New data shows Ireland’s data centres are using roughly a quarter of the country’s electricity. Multiple outlets cite Central Statistics Office (CSO) figures indicating data centres account for about 23% of Ireland’s metered electricity consumption in 2025, with some reporting the figure as “almost a quarter” or “nearly a quarter.” TheJournal.ie and other sources say data-centre electricity consumption rises every year without exception, reflecting sustained growth. Other reporting puts the share at around 23% and links it to continued increases in demand, including one outlet citing a further rise of about 10% in consumption. The Register and TechRadar also note that growth is occurring despite limitations affecting the connection of new data centres to the electricity grid, particularly around Dublin, where new grid connections face restrictions or tighter requirements. TechRadar adds that data-centre electricity consumption has grown sharply over a decade, estimating a 360% increase, and frames the current usage in terms of power sent to servers. Across sources, the overall picture is the same: data-centre electricity demand is growing and represents a significant and rising portion of national consumption.