IREN’s Nostrum Buy Isn’t Just a Europe Expansion – It’s a 490MW Power Grab for AI Compute Dominance

(SeaPRwire) –

By: Ethan Gallagher

Every AI infrastructure firm talks about breaking into the European market. Almost none skip the costly, two-year site and power permitting slog. IREN just cut that line entirely with its Nostrum acquisition, and investors are already rewarding the move.

Official filings confirm IREN closed the Nostrum purchase on Monday, after first announcing the deal on May 7. The acquisition brings 490MW of secured grid-connected power in Spain, over 50 local staff, and a ready-made development pipeline. IREN stock climbed 4.35% to $62.37 after recovering from a late-morning dip.

The unstated subtext here is IREN didn’t just buy power contracts or empty land. It bought a team that already knows how to navigate Spanish permitting, grid connection, and renewable energy sourcing. That cuts at least 18 months off their first European data center launch timeline.

Official release notes add Nostrum was founded in 2009 as a renewable energy engineering firm, backed by Andera Partners in 2023, and rebranded to Nostrum Group in 2025 to focus on data center projects. The deal lifts IREN’s total global power portfolio to 5GW. The subtext here is Nostrum spent 16 years building ties with local grid operators and regulators. IREN avoids the common pitfall of US firms entering Europe that misjudge local zoning and renewable access rules. The 490MW capacity can power nearly 80,000 top-tier AI training GPUs right away.

Power access will overtake chip availability as the biggest bottleneck for global AI infrastructure players by 2026.

Author bio: Ethan Gallagher, a Silicon Valley Hardware Architect and Infrastructure Strategist with 12 years designing large-scale data center power and cooling systems.