Wärtsilä supplies hybrid propulsion technology for Stena RoRo ships

Finnish technology company Wärtsilä has won an order to supply its hybrid propulsion system for three new RoPax ferries under construction for Swedish company Stena RoRo.

The new ships will be chartered to Brittany Ferries under a long-term agreement to sail between Portsmouth, UK and the French ports of St Malo and Caen.

They are designed and developed by Stena RoRo and Brittany Ferries.

Of the new vessels, two will be fitted with 11.5 MWh batteries, which are said to offer nearly double the power currently used for hybrid propulsion.

Previously, Wärtsilä had been awarded a contract to supply a range of solutions for the ships.

Solutions include main and auxiliary engines, gearboxes, controllable-pitch propellers (CPPs), powerplants, fuel gas supply system, Nacos navigation and automation, and an integrated control alarm and monitoring system.

The RoPax ships can be powered by either liquefied natural gas (LNG) or batteries.

In addition, the ships will feature the latest generation Leclanché energy storage system called Navius ​​​​MRS-3. The system should have a size and weight advantage over comparable ship batteries.

According to Wärtsilä, hybrid ships can integrate different ship systems and enable real-time optimization of the onboard energy system.

Håkan Agnevall, President and CEO of Wärtsilä, said: “Hybridization is one way to shape the decarbonization of the shipping industry. This order strengthens Wärtsilä’s leadership position in the hybrid segment.”

Earlier this month, Wärtsilä was selected to provide its hybrid propulsion technology for Eastern Pacific Shipping’s 11 new PCTC vessels.

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