DC
/

Compass IAD IE

Under constructionColocationBuildingLeesburg, Loudoun County, Virginia
40% profile completeness
31 claims from 7 sources
Current facility power
Not yet sourced
Planned capacity
Not yet sourced
Floor area
547,500 sq ft[2]
ConfirmedDisputed
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
Dominion Energy · PJM
Substation: Thunderball 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 — PJM does not publish large-load requests.
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 B30554590100[2]
    • Sep 27, 2026 · Permit / case B10332820100[2]
    • Sep 27, 2026 · Permit / case B20453710100[2]
    • Sep 27, 2026 · Permit / case B80293260100[2]
    • Sep 27, 2026 · Permit / case B20457790100[2]
    • Sep 27, 2026 · Permit / case B80293260400[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 constructionSep 27, 2026
    Permit / site plan
    • Sep 27, 2026 · Reported status: under construction[2]
  3. Energizationimplied by a later stage
  4. OperationalSep 27, 2026
    Community map
    • Sep 27, 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

  1. facility
    Compass IAD IE
  2. substation
    Thunderball Substation (230 kV)[1]
    Proximity onlyUnverified
    Nearest mapped substation, 0.4 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 (0.45 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

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.

Location & imagery

Mapped outline
Coordinates
39.04404, -77.53766
Address
42370 Thunderball Drive, Leesburg, VA 20175[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
    Compass Datacenters Iad I LLC(unreviewed)[2]
  2. 2. Owner / developer
    Not identified
  3. 3. Operator
    Compass Datacenters[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
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
Thunderball 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

40 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 & Power CompanyTransmission line0.42 km230 kV[1]
230 kV lineTransmission line0.42 km230 kV[1]
Brambleton - Goose Creek · Virginia Electric & Power CompanyTransmission line0.45 km500 kV[1]
227;2178 · Virginia Electric and Power CompanyTransmission line1.23 km230 kV[1]
20 kV lineTransmission line1.5 km20 kV[1]
Potomac Energy Center, LLC · Potomac Energy Center LLCPower plant (Natural Gas)1.7 km766 MW[7]
Montgomery County Resource Recovery · Covanta Montgomery, Inc.Power plant (Biomass)18.8 km54 MW[7]
Dickerson Power · Dickerson Power, LLCPower plant (Natural Gas)19.5 km299 MW[7]
Blake Solar Plant · Horus West Virginia 1, LLCPower plant (Solar)35.3 km80 MW[7]
Nih Cogeneration Facility · National Institutes of HealthPower plant (Natural Gas)38.6 km28 MW[7]
Covanta Alexandria/Arlington Energy · Covanta Alexandria/ArlingtonPower plant (Biomass)44.5 km29 MW[7]
Covanta Fairfax Energy · Covanta Fairfax IncPower plant (Biomass)46.5 km98 MW[7]
Central Utility Plant At White Oak · GSA Metropolitan Service CenterPower plant (Natural Gas)47.9 km54 MW[7]
Thunderball SubstationSubstation0.4 km230 kV[1]
Trappe Rock SubstationSubstation1 km230 kV[1]
Trappe Rock SubstationSubstation1.06 km230 kV[1]
Gant Substation · NOVECSubstation1.14 km230 kV[1]
Stonewater Switching Station · Virginia Electric and Power CompanySubstation1.22 km230 kV[1]
Stonewater SubstationSubstation1.51 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
B30554590100, B10332820100, B20453710100, B80293260100, B20457790100, B80293260400[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
194103673000
Loudoun County, VA
COMPASS DATACENTERS IAD I LLC
Project: True North
97.12OP (ZMAP-2017-0003) · Data Center547,475
bult/under construction
[2]
Site area
97.1 acres[2]Confirmed

Legal acreage of the parcel(s).

Zoning
OP[2]Confirmed
Land use
Data Center[2]Confirmed
Annual property tax
Not yet sourced

Size

Floor area
547,500 sq ft[2]Confirmed

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

Sources disagree. Also reported: 170,000 sq ft[1] (unverified)
Building footprint
170,000 sq ft[1]Likelyderived

Computed from the mapped OSM building outline.

Floors
1[1]Likely
Parcel / land records
MCPI 194103673000 (Loudoun County)[2]Confirmed

What changed (last 3 years)

Follow this facility (RSS)
  • Floor area
    170,000 sq ftSep 27, 2026[1]→547,500 sq ftSep 27, 2026[2]
  • Status
    OperatingSep 27, 2026[1]→Under constructionSep 27, 2026[2]

Timeline

No dated events sourced yet.

All claims (provenance audit)

31
FieldValueSourceConfidenceAs ofStatus
NameCompass IAD IEway/1387391201 name=Compass IAD IE[1] Likely2026-09-27Shown
StatusOperating[1] derivedUnverified2026-09-27Superseded / alternative
StatusUnder construction[2] derivedConfirmed2026-09-27Shown
Facility typeColocation[1] derivedUnverified2026-09-27Shown
Address42370 Thunderball Drive, Leesburg, VA 20175[1] Likely2026-09-27Shown
Property owner of recordCompass Datacenters Iad I LLCMCPI 194103673000: COMPASS DATACENTERS IAD I LLC[2] Confirmed2026-09-27Shown
OperatorCompass Datacentersoperator=Compass Datacenters[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 substationThunderball Substation (230 kV)way/1189695517[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 numbersB30554590100[2] Confirmed2026-09-27Shown
Permit / case numbersB10332820100[2] Confirmed2026-09-27Shown
Permit / case numbersB20453710100[2] Confirmed2026-09-27Shown
Permit / case numbersB80293260100[2] Confirmed2026-09-27Shown
Permit / case numbersB20457790100[2] Confirmed2026-09-27Shown
Permit / case numbersB80293260400[2] Confirmed2026-09-27Shown
Floor area170,000 sq ft[1] estimatedUnverified2026-09-27Superseded / alternative
Floor area547,500 sq ft[2] Confirmed2026-09-27Shown
Building footprint170,000 sq ft[1] derivedLikely2026-09-27Shown
Floors1building:levels=1[1] Likely2026-09-27Shown
Site area97.1 acres[2] Confirmed2026-09-27Shown
Parcel / land recordsMCPI 194103673000 (Loudoun County)[2] Confirmed2026-09-27Shown
ZoningOP[2] Confirmed2026-09-27Shown
Land useData Center[2] Confirmed2026-09-27Shown