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€1.5 billion data centre planned for Mayo been blocked

Sep 18, 2026 · 10m

Summary

This episode discusses the overturning of planning permission for a €1.5 billion data centre in Mayo, a decision opposed by campaigner Rosie Leonard but criticized by Digital Infrastructure Ireland CEO Ronan Kelly. The debate centers on whether the facility failed to secure sufficient renewable energy contracts, with Leonard arguing that data centres are outpacing grid capacity and harming climate goals. Kelly counters that the sector supports thousands of jobs and that the real issue is grid connectivity, not total capacity. The hosts and guests explore the tension between Ireland’s digita…

Topics discussed

Intro: Mayo data centre planning permission overturned Guest introductions: Ronan Kelly and Rosie Leonard Ronan Kelly: Disappointment and LEAP policy context Discussion on conditional planning and renewable contracts Rosie Leonard: Friends of the Earth stance on emissions Grid constraints and impact on local heating and housing Wider context: Data centre growth vs climate targets Debate on job creation vs electricity consumption Dispute over employment figures and efficiency metrics Data sovereignty, latency, and domestic infrastructure needs Rosie Leonard: Sustainability concerns and UN cautionary tale Local community impact and grid capacity limits Ronan Kelly: Renewable waste and grid connectivity solutions
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