Mapped (unverified)AI / GPU compute
LUMI (supercomputer)
Kainuu, Finland
Source: OpenStreetMap
LUMI (supercomputer) is a mapped data center in Kainuu, Finland. It runs on Finland's grid, which was 4% fossil-fuelled at 57 gCO₂e/kWh in 2025 (Ember).
Reporting by Eric Keller · Updated Jun 17, 2026
Real parent
—
Operator
—
Grid carbon
57 gCO₂/kWh
Clean electricity
96%
DC power price
6.53¢/kWh
Region
Kainuu
Overview
source: linkLUMI is a petascale supercomputer located at the CSC data center in Kajaani, Finland.
The grid behind this site
source: Ember · EurostatGrid carbon intensity
57 gCO₂/kWh
Clean electricity
96%
Fossil electricity
4%
Data-center power price
6.53¢/kWh
A large data center in Finland pays 6.53¢/kWh for electricity — a household pays 23.19¢, 72% more than the data center (Eurostat).
National grid context, not this facility's own metering. Full country picture: Finland data centers.
In the news
source: Google News (local + English)- Suomeen sijoitetaan uusi yhteiseurooppalainen supertietokone ja EU:n tekoälytehdasSTT Info· Dec 11, 2024
- LUMI on edelleen Euroopan tehokkain supertietokoneSTT Info· Nov 14, 2023
- Suomessa käynnistyy mahtava supertietokone: LUMI murskaa numerotmtvuutiset.fi· Mar 27, 2021
- LUMI-supertietokoneen hukkalämmöllä tuotetaan 20 prosenttia Kajaanin kaukolämmöstä: CSC ja Loiste Lämpö allekirjoittivat sopimuksenCision News· May 20, 2020
- Seinäjoki to host €7.5b AI data center campusDaily Finland· Jul 15, 2026
- Bull delivers Finland’s national supercomputer Roihu to CSC’s Kajaani data centerData Center Dynamics· May 26, 2026
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