September 12, 2024: Tesvolt’s Maritime Solutions division announced that it merged with Ocean Batteries from Norway at the start of September to create Tesvolt Ocean. Tesvolt holds a 51% stake in the new joint venture.

Tesvolt Ocean will offer the “Kaptein Series” power storage system which it says offers advantages in space, weight and power. In terms of space the battery modules can be installed individually anywhere in the ship — even on the floor.

“Most batteries approved for use in shipping did not even have a continuous C-rate of 2C. At 4C, the “Kaptein” storage system offers the highest continuous C-rate available in the maritime industry to date. This means significantly shorter charging times for ship owners,” says Tesvolt Ocean.

“The new storage system also scores highly in terms of weight. At just 4.83kg per kWh of storage capacity, it will be the lightest battery system for shipping on the market; batteries currently available on the market weigh at least 7kg per kWh. A unique fire suppression system ensures maximum safety.”

The new batteries were launched at SMM, the huge maritime industry trade fair, last week in Hamburg.

Kent Thoresen, CTO of Tesvolt Ocean said: “The range of ships with electric propulsion is still a problem for many owners. Ship spaces are often cramped, so not enough battery modules can be accommodated to achieve the desired range. At 246Wh per litre, our new Kaptein system has the highest energy density on the market to date, meaning despite its high capacity it takes up very little space.”