Baglietto has found the future hybrid propulsion system for its yachts
The system allows navigation in diesel, diesel-powered, diesel-electric, and full-electric modes. It will be introduced on the Dom 133 and T52 hybrid models from 2025.
Baglietto has announced that it has worked with Siemens Energy and CGT to develop a new hybrid propulsion system that will power its hybrid yachts in the immediate future.
A statement explains that the interposed propulsion system represents a further step forward for Baglietto in the use of new eco-sustainable technologies on its yachts. Already bench-tested, it will be introduced starting in 2025 on the Dom 133 and T52 models with hybrid engines. The system can therefore also be installed on vessels equipped with Bzero hydrogen technology. The components have already been inspected, verified, and certified by Lloyd's Register.
"The new system will allow for greater flexibility of use, compact installation, and onboard comfort, as well as improved mechanical and electrical efficiency for a hybrid-parallel propulsion architecture. Once again, Baglietto demonstrates its determination to pursue innovative approaches to the implementation of alternative energy sources onboard. This is a further step toward the commitment the shipyard already made with the Bzero system to a truly sustainable future of yachting," commented Diego Michele Deprati, CEO of the La Spezia-based shipyard.
The propulsion system is state-of-the-art, according to the shipyard. It comprises a Caterpillar C32 Acert internal combustion diesel engine and an ultra-compact hybrid unit. The hybrid unit integrates both a low-consumption clutch and a highly efficient 180 kW electric motor into a compact package. This electric motor performs a dual role: it serves as an electric propulsion motor for silent, comfortable cruising and a shaft generator for maximum fuel efficiency. The entire system is managed by the Siemens Energy BlueDrive Eco, an advanced propulsion control system.
The innovative solution was developed by Siemens Energy in collaboration with Stromag and Lucchi Motori. The system allows navigation in Diesel, Diesel Axle Generation (without gensets), Diesel Electric (with gensets only), and Full Electric modes.
In traditional Diesel and Diesel Axle Generation mode, Caterpillar C32 Acert main engines are compatible with diesel fuel derived from 100% renewable raw materials, namely HVO (Hydrotreated Vegetable Oil) and synthetic diesel (e-diesel), in accordance with the EN15940 regulation. The latter, thanks to their highly renewable origin, allow for a reduction of up to 90% in CO₂ emissions calculated over the entire life cycle of the product, from the start of the process to its final use.
In Diesel Electric mode, the combination of a traditional diesel generator plus a variable speed diesel generator allows yachts to cruise at speeds of up to 9 knots, using biogenic diesel fuel, optimising fuel consumption and saving hours of use of the main engines.
In Full Electric mode, the latest-generation Li-ion battery packs with prismatic cells, safe and reliable, expandable up to 900kWh in a very small space, thanks to their high energy density, allow Baglietto yachts to navigate in Zero Emissions mode and remain at anchor in complete silence for times previously unthinkable.
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