This is a source-attributed discovery row. It can help you find a place and its citations; it is not a DataCenterData finding that the facility is distinct or currently operating.
Reported geography
Source-reported location for CyrusOne NVA1, NVA2 & NVA3 (Sterling).
Exact source coordinates (provider label); this is not a parcel claim. Nearby source points are combined into one accessible target that opens this exact map scope. View these exact rows on the interactive map →
Source row snapshot
- Operator as published
- CyrusOne
- Address and locality
- 21111 Ridgetop Circle · Sterling · Loudoun County · Virginia · 20166
- Official metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- Source-reported status
- operational
- Provider facility type
- data center
- Reported capacity
- Operational: 48 MW (source-reported; boundary not independently verified; MW measure not stated by provider)
- Source freshness
- 21 September 2026
- Location precision
- exact (provider label)
- Compute Atlas confidence label
- reported (provider's classification; not a DataCenterData check)
- Stable directory ID
dcd-dir-000370
Reported details
Source-reported by Compute Atlas; not independently verified by DataCenterData. Provider wording is kept; long provider notes are shortened and marked …; unknown is not zero; none of these values is totaled, ranked or compared.
- Electric utility
- Dominion Energy Virginia
- Land area
- 14 acres (source-reported; parcel boundary not established)
These reviews flag conflicting scope, inconsistent source text or support that has not been established. A withheld value may appear in the explanation, but is not displayed as an established field. The upstream row remains attributed under Sources.
- Cooling: Previously held pending provider-field review. The concern has not been resolved by an independent source review for this captured edition; the field remains withheld.
What the source record says
Confirmed 14-acre enterprise-class campus.
Any MW value is reproduced as source-reported context. Its measurement boundary is not established consistently enough for comparison. Unknown is not zero.
Status history supplied by the source
No status history was supplied in this edition.
Sources and attribution
These sources are listed for the whole row. Unless a figure links to its own source, the provider does not mark which one gave it, so a figure may not appear in every source.
- CyrusOne facility directory · CyrusOne
- OpenStreetMap way/435324552 · OpenStreetMap
- HIFLD Electric Retail Service Territories (ORNL/DOE-CESER, 2023-08 vintage) · Oak Ridge National Laboratory (ORNL) / HIFLD
Adapted from Compute Atlas by Edward Kubiak, edition 1.34.1, under CC BY 4.0. Upstream ID cyrusone-nva1-nva2-nva3-sterling-va. Filtered to data-center records in the 50 U.S. states; selected fields normalized for search and display; DataCenterData directory IDs added. Some locations in this layer are reported by the provider as derived from OpenStreetMap (© OpenStreetMap contributors, ODbL, https://www.openstreetmap.org/copyright) and Epoch AI (CC BY 4.0).
Compute Atlas 1.34.1 with retained prior rows and publication holds. This is a DataCenterData composite, not an unmodified publisher edition. This row uses the captured source from 1.34.1, source as of 2026-10-14T20:40:52.293Z.
Federal registry record
What the U.S. EPA Facility Registry Service records at this street address, selected by DataCenterData from EPA’s ECHO Exporter. U.S. government data; not independently verified by DataCenterData. It does not establish who owns or operates the site, that the site is a data center, whether it is operating, its size, or whether the registration covers one building or a whole campus.
EPA lists a facility of CyrusOne at 21111 RIDGETOP CIRCLE, STERLING, VA 20166 under industry code 518210 (data processing, hosting); the registry does not say what the facility is.
- Name as registered
- CYRUSONE LOUDOUN TECH CENTER
- Address as registered
- 21111 RIDGETOP CIRCLE, STERLING, VA 20166
- EPA registry ID
110064024452
One EPA registration; it may cover generators for a whole campus or a single building.
Registrations EPA lists for this ID
- Clean Air Act registration (stationary sources, typically standby generators)
That does not mean the row is wrong, and it does not mean no reviewed record exists for the same place. A link is added only when an identifier or source establishes the match.
Recorded information
What this page records, grouped by topic, with the source's units and qualifications. Company-reported values stay labeled as company-reported. Related listings are shown separately.
Licensed directory listing dcd-dir-000370
Licensed directory row.
Provider notes and the source narrative are printed on this page and are not repeated here.
Identity and relationships
- Provider facility type: data center
Provider facility type.
Location and precision
- 21111 Ridgetop Circle, Sterling, VA 20166 · Loudoun (Exact location)
Roles
- Operator: CyrusOne
Operator label as published by the provider; no parent company is inferred.
Lifecycle
- Source-stated status: source-reported operational
Provider status label; not a DataCenterData finding that the facility is operating.
Area, acreage and buildings
- Land area: 14 acres (source-reported; parcel boundary not established)
Power capacity
- Reported capacity: Operational: 48 MW (source-reported; boundary not independently verified; MW measure not stated by provider)
Reproduced as the page prints it; not ranked or totaled; unknown is not zero.
- Electric utility: Dominion Energy Virginia
Utility as named by the provider.
Sources, dates, limitations and corrections
- Provider update date: 2026-09-21
Provider update date is not a DataCenterData verification date.
Not yet recorded here: Cooling, water, PUE and WUE · Connectivity · Services · Certifications and design ratings · Rack density · Availability · Specification links and contact · Permits, incentives, jobs and proceedings.
Licensed values: adapted from Compute Atlas by Edward Kubiak under CC BY 4.0. Source-reported and not independently verified.
Update this profile with a public source. The request includes topics needing more information; this does not mean the facility lacks them. Corrections and additions are reviewed before publication.