Customer Information

This application, (Reduced Criteria - Generation Application Form) outlines the reduced criteria EirGrid requires to progress an application for connection to the Transmission System.

Other System Charges (OSC) are levied for non-compliance to provide necessary services to the system. This document sets out the harmonised arrangements for the calculation of Other System Charges by the Transmission System Operators (TSOs), EirGrid in Ireland and SONI in Northern Ireland respectively, in accordance with the Regulatory Authorities' (RAs) Decision Paper SEM-24-057.

EirGrid and SONI held a virtual industry workshop on Thursday 5th September 2024, where the TSOs and our partners Afry presented the All-Island System Services Supplier Charge Consultation Paper and hosted a Q&A session. This document contains the questions asked in the session and the TSOs' responses.

EirGrid and SONI held a virtual industry workshop on Thursday 5th September 2024, where the TSOs and our partners Afry presented the All-Island System Services Supplier Charge Consultation Paper and hosted a Q&A session. These are the slides presented at that workshop.

This statement sets out EirGrid’s charges for use of the transmission system applicable from October 1st 2024 until such time another Statement is approved by the Commission under Section 36 of the Electricity Regulation Act, 1999, as amended. The Transmission Use of System charges published in this statement have been derived in accordance with the 2024 revenue (CRU/2023/104) and the 2025 revenue (CRU/2024/82) allowed by the Commission for Regulation of Utilities (CRU).

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.

ECP-2 is the second stage of the CRU’s development of enduring connection policy in Ireland. On 10 June 2020 the CRU published their decision on ECP-2, which set policy for at least three annual batches of connection offers (ECP 2.1, ECP-2.2, and ECP-2.3). The application window for the third batch, ECP-2.3, closed 30 September 2022. The System Operators (SOs) have used the ECP-2 decision paper and subsequent ruleset to determine which applicants have been initially successful in making the list of 843 projects due to receive connection offers under Category A.