broader transition within Ireland's electricity system, from one focused primarily on generation capacity towards one increasingly shaped by flexibility, system integration and efficient use of renewable electricity. As deployment continues to accelerate, the relationship between solar, storage and grid operation is expected As solar deployment expands across both rooftops and solar farms, lreland is followed by sharper evening demand increases. Known internationally as the "duck curve", this trend has emerged in many solar-rich electricity systems and reflects system operation. The emergence of this trend in Ireland highlights the increasing importance of flexibility, storage and demand-side participation as solar continues