Operational
Colocation
Air cooled
Tier III

Digital Realty ACC2 Ashburn

Digital Realty · Ashburn Corporate Campus

IT live
36 MW
Free to lease
2.9 MW
$ / kW·mo
$69
White space
250k ft²

Inventory

92% occupied

Power

36 MWlive

2.9 MW to lease · 33.1 MW in use

White space

250k ft²total

20k ft² free · 230k ft² occupied

23k m² · 1,858 m² free

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

Power

IT live36 MW
Free to lease2.9 MW
Utility feed45 MW
Campus / planned36 MW

About 9 MW of the utility feed is cooling, conversion, and house load.

Power cost

$69/kW·mo

7.3¢ industrial · 9.5¢ after PUE 1.30

Per MW·year
$831k
This site · 36 MW
$30M/yr
8 kW rack
$554/mo
3.2¢ cheapdear 22.4¢

2.3× the cheapest market (Iceland Landsvirkjun). Same IT load there is $17M/yr less.

Northern Virginia / Dominion · utility tariff × PUE, not colo list price.

Redundancy
2N
Opened
2010
Renewable match
60%
Rack density
8 kW
PUE
1.301.00 ideal · 1.60 typical
Power source
Dominion Energy / NOVEC.

Cooling

Plant

Evaporative

Liquid

Not deployed

Rack density

8 kW

H100-eq

WUE

0.59 L/kWh

fleet avg · 2025 · 186k m³/yr at 36 MW

0 dry2.50 evaporative

Operator fleet average applied to this hall — not a site meter. Digital Realty 2025 Impact Report.

Indirect evaporative / IDEC, N+1. High-density liquid cabinets on request.

Network carriers

9

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

Ashburn, Virginia, United States

44470 Chilum Place, Ashburn, VA

39.016°, -77.458° · North America

Tenants / users

Hyperscale, cloud, enterprise

Notes

Dupont Fabros ACC campus, acquired 2017. Purpose-built wholesale in Data Center Alley.

Operator site

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