Nowadays 98% of vessels are still diesel-powered. However, due to stricter global regulations related to NOx emissions, the marine and offshore industry has already adopted new advanced technologies.

The future belongs to fully electric vessels but in the meantime, the marine hybrid systems increase the flexibility in design and installation, optimize operational performance and minimize environmental impact.

With electric motors working closely together with the engines, battery chargers and batteries within a single system, you can make the most of the advantages of electric and/or hybrid propulsion resulting in a system being both powerful and green.


Building blocks

The 200kW, 750V DC-DC and the 200kW, 1200V DC-DC converters are specifically designed in terms of voltage ranges and power for charging and discharging batteries in marine hybrid and electric propulsion systems. Moreover, unique features in the device itself give the whole power plant advantages both during commissioning and during normal operation.


  Power DC voltage Bidirectional Isolation Cooling
RedPrime 200kW DC DC converter 200 kW 750 Vdc Yes No Air
RedPrime 200kW DC DC converter 200 kW 1200 Vdc Yes No  Air
TinoPrime 15kW AC DC DC Converter 15 kW 450 Vdc Yes Yes Liquid, IP67



Our convertes are already operating and running on a number of vessels including:

  • Kotug RT Evolution - the EU first hybrid tugboat
  • Kotug RT Emotion
  • Carolyn Dorothy tug boat - world’s first marine hybrid propulsion system on a Harbour assist tugboat
  • Cambpbell Foss tug boat

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