Analysis of Delta in-out for Irish natural gas distribution network

Abstract

This article investigates the issue of Unaccounted for Gas (UAG) in the natural gas distribution network of Ireland, focusing on the DeltaIO (i.e. the difference between the gas entering and leaving the network). The study applies the DeltaIO methodology developed for Italian distribution networks to Gas Networks Ireland (GNI), the sole Distribution System Operator (DSO) in Ireland. The analysis covers the period from 2013 to 2019 and provides insights into the magnitude and trends of UAG in the Irish context. The results show that GNI's DeltaIO ranges from 0.93% to 1.57%, with an average of 1.15%. Comparisons with large Italian networks reveal higher DeltaIO values for GNI. The study demonstrates the compatibility of the DeltaIO methodology with the Irish distribution network and highlights the commercial implications of positive and negative DeltaIO values. The findings contribute to the understanding of UAG in the Irish natural gas sector and provide valuable insights for industry stakeholders and regulators.