Generation

This document accompanies the Approved Generator Transmission Use of System (GTUoS) charges for both Ireland and Northern Ireland as calculated by the Transmission System Operators (TSOs) for the 2024/2025 tariff year and published on the EirGrid and SONI websites on 27 & 29 August 2024.

EirGrid and SONI, as Transmission System Operators (TSOs) for Ireland and Northern Ireland respectively, are pleased to present the annual Transmission System Performance Report for 2023. This report contains transmission system data and performance statistics for the transmission system in Ireland and Northern Ireland for the year 2023 (1 January 2023 – 31 December 2023)

The Single Electricity Market Committee (SEMC) decision SEM-15-071 “Process for the Calculation of Outturn Availability” was published on 29 September 2015. The decision applies to both transmission and distribution connected Centrally Dispatched Generating Units (CDGUs) and Controllable Power Park Modules (PPMs) (SEM Dispatchable and Controllable Generation Units) which are disconnected as a direct result of a transmission outage scheduled by the TSO. Outages on the distribution system are not related to the decision paper.