U.K.-based Williams Grand Prix Technologies, alongside the Atlassian Williams F1 Team, has entered the marine sector with the launch of the ES10M, a high-performance battery system developed for superyachts, support and explorer vessels, hybrid propulsion applications, and refit programs. The launch marks the company’s first dedicated marine product, applying more than five decades of elite motorsports engineering to the superyacht and wider marine industries.
“As superyacht builders and refit specialists seek to improve energy efficiency and adopt alternative propulsion technologies, this is the ideal time to bring our extensive battery systems expertise from the Atlassian Williams F1 Team to the marine sector,” Selin Tur, managing director and chief technology officer of Williams Grand Prix Technologies, said in a statement. “Formula 1 is an environment where complex performance challenges are solved under immense pressure and where excellence is non-negotiable. Those same engineering principles, disciplines and standards are directly applicable to the evolving needs of the superyacht industry.”
The ES10M is a modular, scalable lithium-ion NMC cell battery system with a wide voltage range to suit a broad range of vessel types and configurations. Each module stores 9.8 kWh at 50.4V and weighs 48.8 kg, delivering 200 Wh/kg gravimetric energy density and 325 Wh/l volumetric density at the module level.
The system architecture scales from 39 kWh to 4.2 MWh and from 201.6V to 907.2V, making it suited to multibank installations across dedicated battery spaces on yachts larger than 100 meters, as well as single-rack installations on yachts at 50 meters. The system carries an IP67 ingress protection rating at the module level and was designed to maritime-grade EMI/EMC standards, with Lloyd’s Register class compliance in progress.
“The ES10M is the first step in our long-term strategy for the marine sector,” Tur said. “As we expand our marine offering, we will continue to apply the same data-driven, physics-informed methodology and uncompromising engineering standards that have defined our approach for decades.”
