Microgrids and nanogrids are increasingly deployed to support decentralized generation, local resilience, and renewable integration. However, their growing reliance on digital control, communication networks, cloud services, and IT–OT integration exposes them to diverse cybersecurity threats. Unlike traditional utility-scale systems, microgrids and nanogrids often operate under resource constraints, heterogeneous architectures, and limited cybersecurity expertise, making direct application of large-scale security frameworks impractical. This paper proposes a structured cybersecurity assessment framework for small- and medium-scale energy systems, supporting systematic risk identification,... More >

The increasing integration of digital technologies into electric power networks has transformed traditional grids into complex cyber-physical systems. Yet, the level of digital maturity across operators remains uneven, lacking a unified assessment framework. This paper proposes a structured model for evaluating the degree of digitalization in power grids, integrating technological, organizational, and analytical dimensions. The model introduces six core domains, technological infrastructure, data and analytics, operational processes, cybersecurity, organizational culture, and distributed energy integration, each evaluated across four maturity levels. A weighted scoring system is used to comp... More >