This call focuses on the development of innovative naval hybrid propulsion and power systems that address both the environmental challenges of achieving carbon neutrality by 2050 and the demanding operational requirements of modern military vessels. It is driven by the need to overcome the limitations of carbon-neutral fuels such as hydrogen, ammonia, and methanol, which, despite being produced in an environmentally friendly manner, have energy density, safety, and toxicity issues that hinder their application on frontline warships. The call therefore emphasizes the development of propulsion and power systems that can efficiently use both expensive long-chain e-fuels and less energy-dense alternatives, while ensuring that performance criteria such as autonomy, survivability, and minimal noise and signature emissions are met.

The project is expected to deliver a prototype, testbed, and a comprehensive architecture for modular and hybrid propulsion systems, including integrated DC power systems. It calls for the navalisation of commercially available technologies such as electrical propulsion systems, SiC-based power electronics, DC grids, fuel cells, and high-capacity energy storage devices like Li-ion batteries, super-capacitors, and flywheels. A critical component of the initiative is the creation of a joint digital simulation environment that leverages data-driven methods and advanced modelling to simulate, test, and validate system performance under various conditions, including fault scenarios and dynamic energy loads.

In addition, the call requires detailed studies and simulations to analyze the behavior of DC grids in fault conditions, investigate standardized power quality requirements, and assess the impact of different energy conversion methods on mission profiles. These activities will support the development of advanced control strategies and AI-based optimization methods aimed at reducing fuel consumption and greenhouse gas emissions while maintaining optimal military performance. The project also focuses on ensuring that all components, from power sources to energy conversion systems, meet strict safety standards and are robust enough to withstand shock and battle damage.

The initiative will further integrate dislocated testing facilities across Europe with a combined digital twin and physical hardware-in-the-loop environment to validate new designs and methodologies. By benchmarking against established military requirements, the project aims to deliver systems that offer enhanced energy efficiency, reduced life cycle costs, and improved interoperability across a wide spectrum of naval vessels. This holistic approach is designed to accelerate the adoption of commercially developed technologies into military applications, ultimately contributing to cleaner, more efficient naval operations.

Opening: 18-02-2025
Deadline(s): 16-10-2025