Baglietto present a hew hybrid propulsion system for yachts of the future

The innovative interposed propulsion train will be introduced in 2025 on DOM 133 and T52 models with hybrid engines

28 March 2024 | by Redazione

Baglietto have presented their new interposed hybrid propulsion system which will be fitted on the shipyard’s hybrid yachts in the near future. The project, created by Baglietto in partnership with international companies Siemens Energy and CGT, is a perfect example of the pioneering attitude of the shipyard and their commitment to greener and more sustainable boating.

Recently factory tested, the innovative interposed propulsion train will be introduced in 2025 on DOM 133 and T52 models with hybrid engines. The system may also be mounted on vessels using Bzero hydrogen technology, and the components have already been controlled, audited and certified by the Lloyd’s Register of Shipping.

The new system – explains Diego Michele Deprati, CEO of Baglietto – increases flexibility of use, it has compact installation and provides comfort on board, in addition to improved mechanical and electrical efficiency for hybrid-parallel type propulsion architecture. Yet again Baglietto demonstrates their determination to take an innovative path in favour of implementing alternative energies on board. A further step forward in the shipyard’s efforts, which started with the Bzero system, in creating a truly sustainable future for boating.”


This cutting edge system consists of an endothermic diesel Caterpillar C32 ACERT engine and an ultra-compact hybrid unit, capable of integrating, in a limited space, both low consumption friction and a high efficiency 180kw electric machinery. The electric machinery plays a dual role, because it acts as an electric propulsion engine, for silent and comfortable navigation, and axial generator, to optimise consumption. It is all managed by the Siemens Energy BlueDrive Eco, an advanced propulsion control system.

Developed by Siemens Energy with the contribution of Stromag and Lucchi Motori, this solution demonstrates how combining the best technology and working in partnership with other businesses can lead to cutting edge results, capable of taking a concrete step forward in sustainability and energy efficiency. The system allows navigating in diesel, axial diesel generation (without the need for gensets), electric diesel (gensets only) and full electric modes.

In diesel and axial diesel generation modes, the main Caterpillar C32 ACERT engines are compatible with 100% renewable raw material fuel, also known as HVO (Hydrotreated Vegetable Oil) and synthetic diesel (e-diesel), in accordance with EN15940 provisions. These, thanks to their renewable origin, help reduce CO2 emissions by up to 90% over the entire life cycle of the product, from the beginning to its final use.

In diesel electric mode, the combination of a traditional diesel genset and a variable rotation diesel genset allows yacht to travel at a maximum speed of 9 knots using biogenic fuel, reducing consumption and saving hours of use on the main engines, while in full electric mode, the latest generation of Li-Ion battery packs using prismatic cells, are safe, reliable and can be expanded up to 900 kWh using very little space, thanks to their high energy density, ensure yachts have a navigation autonomy at zero emissions, and time at anchor in complete silence, that have been unthinkable until now.




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