The Single Electricity Market Committee (SEMC) decision SEM-15-071 “Process for the Calculation of Outturn Availability”, published on 29 September 2015, required that the TSOs establish a forum which will be responsible for publication of separate ex-ante outage plans for Northern Ireland and Ireland. The SEMC decision also required that the ex-ante outage plans for each outage season be sent to the RAs for review. This Ex‐Ante Outturn Available Connection Asset (OACA) Annual Maintenance Plan contains the scheduled maintenance of Outturn Availability Connection Assets for the 2024 outage season