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Stonewall Creek Business Park

OperatingHyperscaleBuildingLeesburg, Loudoun County, Virginia

Part of Google — Leesburg, VA campus

40% profile completeness
29 claims from 7 sources
Current facility power
Not yet sourced
Planned capacity
Not yet sourced
Floor area
920,100 sq ft[2]
Confirmed
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
High confidence
Project verification
Verified operating
Operation documented by permit / site plan.
Current stage
Operational
Furthest stage with documented evidence
Utility · ISO
Dominion Energy · PJM
Substation: Gant 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
AI evidence brief
Summarizes only the evidence on this page. Answers citing anything else are rejected automatically.

Project verification

Development
  1. Announcedimplied by a later stage
  2. Land acquiredimplied by a later stage
  3. Planning / zoningimplied by a later stage
  4. PermittingSep 27, 2026
    Permit / site plan
    • Sep 27, 2026 · Permit / case B90275380100[2]
    • Sep 27, 2026 · Permit / case B80333910100[2]
    • Sep 27, 2026 · Permit / case B00405460100[2]
    • Sep 27, 2026 · Permit / case B00313850100[2]
    • Sep 27, 2026 · Permit / case B00305190100[2]
    • Sep 27, 2026 · Permit / case BLDC-2024-008905[2]
Grid interconnection
  1. Interconnection application
  2. Feasibility study
  3. System impact study
  4. Facilities study
  5. Interconnection agreement / service contract
Build & energization
  1. Financing
  2. Under constructionimplied by a later stage
  3. Energizationimplied by a later stage
  4. OperationalSep 27, 2026
    Community map · Permit / site plan
    • Sep 27, 2026 · Reported status: operating[1]
    • Sep 27, 2026 · Reported status: operating[2]

● 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

  1. facility
    Stonewall Creek Business Park
  2. substation
    Gant Substation (230 kV)[1]
    Proximity onlyUnverified
    Nearest mapped substation, 0.37 km away. Proximity does not establish that it serves the site.
  3. transmission
    Brambleton - Goose Creek (500 kV)[1]
    Proximity onlyUnverified
    Highest-voltage line mapped within 2 km (0.17 km away). Not confirmed as the supply path.
  4. utility
    Dominion Energy[3]
    Service territoryLikely
    Retail service territory containing the site
  5. ISO / RTO
    PJM[4]
    Service territoryLikely
    Balancing authority: PJM
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

QueueRelationshipStageMW req.MW appr.QueuedExpected in servicePOI / TOSource · as of
PJM X4-039
Stonewall Energy Park · Gas
Possibly related generation
Speculative
Generation request name/developer shares “stonewall” with this facility, in the same county. Not confirmed as serving it.
In service
In Service; feasibility: Document Posted; system impact: Document Posted; facilities: Document Posted; ISA/GIA: Document Posted
800750Jan 30, 2012In service Apr 28, 2017Pleasant View-Brambleton 230kV
TO: Dominion
[5] Sep 27, 2026

On-site & dedicated generation

  • Potomac Energy Center, LLC (Natural Gas, 766 MW) is 0.9 km away[7]
    EIA plant within 1.5 km; proximity does not establish that it supplies the facility
    Natural gasCo-located766 MWUnverified
  • PJM X4-039 Stonewall Energy Park (Gas, 800 MW requested)[5]
    Generation request name/developer shares “stonewall” with this facility, in the same county. Not confirmed as serving it.
    Natural gasArrangement unknown800 MWSpeculative

Location & imagery

Mapped outline
Coordinates
39.05096, -77.53956
Address
42300 Red Triangle Lane, Leesburg, VA[1]Likely
County
Loudoun County
Photographs

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

Ownership, operation & customers

  1. 1. Property owner of record
    Hayden Technologies LLC(unreviewed)[2]
  2. 2. Owner / developer
    Not identified
  3. 3. Operator
    Google[1]Likely
  4. 4. Tenant / cloud
    Not identified
  5. 5. End customer / workload
    Not identified
Power supply
Utility:
Dominion Energy[3]Unverified

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
Operator
Google[1]Likely
Utility
Dominion Energy[3]Unverified

Most likely retail provider among 2 overlapping service territories (largest retail sales; territory polygons are approximate). Also overlapping: Northern Virginia Elec Coop.

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

ISO / RTO
PJM[4]Likelyderived

Location falls inside this ISO/RTO footprint.

Balancing authority
PJM[3]Likelyderived

Control area of the containing utility territory.

Nearest mapped substation
Gant Substation (230 kV)[1]Likelyderived

Nearest substation mapped in OpenStreetMap; proximity does not establish which substation serves the site.

Distance to substation
0.4 km[1]Likelyderived
Highest-voltage line nearby
500 kV[1]Likelyderived

Highest-voltage transmission line mapped within 2 km.

State avg. industrial price
10.07¢/kWh[6]Confirmed

Virginia statewide average, July 2026.

State avg. commercial price
11.68¢/kWh[6]Confirmed

Virginia statewide average, July 2026.

Generation within 50 km
1.56 GW[7]Confirmedderived

39 EIA-reported plants within 50 km.

Generation queued in county
1.04 GW[5]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 infrastructureTypeDistanceVoltage / capacitySource
206;227 · Virginia Electric and Power CompanyTransmission line0.14 km230 kV[1]
Brambleton - Goose Creek · Virginia Electric & Power CompanyTransmission line0.17 km500 kV[1]
230 kV lineTransmission line0.2 km230 kV[1]
227;2178 · Virginia Electric and Power CompanyTransmission line0.45 km230 kV[1]
20 kV lineTransmission line0.72 km20 kV[1]
Potomac Energy Center, LLC · Potomac Energy Center LLCPower plant (Natural Gas)0.9 km766 MW[7]
Montgomery County Resource Recovery · Covanta Montgomery, Inc.Power plant (Biomass)18.1 km54 MW[7]
Dickerson Power · Dickerson Power, LLCPower plant (Natural Gas)18.8 km299 MW[7]
Blake Solar Plant · Horus West Virginia 1, LLCPower plant (Solar)34.7 km80 MW[7]
Nih Cogeneration Facility · National Institutes of HealthPower plant (Natural Gas)38.9 km28 MW[7]
Covanta Alexandria/Arlington Energy · Covanta Alexandria/ArlingtonPower plant (Biomass)45.1 km29 MW[7]
Covanta Fairfax Energy · Covanta Fairfax IncPower plant (Biomass)47.3 km98 MW[7]
Central Utility Plant At White Oak · GSA Metropolitan Service CenterPower plant (Natural Gas)48.1 km54 MW[7]
Gant Substation · NOVECSubstation0.37 km230 kV[1]
Trappe Rock SubstationSubstation0.44 km230 kV[1]
Stonewater Switching Station · Virginia Electric and Power CompanySubstation0.45 km230 kV[1]
Trappe Rock SubstationSubstation0.45 km230 kV[1]
Thunderball SubstationSubstation0.5 km230 kV[1]
Stonewater SubstationSubstation0.72 km230 kV[1]
Largest queued generation in this countyFuelQueue statusMWSource
Loudoun 230 kVPJM AG2-285StorageIn study · proposed 2023-12150 MW[5]
Beaumeade 230 kVPJM AG2-287StorageIn study · proposed 2023-12150 MW[5]
New Road StoragePJM AE2-019StorageIA signed · proposed 2026-12120 MW[5]
Dulles SolarPJM AF1-147SolarIA signed · proposed 2023-12100 MW[5]
Roundtable 230 kVPJM AG2-307StorageIn study · proposed 2023-12100 MW[5]
Shelhorn 230 kVPJM AG2-323StorageIn study · proposed 2023-12100 MW[5]

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

  1. Announced
    —
  2. Land acquired
    —
  3. Permitting
    —
  4. Construction start
    —
  5. First operational
    —
  6. Expected completion
    —
Permit / case numbers
B90275380100, B80333910100, B00405460100, B00313850100, B00305190100, BLDC-2024-008905[2]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

ParcelRecord ownerAcresZoning / useBuilding sq ftSource
194498227000
Loudoun County, VA
HAYDEN TECHNOLOGIES LLC
Project: Project Aspen
119.07IP (ZMAP-2008-0017) · Data Center920,133
built
[2]
Site area
119.1 acres[2]Confirmed

Legal acreage of the parcel(s).

Sources disagree. Also reported: 29.7 acres[1] (likely)
Zoning
IP[2]Confirmed
Land use
Data Center[2]Confirmed
Annual property tax
Not yet sourced

Size

Floor area
920,100 sq ft[2]Confirmed

Building area on the county's data-center parcel inventory (from building permits).

Parcel / land records
MCPI 194498227000 (Loudoun County)[2]Confirmed

What changed (last 3 years)

Follow this facility (RSS)

No tracked changes yet. Values are recorded on every data refresh, so changes will appear here over time.

Timeline

No dated events sourced yet.

Other buildings on this campus

1

All claims (provenance audit)

29
FieldValueSourceConfidenceAs ofStatus
NameStonewall Creek Business Parkway/706726088 name=Stonewall Creek Business Park[1] Likely2026-09-27Shown
StatusOperating[1] derivedUnverified2026-09-27Shown
StatusOperating[2] derivedConfirmed2026-09-27Shown
Facility typeHyperscale[1] derivedUnverified2026-09-27Shown
Address42300 Red Triangle Lane, Leesburg, VA[1] Likely2026-09-27Shown
Property owner of recordHayden Technologies LLCMCPI 194498227000: HAYDEN TECHNOLOGIES LLC[2] Confirmed2026-09-27Shown
OperatorGoogleoperator=Google[1] Likely2026-09-27Shown
UtilityDominion Energyterritory 19876: VIRGINIA ELECTRIC & POWER CO (INVESTOR OWNED, DOMINION RESOURCE[3] derivedUnverified2022Shown
ISO / RTOPJMPJM INTERCONNECTION, LLC[4] derivedLikely—Shown
Balancing authorityPJM[3] derivedLikely—Shown
Nearest mapped substationGant Substation (230 kV)way/817632571[1] derivedLikely2026-09-28Shown
Distance to substation0.4 km[1] derivedLikely2026-09-28Shown
Highest-voltage line nearby500 kV[1] derivedLikely2026-09-28Shown
Generation queued in county1.04 GW[5] derivedConfirmed2026-09-27Shown
State avg. industrial price10.07¢/kWh[6] Confirmed2026-07Shown
State avg. commercial price11.68¢/kWh[6] Confirmed2026-07Shown
Generation within 50 km1.56 GW[7] derivedConfirmed202502Shown
Permit / case numbersB90275380100[2] Confirmed2026-09-27Shown
Permit / case numbersB80333910100[2] Confirmed2026-09-27Shown
Permit / case numbersB00405460100[2] Confirmed2026-09-27Shown
Permit / case numbersB00313850100[2] Confirmed2026-09-27Shown
Permit / case numbersB00305190100[2] Confirmed2026-09-27Shown
Permit / case numbersBLDC-2024-008905[2] Confirmed2026-09-27Shown
Floor area920,100 sq ft[2] Confirmed2026-09-27Shown
Site area29.7 acres[1] derivedLikely2026-09-27Superseded / alternative
Site area119.1 acres[2] Confirmed2026-09-27Shown
Parcel / land recordsMCPI 194498227000 (Loudoun County)[2] Confirmed2026-09-27Shown
ZoningIP[2] Confirmed2026-09-27Shown
Land useData Center[2] Confirmed2026-09-27Shown