Expanding
Colocation
Liquid cooling
Tier III

CyrusOne AMS1 Halfweg

CyrusOne · PolanenPark

IT live
28 MW
Free to lease
2.5 MW
$ / kW·mo
$144
White space
325k ft²

Inventory

91% occupied

Power

28 MWlive

2.5 MW to lease · 25.5 MW in use

White space

325k ft²total

12k ft² free · 312k ft² occupied

30k m² · 1,126 m² free

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

Power

IT live28 MW
Free to lease2.5 MW
Utility feed67.5 MW
Campus / planned54 MW

About 39.5 MW of the utility feed is cooling, conversion, and house load.

Power cost

$144/kW·mo

15.4¢ industrial · 19.7¢ after PUE 1.28

Per MW·year
$1.7M
This site · 28 MW
$48M/yr
16 kW rack
$2,302/mo
3.2¢ cheapdear 22.4¢

4.8× the cheapest market (Iceland Landsvirkjun). Same IT load there is $38M/yr less.

Haarlem / Liander · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2021
Renewable match
100%
Rack density
16 kW
PUE
1.281.00 ideal · 1.60 typical
Power source
TenneT / Liander. Dual MV inlets plus on-site diesel. Dutch wind-plus-gas mix; DDA halls buy 100 percent certified green power.

Cooling

Plant

Hybrid

Liquid

Deployed

Rack density

16 kW

H100-eq

—

WUE

—

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

Hybrid CRAH plus CDU-fed direct-to-chip loops for high-density AI cabinets.

Network carriers

10

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

Clouds

5

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

Location

Halfweg, North Holland, Netherlands

Linieweg 1, 1165 AA Halfweg

52.382°, 4.755° · Europe

Tenants / users

Hyperscale, cloud, wholesale

Notes

Two buildings, 29,350 sqm / 54 MW campus on SADC PolanenPark, 15 km west of the ring. First hall 2021. Building 2 planned. Complements Goodman AMS01 next door.

Operator site

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