades in propulsion and control systems. For operators, combining industrial automation with electric power not only improves efficiency but also reduces maintenance costs and environmental impact.