The National Competence Centre in HPC – Supporting Science and Business

High-performance computing (HPC) has become a foundation for cutting-edge discovery and industrial innovation in Europe. The European High-Performance Computing Joint Undertaking (EuroHPC JU) funds and coordinates a continent-wide ecosystem of world-class systems, HPC software, skills, and services. Within this ecosystem, the National Competence Centre in HPC (NCC) in Poland consolidates the potential of six leading computing centers to serve researchers, enterprises - including SMEs - and public administration. This article introduces the strategic rationale of EuroHPC and the EuroCC program, explains how the Polish NCC is organized and funded, details its service portfolio, and documents representative scientific and industrial use cases. We conclude with forward-looking remarks on data-intensive research, and the role of competence centers in ensuring that compute power translates into measurable impact.