Quarterly update of factors affecting Imperfections costs.

​This document describes the Terms of Reference (ToR) for the annual audit of the Scheduling and Dispatch process as to be implemented during the 2022 and 2023 audit periods. Its publication follows a public consultation on the proposed scope. Consultation responses are published above.

Guidelines for Power Park Modules during Alert and Emergency states

This publication presents the results of the DS3 System Services Volume Uncapped Gate 7 procurement.

This publication presents the results of the DS3 System Services Volume Uncapped Gate 7 procurement.

This publication presents the results of the DS3 System Services Volume Uncapped Gate 7 procurement.

Summary of the SONI Transmission Outages over the next two weeks

This Implementation Note has been written by SONI and EirGrid to offer guidance to those planning to connect Synchronous Condensers Units (SCU) in order to provide system services within Northern Ireland and Ireland, specifically in relation to the application of Grid Codes within both jurisdictions.

In response to Industry feedback the TSOs have published further details here on options available to reset Data Poor FFR and OR Performance Scalars ( Sections 5.25 and 5.26 of the DS3 System Service Protocol - Regualted Arrangements)

GL requires that TSOs of each synchronous area responsible for operating load frequency control and reserves, which for Ireland is EirGrid, and for Northern Ireland is SONI, should develop SAOA and LFCBOA. The SAOA and LFCBOA are contained in two respective documents with text relative to the legal articles.