Challenges to system stability and EU regulatory alignment for Bosnia and Herzegovina’s renewable energy integration: Focus on transient system stability during fault-induced disturbances

This paper reviews the legal and regulatory framework in Bosnia and Herzegovina (BiH) for connecting renewable energy production facilities.It assesses how well BiH's regulations align with European Union (EU) standards for grid connections, focusing on stability criteria from the EU network code for generators.The paper also establishes a theoretical foundation for the transient stability of distributed generators and presents a verification methodology for distribution system operators in general.By developing a distribution network model and offering practical examples, this study aims to enhance the application of stability criteria, which are crucial for managing grids with high shares of renewable energy sources.This study underscores the importance of harmonized regulatory frameworks for the successful integration of renewable energy sources into the BiH power grid, aligning with the Energy Community Treaty objectives.It also identifies key gaps in the regulatory oversight of distribution networks, offering practical methodologies for distribution system operators to ensure compliance with stability requirements.Ultimately, this research provides actionable insights for policymakers, advancing practices for integrating renewable energy.These findings are essential not only for the sustainable expansion of renewable energy sources and the reliable operation of the distribution network but also for informing regulatory oversight and ensuring consistent implementation of EU standards across the sector.