EirGrid

Simulation Studies and Modelling Requirements

EMT Model Specification Documents For All Transmission Customers

Electromagnetic transient (EMT) studies are now required to assess the impact of new connections to the transmission system and to ensure the reliability of the power system operated with high levels of wind and solar generation.

EMT model specifications provide guidance on model structure, fidelity, interoperability, and usability for a range of technologies, including BESS, Solar PV PPMs, HVDC systems, Wind Power Plants, Synchronous Generators, Synchronous Condensers, and other Converter-Based Reactive Support Systems. 

The models are essential for capturing fast control dynamics, studying complex interactions, and supporting large-scale EMT simulation studies. 

The documents below outline the technical requirements for model submission, integration, and ongoing maintenance in line with industry best practice.