Sentinel Ashburn - Building 2

Under constructionEst.UnclassifiedBuildingSterling, Loudoun County, Virginia

Sentinel Ashburn - Building 2 is an under construction data center in Sterling, Virginia. Operated or owned by Sentinel Data Centers. Power capacity has not been disclosed or collected yet. Verification: under construction. 5 cited sources.

Part of Sentinel Data Centers — Sterling, VA campus

40% profile completeness

21 claims from 5 sources

Last verified against sources: Nov 2, 2026

Newest dated evidence: Nov 2, 2026

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Cite this

Text

Datacenter Source. “Sentinel Ashburn - Building 2.” /facilities/sentinel-ashburn-building-2-sterling-va. Data as of 2026-11-02. Accessed 2026-11-02.

BibTeX

@misc{datacentersource_sentinel_ashburn_building_2_sterling_va_2026,
  title = {{Sentinel Ashburn - Building 2}},
  author = {{Datacenter Source}},
  year = {2026},
  howpublished = {\url{/facilities/sentinel-ashburn-building-2-sterling-va}},
  note = {Data as of 2026-11-02; accessed 2026-11-02. Compiled from cited sources, including OpenStreetMap contributors (ODbL) and Epoch AI (CC BY 4.0)},
}

Please also cite the original source of any specific figure (linked beside it).

Current facility power

Not yet sourced

Planned capacity

Not yet sourced

Floor area

1.06M sq ft[2]

ConfirmedConfirmed

Buildings (planned)

Not yet sourced

Capital cost / investment

Not yet sourced

First operational

Not yet sourced

POWER & GRID

Time-to-power · verification · interconnection

Time to power

Energized — operating

Medium confidence

Project verification

Under construction

Construction documented by permit / site plan.

Current stage

Operational

Furthest stage with documented evidence

Utility · ISO

Not identified

Substation: Prentice Substation (230 kV) (nearest, unverified)

Power reality

Announced

No record

Interconnection request

No record

Contracted / approved

No record

Under construction

No record

Operational

No record

⚠ No public interconnection record for this load.

AI evidence brief

Summarizes only the evidence on this page. Answers citing anything else are rejected automatically.

Project verification

Development

Announcedimplied by a later stage
Land acquiredimplied by a later stage
Planning / zoningimplied by a later stage
PermittingNov 2, 2026
Permit / site plan
- Nov 2, 2026 · Permit / case BLDC-2025-033837[2]
- Nov 2, 2026 · Permit / case BLDC-2024-055894[2]

Grid interconnection

Interconnection application
Feasibility study
System impact study
Facilities study
Interconnection agreement / service contract

Build & energization

Financing
Under constructionNov 2, 2026
Permit / site plan
- Nov 2, 2026 · Reported status: under construction[2]
Energizationimplied by a later stage
OperationalNov 2, 2026
Community map
- Nov 2, 2026 · Reported status: operating[1]

● documented · ◌ implied by a later stage · ○ no evidence found. Dates are those of the earliest dated evidence, which can be later than when a stage actually began. Evidence classes: Permit / site plan, Community map.

Grid path

facility
Sentinel Ashburn - Building 2
→
substation
Prentice Substation (230 kV)[1]
Proximity onlyUnverified
Nearest mapped substation, 0.27 km away. Proximity does not establish that it serves the site.
→
transmission
230 kV line[1]
Proximity onlyUnverified
Highest-voltage line mapped within 2 km (0.38 km away). Not confirmed as the supply path.
→
utility
Not identified
UnknownUnverified

Substation capacity:: not published
Required upgrades:: not yet sourced
Congestion:: not yet sourced (no nodal price data)

Dashed boxes are based on proximity only and do not establish which asset serves the site.

Interconnection records

No interconnection-queue record is linked to this site. Of the ISOs we ingest, only NYISO publishes large-load requests; PJM, ERCOT, MISO, SPP and CAISO queues list generation only.

On-site & dedicated generation

No on-site, behind-the-meter or dedicated generation found in sources.

LOCAL IMPACT

Water · generation · incentives · regulation · rates

Water & cooling

Not yet collected: we haven't found a source for water use or the cooling type at this site. Know one? Add a source

On-site generation & air permits

Not yet collected: we haven't found a source for on-site generation or an air permit for this site. Know one? Add a source

Incentives

Not yet collected: we haven't found a source for tax abatements, PILOTs or other incentives for this project. Know one? Add a source

Regulatory events

Not yet collected: we haven't found a source for hearings, rezonings, permits or commission proceedings. Know one? Add a source

Utility & rates

Not yet collected: we haven't found a source for a large-load tariff or commission docket for the serving utility. Know one? Add a source

Location & imagery

Mapped outline

Coordinates: 38.99511, -77.46176
Address: 44525 Low Latency Lane, Sterling, VA 20166[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Nov 2, 2026.Likely
County: Loudoun County

Photographs

No openly licensed ground-level photos matched to this site yet.

Ownership, operation & customers

1. Property owner of record
Sdc Ashburn I LLC(unreviewed)[2]
2. Owner / developer
Not identified
3. Operator
Sentinel Data Centers(unreviewed)[1]Likely
4. Tenant / cloud
Not identified
5. End customer / workload
Not identified

Power supply

Not identified

Each link is sourced separately. The property owner of record is often a special-purpose entity; the same company appearing in two roles is shown only when sources say so.

All parties with evidence

Property owner of record: Sdc Ashburn I LLC(unreviewed)[2]Confirmed
Operator: Sentinel Data Centers(unreviewed)[1]Likely

No tenants or end users identified in our sources yet.

Power (all fields)

Current facility power: Not yet sourced
Planned capacity: Not yet sourced

Capacity figures are nameplate or contracted; annual consumption is a labeled model estimate, not metered data.

Grid & electricity

Nearest mapped substation: Prentice Substation (230 kV)[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Sep 28, 2026.Likelyderived
Nearest substation mapped in OpenStreetMap; proximity does not establish which substation serves the site.
Distance to substation: 0.3 km[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Sep 28, 2026.Likelyderived
Highest-voltage line nearby: 230 kV[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Sep 28, 2026.Likelyderived
Highest-voltage transmission line mapped within 2 km.
State avg. industrial price: 9.98¢/kWh[4]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Aug 2026.Confirmed
Virginia statewide average, August 2026.
State avg. commercial price: 11.14¢/kWh[4]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Aug 2026.Confirmed
Virginia statewide average, August 2026.
Generation within 50 km: 1.65 GW[5]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jan 1, 202502.Confirmedderived
64 EIA-reported plants within 50 km.
Generation queued in county: 1.04 GW[3]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Nov 2, 2026.Confirmedderived
11 active generation interconnection requests in Loudoun County: Storage 940 MW, Solar 100 MW. Queued projects often don't get built.
Interconnection status: Not yet sourced
Contracted / committed power: Not yet sourced

Nearby infrastructure	Type	Distance	Voltage / capacity	Source
230 kV line · Virginia Electric & Power Company	Transmission line	0.38 km	230 kV	[1]
2031;2188 · Virginia Electric & Power Company	Transmission line	0.7 km	230 kV	[1]
2095;2137 · Virginia Electric & Power Company	Transmission line	0.86 km	230 kV	[1]
2149;2214 · Virginia Electric & Power Company	Transmission line	0.99 km	230 kV	[1]
2186;2188 · Virginia Electric & Power Company	Transmission line	1 km	230 kV	[1]
2203;2214 · Virginia Electric & Power Company	Transmission line	1.28 km	230 kV	[1]
Potomac Energy Center, LLC · Potomac Energy Center LLC	Power plant (Natural Gas)	10 km	766 MW	[5]
Montgomery County Resource Recovery · Covanta Montgomery, Inc.	Power plant (Biomass)	22.9 km	54 MW	[5]
Dickerson Power · Dickerson Power, LLC	Power plant (Natural Gas)	23.9 km	299 MW	[5]
Nih Cogeneration Facility · National Institutes of Health	Power plant (Natural Gas)	31.8 km	28 MW	[5]
Covanta Alexandria/Arlington Energy · Covanta Alexandria/Arlington	Power plant (Biomass)	36 km	29 MW	[5]
Covanta Fairfax Energy · Covanta Fairfax Inc	Power plant (Biomass)	38.5 km	98 MW	[5]
Central Utility Plant At White Oak · GSA Metropolitan Service Center	Power plant (Natural Gas)	41.7 km	54 MW	[5]
Blake Solar Plant · Horus West Virginia 1, LLC	Power plant (Solar)	43.8 km	80 MW	[5]
Prentice Substation	Substation	0.27 km	230 kV	[1]
Washington Metropolitan Area Transit Authority substation · Washington Metropolitan Area Transit Authority	Substation	0.37 km	34.5 kV	[1]
Lockridge Substation · Virginia Electric & Power Company	Substation	0.48 km	230 kV	[1]
Shellhorn Substation · Virginia Electric & Power Company	Substation	0.95 km	230 kV	[1]
Washington Metropolitan Area Transit Authority substation · Washington Metropolitan Area Transit Authority	Substation	0.96 km	34.5 kV	[1]
Stratus Substation	Substation	1 km	230 kV	[1]

Largest queued generation in this county	Fuel	Queue status	MW	Source
Loudoun 230 kVPJM AG2-285	Storage	In study · proposed 2023-12	150 MW	[3]
Beaumeade 230 kVPJM AG2-287	Storage	In study · proposed 2023-12	150 MW	[3]
New Road StoragePJM AE2-019	Storage	IA signed · proposed 2026-12	120 MW	[3]
Dulles SolarPJM AF1-147	Solar	IA signed · proposed 2023-12	100 MW	[3]
Roundtable 230 kVPJM AG2-307	Storage	In study · proposed 2023-12	100 MW	[3]
Shelhorn 230 kVPJM AG2-323	Storage	In study · proposed 2023-12	100 MW	[3]

Utility, ISO and nearby assets are derived from the site's location. Proximity to a substation or line doesn't establish the interconnection; that needs a utility filing or interconnection-queue record. Queue requests are applications, not commitments — most never reach operation.

Construction & permitting

Announced
—
Land acquired
—
Permitting
—
Construction start
—
First operational
—
Expected completion
—

Permit / case numbers: BLDC-2025-033837, BLDC-2024-055894[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 2, 2026.Confirmed

Real estate

Official assessments

Assessor's value for a tax year

None sourced yet

Recorded transactions

Sale prices from recorded deeds

None sourced yet

Model estimates

Our model — not an appraisal

None sourced yet

Parcel	Record owner	Acres	Zoning / use	Building sq ft	Source
063479549000 Loudoun County, VA	SDC ASHBURN I LLC Project: Project Nova	75.69	OP · Data Center	1,063,133 under construction	[2]

Site area: 75.7 acres[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 2, 2026.Confirmed
Legal acreage of the parcel(s).
Zoning: OP[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 2, 2026.Confirmed
Land use: Data Center[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 2, 2026.Confirmed
Annual property tax: Not yet sourced

Size

Floor area: 1.06M sq ft[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 2, 2026.Confirmed
Building area on the county's data-center parcel inventory (from building permits).
Building footprint: 163,300 sq ft[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Nov 2, 2026.Likelyderived
Computed from the mapped OSM building outline.
Parcel / land records: MCPI 063479549000 (Loudoun County)[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 2, 2026.Confirmed

What changed (last 3 years)

Follow this facility (RSS)

Status
Under constructionOct 26, 2026[2]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.→OperatingNov 2, 2026[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.

Timeline

No dated events sourced yet.

Other buildings on this campus

Proposed data center — Sdc AshburnPlanned · 159,600 sq ft footprint

All claims (provenance audit)

Field	Value	Source	Confidence	As of	Status
Name	Sentinel Ashburn - Building 2way/1568279137 name=Sentinel Ashburn - Building 2	[1]	Likely	2026-11-02	Shown
Status	Operating	[1] derived	Unverified	2026-11-02	Superseded / alternative
Status	Under construction	[2] derived	Confirmed	2026-11-02	Shown
Address	44525 Low Latency Lane, Sterling, VA 20166	[1]	Likely	2026-11-02	Shown
Property owner of record	Sdc Ashburn I LLCMCPI 063479549000: SDC ASHBURN I LLC	[2]	Confirmed	2026-11-02	Shown
Operator	Sentinel Data Centersoperator=Sentinel Data Centers	[1]	Likely	2026-11-02	Shown
Nearest mapped substation	Prentice Substation (230 kV)way/1442684740	[1] derived	Likely	2026-09-28	Shown
Distance to substation	0.3 km	[1] derived	Likely	2026-09-28	Shown
Highest-voltage line nearby	230 kV	[1] derived	Likely	2026-09-28	Shown
Generation queued in county	1.04 GW	[3] derived	Confirmed	2026-11-02	Shown
State avg. industrial price	9.98¢/kWh	[4]	Confirmed	2026-08	Shown
State avg. commercial price	11.14¢/kWh	[4]	Confirmed	2026-08	Shown
Generation within 50 km	1.65 GW	[5] derived	Confirmed	202502	Shown
Permit / case numbers	BLDC-2025-033837	[2]	Confirmed	2026-11-02	Shown
Permit / case numbers	BLDC-2024-055894	[2]	Confirmed	2026-11-02	Shown
Floor area	1.06M sq ft	[2]	Confirmed	2026-11-02	Shown
Building footprint	163,300 sq ft	[1] derived	Likely	2026-11-02	Shown
Site area	75.7 acres	[2]	Confirmed	2026-11-02	Shown
Parcel / land records	MCPI 063479549000 (Loudoun County)	[2]	Confirmed	2026-11-02	Shown
Zoning	OP	[2]	Confirmed	2026-11-02	Shown
Land use	Data Center	[2]	Confirmed	2026-11-02	Shown

Sources

[1]
OpenStreetMap — features tagged telecom=data_center or building=data_center
OpenStreetMap contributors · retrieved 2026-11-02 · ODbL 1.0
[2]
Existing Data Center Parcels
Loudoun County, VA — Department of Planning & Zoning GIS · retrieved 2026-11-02 · Public record
[3]
PJM New Services Queue (planning queues)
PJM Interconnection · retrieved 2026-11-02 · Public
[4]
Electric Power Monthly, Table 5.6.A — Average price of electricity to ultimate customers by state (August 2026)
U.S. Energy Information Administration · retrieved 2026-11-02 · Public domain
[5]
Power Plants in the U.S. (EIA-860)
U.S. Energy Information Administration · retrieved 2026-11-02 · Public domain

Record links

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How to read this page

Every value is a claim from a cited source. When sources disagree, the most trustworthy claim is shown and the others are listed beneath it.

Confirmed primary source · Likely reputable secondary or modeled · Unverified inferred · Speculative weak evidence.

Evidence level: ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. filing, deed, permit or grid recordAnnouncedStated by the company or reported in the press; not yet backed by a filing or grid record. company or press claimEst.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. satellite, model or map inferenceHow levels are assigned

derived computed by our pipeline; estimated a model estimate, not a disclosed figure. Methodology →