Turkish shipbuilder Sanmar Shipyards has completed sea trials for its 14th fully electric tugboat, Dinamo IV, during the company’s 50th anniversary year.

The vessel is part of the ElectRA 2500SX series, developed through Sanmar’s partnership with Canadian naval architecture firm Robert Allan Ltd. The design uses battery technology supplied by Corvus Energy and is intended to deliver zero emissions at the point of use.

According to Sanmar, Dinamo IV has a length of 25.40 metres, a breadth of 12.86 metres and a maximum draught of 5.40 metres. The tug is equipped with 1,808 kWh of battery capacity, enabling it to achieve a bollard pull of 70 tonnes and a speed of 12.5 knots.

Since the ElectRA series was launched in 2021, the tugs have entered service in Europe, North America and Latin America, often in environmentally sensitive waters. Current operators include HaiSea Marine, Saam Towage, Svitzer, Buksér og Berging and Botas.

Sanmar noted that the series has also received 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.

Rüçhan Çıvgın, Commercial Director of Sanmar Shipyards, said: "We took a strategic decision to be at the forefront of this change and are working collaboratively to achieve a sustainable future. 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 said it continues to focus on meeting growing demand for lower-emission propulsion systems in the maritime sector.