2026 Spring Tech Workshop Session 1A: IBR Dominated Systems

Presentation files available at: https://www.esig.energy/event/2026-spring-technical-workshop/ Session 1A: IBR Dominated Systems Session Chair: Katie Iversen, Senior Manager, Generation Modeling Engineering, AES Foundational assumptions around protection, voltage control, and resource capabilities are being redefined in IBR-dominated grids. This session highlights real-world experience and emerging requirements for operating and planning reliable grids with very high inverter penetration. Protection of Inverter-dominated Transmission Systems: Evaluation for Hawai’i Island Ulrich Müenz, Principal Key Expert Advanced Control and Optimization, Siemens Overload Requirements for IBRs to Support the Needs of the Grid Sai Gopal Vennelaganti, Manager, Global Power System Lead, Tesla Use of Battery Energy Storage Systems in IBR Dominated Grids Benjamin Braun, Principal Engineer – Power Controls, Fluence (Germany) Observations on Voltage Control in the Australian NEM: Potential Impacts on Operations and Forecasting Jonathon Dyson, Executive General Manager, Services, AZZO (Australia) All Together – Working as a Team for a Reliable IBR Dominant Grid Katie Iversen, Senior Manager, Generation Modeling Engineering, AES