​SOEF Markets - FASS - TSOs' Phased Implementation Roadmap - June 2025

​The Phased Implementation Roadmap (PIR) outlines the programme roadmap for the delivery of the Future Arrangements for System Services (FASS) and focuses on the key programme activities and milestones leading to the go live date. This document presents the third iteration (V3.0) of the Phased Implementation Roadmap.

​2025 April - SOEF Markets - FASS - Volume Forecasting Methodology Recommendations Paper

This paper sets out the TSOs’ recommendations to the SEMC regarding the DASSA Volume Forecasting Methodology, reflecting the feedback received on the Consultation Paper through stakeholders’ written responses and input to the industry workshop. This paper also summarises that feedback and provides the TSOs’ commentary in response.

​​2025 April - SOEF Markets - FASS - DASSA Top-Up Mechanism Consultation Industry Webinar

As part of the ongoing work to develop Future Arrangements for System Services, EirGrid and SONI held a webinar on 16 April to provide information to industry on the Joint Options Assessment conducted between the TSOs and Regulatory Authorities, and the resulting proposal for the DASSA Top-Up Mechanism, known as the Residual Availability Determination (RAD), a consultation on which is currently open.