Post by EirGrid Group

⚡T-4 Capacity Auction – Provisional Results for Capacity Year 2029/30⚡ EirGrid and SONI - System Operator for Northern Ireland have today released the Provisional Results for the latest Capacity Auction, which are subject to approval by the CRU and UR, the regulatory authorities in Ireland and Northern Ireland respectively. The T-4 Capacity Auction for Capacity Year 2029/30 concluded on 26th March 2026, securing capacity 42 months ahead, with the aim of supporting the future reliability and resilience of power systems in Ireland and Northern Ireland. In the joint role administering the Capacity Market, EirGrid and SONI discharge the T-4 Auction process from the start of the auction cycle through to qualification assessment, auction execution and subsequent post auction activities for successful units awarded capacity. The CRU and UR oversee and decide the parameters for each Capacity Auction. 🔍 Key highlights from the provisional results: ⚙️ Capacity was secured across a wide range of technologies, including existing and new generator units, interconnectors, hydro, wind, storage, demand side units and refurbishing generator units. ✅ 3,862.32 MW of capacity secured for Capacity Year 2029/30, of which 2,454.22 MW was procured in Ireland and 1,408.10 MW was procured in Northern Ireland. 💶 The auction cleared at EUR 135,499.99 — average price of awarded capacity was almost 6% lower in Ireland than the previous T-4 Auction. 🔥 Gas turbines were the main source of procured capacity. 🆕 206.04 MW of new capacity was successful and 1,371.05 MW were awarded five-year Intermediate Length Contracts to refurbish capacity. 🌱 21.6% of awarded capacity was secured from wind, solar, battery storage and interconnectors. ⚠️ These results are provisional and will become final once approved by the regulatory authorities. Final results are scheduled to be published on 5th May 2026. 🌐 Learn more about the Capacity Market in Ireland and Northern Ireland: https://www.sem-o.com/ ** All megawatt units (MWs) are derated figures ** #EnergyMarket #PowerSystem #EnergySecurity #GridReliability #EnergyTransition