Under the European Union’s Third Energy package Member States are obliged to implement a set of EU Network Codes and ensure compliance by TSOs, DSOs and industry. This framework contract provided expert support to the electricity market regulator (CRU) in the implementation of six of the eight Network Codes in the wider context of the restructuring of Ireland’s electricity markets, with the introduction of the Integrated Single Electricity Market (I-SEM) to align with the EU target Model.