Facilities / CSC / EuroHPC JU

CSC / EuroHPC JU — LUMI, Renforsin Ranta, Kajaani

Finland · Operational

Status Operational
Capacity (MW) LUMI system draw UNVERIFIED; up to 200 MW available at business park Sources: kdce.fi
Power source claim 100% Vattenfall hydropower; waste heat supplies ~20% of Kajaani district heating Sources: www.datacenter-forum.com · lumi-supercomputer.eu
Published PUE Negative-adjacent PUE claims exist via heat reuse; formal PUE UNVERIFIED Sources: lumi-supercomputer.eu
Ownership / jurisdiction CSC (Finnish state) + EuroHPC JU (EU); public sector Sources: lumi-supercomputer.eu
AI / GPU relevance VERY HIGH — flagship EU AI/HPC supercomputer (AMD GPUs); Green500-ranked Sources: lumi-supercomputer.eu
Verification notes 'Roihu' follow-on system announced at Kajaani (single source, UNVERIFIED)
Fields marked UNVERIFIED could not be confirmed against a public source. We publish uncertain data as uncertain.