The Energy-Oriented Centre of Excellence

EoCoE is a EuroHPC Centre of Excellence contributing to Europe transition to sustainable energy through High Performance Computing. Now in its third phase, the project harnesses exascale technologies, massively parallel simulations, and advanced computational methods to tackle some of the most pressing challenges in renewable energy. At the heart of EoCoE are five lighthouse applications spanning four strategic domains: fusion, photovoltaics, water, and wind energy. By enhancing these applications, making them exascale-ready, and developing and optimising the underlying software tools and mathematical libraries, the project contributes to both the green energy transition and the advancement of scientific computing methodologies in Europe. This paper presents the five lighthouse applications and highlights the key achievements in performance, portability, and productivity. It further describes the development of enabling tools and libraries, and outlines the project broader efforts to maximise scientific, technological, and societal impact.