Corvus-powered ElectRA tug DINAMO IV advances battery-electric harbour operations
Sanmar Shipyards has completed sea trials for its 14th ElectRA Series tug, DINAMO IV, marking a significant milestone in its 50th anniversary year and strengthening its contribution to the decarbonisation of the global towage sector.
The ElectRA Series fully electric tug has been developed through Sanmar’s longstanding collaboration with Canadian naval architects Robert Allan Ltd., combining proven tug performance with next-generation electric propulsion technology tailored for port operations.
Powered by advanced battery systems from Corvus Energy, the tug is capable of delivering high bollard pull and operational efficiency while producing zero emissions at the point of use, supporting ports and operators in meeting increasingly stringent environmental targets.
The 14th fully electric tug, demonstrated exceptional performance during its recent trials. It boasts impressive technical specifications, measuring 25.40m in length with a breadth of 12.86m and a maximum draft of 5.40m. Engineered for heavy-duty performance without the environmental footprint, the vessel is equipped with a 1,808 kWh battery capacity. This power configuration allows the tug to achieve a bollard pull of 70 tonnes and reach a speed of 12.5 knots.
Since the series was unveiled in 2021, ElectRA tugs have been deployed across Europe, North America, and Latin America, frequently operating in ecologically sensitive waters. Current international operators include HaiSea Marine, SAAM Towage, Svitzer, Buksér og Berging and BOTAŞ.
The success of the series is underscored by industry recognition, including the ITS 2023 Tug of the Year award for HAISEA WAMIS and the recent shortlisting of SAAM TRAPANANDA for the 2026 award.
“We took a strategic decision to be at the forefront of this change and are working collaboratively to achieve a sustainable future,” said Rüçhan Çıvgın, Commercial Director of Sanmar Shipyards. “Right from the start, we knew these green credentials had to be achieved without any loss of power or performance. A great deal of effort has gone into ensuring that they match and, in many cases, outperform their conventional counterparts.”
With 14 vessels now completed and a 15th already under construction, Sanmar remains dedicated to meeting the maritime industry’s increasing demand for eco-friendly propulsion systems and innovative technological advances.
