European Sovereignty Monitor

Compute and infrastructure

Fortum and DayOne agree to develop up to 560 MW data centre in Finland

Fortum signed a site development agreement with data centre operator DayOne to support zoning and grid connection for a phased development of up to 560 megawatts in Nurmijarvi, Finland, a project also requiring a Finnish defence ministry permit.

Reported Fortum press release, 22 January 2026

What it does not test. This does not establish that construction has started or that all permits, including the defence ministry's, have been granted.

How this item counts. No movement: no answer to who owns, who operates, whose law governs or who made the parts changes. Weight 0. Site deal only, no owner/operator stated, defence permit still pending. European Sovereignty Index

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