Williams Grand Prix Technologies has launched the ES10M, a high-performance battery system for superyachts, support and explorer vessels, hybrid propulsion applications and refit programs. It is the company’s first dedicated marine product.
Based in Oxfordshire in the UK, alongside the Atlassian Williams F1 Team, Williams Grand Prix Technologies is applying engineering expertise developed over more than five decades in motorsport to advanced energy systems and physics-informed machine learning solutions for the marine sector.
Selin Tur, managing director and chief technology officer of Williams Grand Prix Technologies, said, “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. 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 scalable, high-specification battery system designed to support complex operational profiles and class-mandated safety case requirements through machine learning predictive control. Its modular architecture and wide voltage range are intended to suit a broad range of vessel types and configurations. Applications include superyacht hybrid-electric drives, retrofit projects for improved power management, and zero-emission hotel loads for extended battery-only operation at anchor. The system’s modularity allows for multibank installations on yachts over 100m LOA, as well as compact single-rack installations for vessels as small as 50m LOA. It is also designed for support and explorer vessels operating in demanding conditions, and can be scaled for fully electric propulsion in tenders, chase boats and support craft.
At the module level, the ES10M delivers 200Wh/kg gravimetric energy density and 325Wh/l volumetric density. Each module stores 9.8kWh at 50.4V and weighs 48.8kg. The overall system architecture scales from 39kWh to 4.2MWh and from 201.6V to 907.2V.
The system’s safety architecture uses thermal-grade materials and a selected cell format to limit cell-to-cell propagation, alongside an integrated gas management system designed for controlled venting. Its battery management system incorporates physics-informed machine learning to continuously monitor cell and module performance, with remote monitoring and diagnostics capability, while a supervisory controller can isolate individual battery strings. The ES10M carries an IP67 ingress protection rating at module level and has been designed to maritime-grade EMI/EMC standards. Lloyd’s Register class compliance is in progress.
Tur said the ES10M represents an initial step in the company’s marine strategy. “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.”
In related news, Echandia to supply batteries for two electric tugs in India’s Green Tug Transition Program