Operational
Colocation
Air cooled
Tier III

Bahnhof Pionen

Bahnhof · Pionen

Bahnhof Pionen facility
Wikimedia Commons / Holger.Ellgaard · Source
IT live
1.2 MW
Free to lease
0.1 MW
$ / kW·mo
$60
White space
12k ft²

Inventory

88% occupied

Power

1.2 MWlive

0.1 MW to lease · 1.1 MW in use

White space

12k ft²total

1,094 ft² free · 11k ft² occupied

1,089 m² · 102 m² free

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

Power

IT live1.2 MW
Free to lease0.1 MW
Utility feed1.5 MW
Campus / planned1.2 MW

About 0.3 MW of the utility feed is cooling, conversion, and house load.

Power cost

$60/kW·mo

6.8¢ industrial · 8.2¢ after PUE 1.20

Per MW·year
$715k
This site · 1.2 MW
$858k/yr
6 kW rack
$357/mo
3.2¢ cheapdear 22.4¢

2.1× the cheapest market (Iceland Landsvirkjun). Same IT load there is $454k/yr less.

Sweden SE3 · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2008
Renewable match
100%
Rack density
6 kW
Voltage
PUE
1.201.00 ideal · 1.60 typical
Power source
Svenska kraftnät / Vattenfall. Dual feeds. Hydro-nuclear Swedish grid.

Cooling

Plant

Free air

Liquid

Not deployed

Rack density

6 kW

H100-eq

WUE

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

Bedrock bunker. Free-air plus closed-loop. Former civil-defence cavern 30 m under Vita Bergen.

Network carriers

4

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

Stockholm, Stockholm, Sweden

Renstiernas gata 37, Södermalm, Stockholm

59.315°, 18.067° · Europe

Tenants / users

Bahnhof ISP, privacy-sensitive enterprise, media

Notes

White Mountain bunker. Sweden's most photographed hall. Small interconnection cavern, not wholesale AI. Complements Bahnhof's other Stockholm caves.

Operator site

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