Singapore’s first fully electric harbour tug, PXO-ACE-1, has completed commissioning ahead of its planned deployment in April 2026.
Built by PaxOcean Group and powered by ABB, the 50-ton bollard pull vessel features an integrated electric propulsion system designed for emission-free harbour operations.

The tug is part of Singapore’s strategy to electrify its fleet of over 1,600 harbour craft, in line with Maritime and Port Authority regulations requiring new vessels to be fully electric or compatible with B100 biofuels or net-zero fuels by 2030.
Tan Thai Yong, Managing Director and Chief Executive Officer, PaxOcean Group said:Developing Singapore’s first fully electric tug is a significant achievement and an important step in advancing maritime decarbonisation. ABB has supported us as the systems integrator on this project, contributing their experience in battery-powered vessels to the integration of the power, propulsion, and bridge systems on board this e-tug – a first of its kind. The operational integrity, safety, and performance of this vessel depend on reliable systems and effective integration, and ABB has delivered on both. We look forward to seeing PXO-ACE-1 in operation.
Battery-powered operation reduces noise and vibrations compared with diesel tugs, providing a quieter working environment for crew members.
The tug’s energy management system optimises the use of its three-megawatt-hour battery pack, allowing it to meet varying power demands, including instant high torque, while extending operational range per charge.
Olli Tuunainen, Local Business Line Manager, Singapore, ABB’s Marine & Ports division said:We are proud to be part of this groundbreaking project for Singapore, supporting the world’s maritime capital in its journey towards fully electric harbor operations. Tugs are among the industry’s leading candidates for full electrification given their operational profile, relative proximity to charging infrastructure, and the operational benefits they derive from an electric drivetrain, including instant power and enhanced crew comfort. We believe that this project will provide a blueprint for further electrification in Singapore and throughout Asia.
