Sialia Yacht is making waves with its range of advanced, all-electric performance cruisers. These yachts, ranging from 40 to 100 feet, combine style, performance, and comfort with a strong commitment to environmental responsibility. Central to Sialia's innovative approach is its revolutionary electric drivetrain, developed by its sister company, Ampros.


Sialia 45

Ampros has created an electric system that incorporates a proprietary Ship Management System (SMS), a groundbreaking feature that elevates the functionality, safety, and longevity of the yachts. The SMS allows for features like extended battery operating parameters and remote monitoring, and predictive maintenance. This dedication to innovation, coupled with the yachts' construction using lifecycle-assessed and recycled materials, ensures that Sialia Yachts are not only environmentally friendly but also retain high resale values. Furthermore, Sialia Yachts backs its confidence in its technology by offering up to a 10-year warranty on its Ampros drivetrain and batteries.



At the heart of Sialia's success is the collaboration between co-founder Stanislav Szadkowski, a veteran in green mobility with over two decades of experience in battery manufacturing, and Tomasz Gackowski, the founder and CEO of Ampros. Together, they have developed the most advanced systems in the industry. According to Milvio Ricci, Chief Operating Officer at Sialia Yachts, Ampros functions as a system integrator, having developed what is arguably the first truly practical and functional all-electric drivetrain in the marine market.



The proprietary SMS acts as the "brain" of the drivetrain. Ricci explains that the SMS ensures the safety and optimal performance of the system by monitoring operations and enabling predictive and preventative maintenance. This capability is a key reason Sialia can offer extended warranties on its systems, including the batteries. The SMS also maximizes battery output, similar to how a performance map enhances a car engine's ECU. By safely accessing extra bands of capacity, the SMS allows Sialia yachts to utilize a greater percentage of the battery's potential. This capability has been proven by Sialia Yachts' first model, the 17.6-meter Sialia 57 "Deep Silence," which has lost only 2% of its total battery capacity over three years of extensive operation.



The system also features a user-friendly graphical interface (GUI) that provides real-time information about the yacht's performance, range, and system status. The GUI also allows operators to monitor the status of pumps, cooling systems and battery systems, switch on the optional renewable-diesel range extender and more. Sialia has prioritized safety in its battery pack design. The batteries are engineered to prevent fires, with IP67-rated cases that discharge quickly if water intrusion occurs. Additionally, the batteries are installed in banks, ensuring continued operation even if one battery experiences a problem.

The Ampros system at the core of Sialia Yachts is fully upgradeable, future-proofing the yachts as battery technology evolves. Owners can easily swap in new battery packs with higher capacity, instantly increasing range. The SMS also supports over-the-air (OTA) updates, allowing for on-the-fly improvements to system performance and efficiency. These features, along with the minimal maintenance needs of the electric drivetrain, ensure that Sialia Yachts will hold their value far longer than traditional yachts with combustion engines.


Sialia 57 Deep Silence. Photo by Blueiprod

Established in 2017, Sialia Yachts, owned by Silent Straits, is a company focused on sustainability and ocean-friendly innovation aiming to set new standards in yachting, with designs that inspire both enthusiasts and experts. The company offers the following models: 45, 59, and 80 Explorer. Sialia Yachts is based in Warsaw, Poland, with a team that includes members in the Netherlands and Italy.

Credits: Sialia Yachts

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