Expanding
Neocloud
Liquid cooling
Tier III

Nebius Mäntsälä

Nebius · Mäntsälä

IT live
80 MW
Remaining
20 MW
$ / kW·mo
$54
White space
313k ft²

Inventory

80% occupied

Power

100 MWcampus

20 MW to commission · 80 MW in use

White space

391k ft²total

78k ft² free · 313k ft² occupied

36k m² · 7,258 m² free

Remaining power is campus IT not yet commissioned — captive capacity, not third-party colo.

Power

IT live80 MW
Remaining20 MW
Utility feed125 MW
Campus / planned100 MW

About 45 MW of the utility feed is cooling, conversion, and house load.

Power cost

$54/kW·mo

6.6¢ industrial · 7.4¢ after PUE 1.12

Per MW·year
$648k
This site · 80 MW
$52M/yr
40 kW rack
$2,158/mo
3.2¢ cheapdear 22.4¢

2.1× the cheapest market (Iceland Landsvirkjun). Same IT load there is $27M/yr less.

Finland Uusimaa · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2022
Renewable match
100%
Rack density
40 kW
PUE
1.121.00 ideal · 1.60 typical
Power source
Fingrid. Dual feeds. Nuclear (Olkiluoto 3) plus hydro and wind.

Cooling

Plant

Direct-to-chip

Liquid

Deployed

Rack density

40 kW

H100-eq

WUE

Operator has not published WUE. Blank, not zero — air-cooled sites still use some water.

Direct-to-chip cold plates and rear-door HX. Designed for 40 kW-plus AI racks.

Network carriers

4

On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.

Clouds

1

Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.

Location

Mäntsälä, Uusimaa, Finland

Mäntsälä, Uusimaa

60.634°, 25.318° · Europe

Tenants / users

Nebius AI Cloud

Notes

Former Yandex / Nebius Finnish GPU cloud. 100 MW class. Nordic hydro-nuclear mix. One of Europe's larger dedicated AI clouds.

Operator site

Compiled from public filings, operator pages, and reporting. Not an official operator specification.