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Mäntsälä
Nation / PlaceFI

Mäntsälä

Finnish municipality hosting Nebius data-centre capacity.

Mäntsälä, a Finnish municipality near Helsinki, is getting a second Nebius data-centre site of up to 70 MW from 2027, DataCenterDynamics reported on 12 August 2026.

Last refreshed: 14 August 2026 · Appears in 1 active topic

Key Question

Why is a small Finnish town hosting 455 MW of AI data-centre capacity?

Timeline for Mäntsälä

#13 11 Aug

Auditors could not count Nebius's assets

Data Centres: Boom and Backlash
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Background

Mäntsälä is a municipality roughly 60km northeast of Helsinki that already hosts Nebius data-centre capacity.

Nebius told shareholders on 12 August 2026 that it added new Finnish capacity during the second quarter, and DataCenterDynamics reported the detail: a second Mäntsälä facility of up to 70 MW coming online from 2027, taking the country's Nebius footprint to 455 MW across three sites . The build sits inside a wider Nordic and Baltic expansion that also added a first Estonian site and UK capacity in the same quarter.

Finland markets itself to hyperscale operators as a low-carbon alternative to congested hubs such as Dublin and London, where connection queues have lengthened.

Common Questions
Where is Mäntsälä, Finland?
Mäntsälä is a municipality about 60km northeast of Helsinki, now hosting a cluster of Nebius AI data-centre sites.Source: DataCenterDynamics
How much power will Nebius's Mäntsälä data centres use?
Nebius's build-out across its Mäntsälä sites, including a new one of up to 70 MW from 2027, takes Finnish capacity to 455 MW across three sites.Source: DataCenterDynamics
Why is Nebius expanding in Finland?
Nebius is expanding Nordic and Baltic capacity as part of a wider Q2 2026 build-out that also added sites in the UK and Estonia.Source: Nebius Group Letter to Shareholders Q2 2026
Source Material