Expanding
Colocation
Liquid cooling
Tier III

Lefdal Mine Datacenter

Lefdal Mine Datacenter · Lefdal

Lefdal Mine Datacenter facility
Lefdal Mine Datacenter · Source
IT live
37 MW
Free to lease
5.2 MW
$ / kW·mo
$34
White space
333k ft²

Inventory

86% occupied

Power

37 MWlive

5.2 MW to lease · 31.8 MW in use

White space

333k ft²total

22k ft² free · 312k ft² occupied

31k m² · 2,005 m² free

Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.

Power

IT live37 MW
Free to lease5.2 MW
Utility feed80 MW
Campus / planned200 MW

About 43 MW of the utility feed is cooling, conversion, and house load.

Power cost

$34/kW·mo

industrial · 4.6¢ after PUE 1.15

Per MW·year
$403k
This site · 37 MW
$15M/yr
20 kW rack
$672/mo
3.2¢ cheapdear 22.4¢

1.3× the cheapest market (Iceland Landsvirkjun). Same IT load there is $3M/yr less.

Norway NO3 / Lefdal 132 kV · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2017
Renewable match
100%
Rack density
20 kW
PUE
1.151.00 ideal · 1.60 typical
Power source
Statnett 132 kV. Dual mountain-hall transformers. Hydro and wind.

Cooling

Plant

Seawater

Liquid

Deployed

Rack density

20 kW

H100-eq

WUE

0.02 L/kWh

this site · 2025 · 6,482 m³/yr at 37 MW

0 dry2.50 evaporative

Measured at this building. Lefdal Mine Datacenter (fjord closed-loop, no evaporative).

Fjord / seawater heat exchange. Closed loop, near-zero freshwater. Mountain-hall or coastal plant.

Network carriers

3

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

Clouds

3

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

Location

Nordfjordeid, Vestland, Norway

Lefdal olivine mine, Nordfjord

61.912°, 5.992° · Europe

Tenants / users

HPC, colo, supercomputing

Notes

Europe's largest underground hall by floor area: 120,000 sqm in a former olivine mine, 60 m below sea level. 37 MW live, 43 MW building, 80 MW connected, 200 MW end-state. WUE near zero. 3i Infrastructure majority 2026.

Operator site

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