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.
Future Power Markets Newsletter - Issue 19 - April 2025
If you require further information on what has been published in this update, please email futurepowermarkets@eirgrid.com
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.
2025 March - SOEF Markets - FASS – DASSA Top-Up Mechanism Consultation Paper - EirGrid
As per the TSOs' Phased Implementation Roadmap V2.0 and as agreed with the Regulatory Authorities, the TSOs are required to consult on and submit a recommendation paper to the SEM Committee on a proposed DASSA Top-Up Mechanism, as an alternative to the Final Assignment Mechanism (FAM) as per the SEMC decision SEM-24-066.
The TSOs have today published the DASSA Top-Up Mechanism Consultation Paper which describes the Joint RA-TSO Options Assessment process that was implemented to develop a proposal supported by both parties and invites stakeholder feedback on this proposal.
2025 March - SOEF Markets - FASS - DS3 System Services Tariffs to FASS ('The Gap') Consultation Industry Webinar
As part of the ongoing work to develop Future Arrangements for System Services, EirGrid and SONI held a webinar to provide industry information on the four shortlisted options to address the period between the end of the current DS3 Regulated Arrangements and the go-live of the DASSA (including the TSOs’ recommended option) and to address questions received in advance of and during the webinar. The TSOs have today published the content presented during the webinar, including the questions raised by industry during the session and the TSOs' responses.