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Proposed data center — LEGI-2023-0064

PlannedUnclassifiedSiteLoudoun County, Virginia
10% profile completeness
16 claims from 7 sources
Current facility power
Not yet sourced
Planned capacity
Not yet sourced
Floor area
Not yet sourced
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
H1 2028 – H2 2031
Low confidencewindow, not a prediction
Project verification
Documented development
Permitting documented by permit / site plan.
Current stage
Permitting
Furthest stage with documented evidence
Utility · ISO
Dominion Energy · PJM
Substation: Altair Switching Station (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.
  • ⚠ No recorded land acquisition found.
AI evidence brief
Summarizes only the evidence on this page. Answers citing anything else are rejected automatically.
How the time-to-power window was estimated
Evidence used
  • Current stage: Permitting (furthest stage with documented evidence)[1]
  • No public grid record: No interconnection request or utility contract found; adds uncertainty to the upper bound.
Assumptions
  • From “Permitting”, large loads have typically taken 1.5–4 more years to first power (editorial range; see Methodology).
  • The window is a range of plausible outcomes under these assumptions, not a forecast. It moves as new filings, queue updates or imagery arrive.
Window: H1 2028 – H2 2031

Project verification

Development
  1. Announcedimplied by a later stage
  2. Land acquiredimplied by a later stage
  3. Planning / zoningimplied by a later stage
  4. Permitting2023
    Permit / site plan
    • 2023 · Permit date[1]
    • 2023 · Loudoun County site plan LEGI-2023-0064 — Approved, 556,746 sq ft proposed.[1]
    • Sep 27, 2026 · Site plan LEGI-2023-0064: Approved[1]
    • Sep 27, 2026 · Permit / case LEGI-2023-0064[1]
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 construction
  3. Energization
  4. Operational

● 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.

Grid path

  1. facility
    Proposed data center — LEGI-2023-0064
  2. substation
    Altair Switching Station (230 kV)[4]
    Proximity onlyUnverified
    Nearest mapped substation, 0.66 km away. Proximity does not establish that it serves the site.
  3. transmission
    Brambleton - Goose Creek (500 kV)[4]
    Proximity onlyUnverified
    Highest-voltage line mapped within 2 km (0.99 km away). Not confirmed as the supply path.
  4. utility
    Dominion Energy[2]
    Service territoryLikely
    Retail service territory containing the site
  5. ISO / RTO
    PJM[3]
    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

  • Potomac Energy Center, LLC (Natural Gas, 766 MW) is 0.7 km away[7]
    EIA plant within 1.5 km; proximity does not establish that it supplies the facility
    Natural gasCo-located766 MWUnverified

Location & imagery

County parcel
Coordinates
39.06260, -77.55058
County
Loudoun County
Photographs

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

Ownership, operation & customers

  1. 1. Property owner of record
    Not identified
  2. 2. Owner / developer
    Not identified
  3. 3. Operator
    Not identified
  4. 4. Tenant / cloud
    Not identified
  5. 5. End customer / workload
    Not identified
Power supply
Utility:
Dominion Energy[2]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
Utility
Dominion Energy[2]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[3]Likelyderived

Location falls inside this ISO/RTO footprint.

Balancing authority
PJM[2]Likelyderived

Control area of the containing utility territory.

Nearest mapped substation
Altair Switching Station (230 kV)[4]Likelyderived

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

Distance to substation
0.7 km[4]Likelyderived
Highest-voltage line nearby
500 kV[4]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

38 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
230 kV lineTransmission line0.42 km230 kV[4]
20 kV lineTransmission line0.89 km20 kV[4]
Brambleton - Goose Creek · Virginia Electric & Power CompanyTransmission line0.99 km500 kV[4]
227;2178 · Virginia Electric & Power CompanyTransmission line1.02 km230 kV[4]
206;227 · Virginia Electric and Power CompanyTransmission line1.22 km230 kV[4]
Potomac Energy Center, LLC · Potomac Energy Center LLCPower plant (Natural Gas)0.7 km766 MW[7]
Montgomery County Resource Recovery · Covanta Montgomery, Inc.Power plant (Biomass)17.4 km54 MW[7]
Dickerson Power · Dickerson Power, LLCPower plant (Natural Gas)18 km299 MW[7]
Blake Solar Plant · Horus West Virginia 1, LLCPower plant (Solar)33.1 km80 MW[7]
Nih Cogeneration Facility · National Institutes of HealthPower plant (Natural Gas)40.1 km28 MW[7]
Covanta Alexandria/Arlington Energy · Covanta Alexandria/ArlingtonPower plant (Biomass)46.6 km29 MW[7]
Covanta Fairfax Energy · Covanta Fairfax IncPower plant (Biomass)48.9 km98 MW[7]
Central Utility Plant At White Oak · GSA Metropolitan Service CenterPower plant (Natural Gas)49.1 km54 MW[7]
Altair Switching StationSubstation0.66 km230 kV[4]
Unnamed substationSubstation0.7 km230 kV[4]
Cochran Mill Delivery PointSubstation0.95 km230 kV[4]
Stonewater SubstationSubstation1.01 km230 kV[4]
Belmont Substation · Virginia Electric and Power CompanySubstation1.02 km230 kV[4]
Trappe Rock SubstationSubstation1.29 km230 kV[4]
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
    2023[1]
  4. Construction start
    —
  5. First operational
    —
  6. Expected completion
    —
Permitting status
Site plan LEGI-2023-0064: Approved[1]Confirmed
Permit / case numbers
LEGI-2023-0064[1]Confirmed
Planned floor area
556,700 sq ft[1]Confirmed

Building area proposed in the site plan.

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

Annual property tax
Not yet sourced

No county parcel or assessor records linked yet. County records are currently ingested for Loudoun County, VA and Maricopa County, AZ.

Size

Planned floor area
556,700 sq ft[1]Confirmed

Building area proposed in the site plan.

Floor area
Not yet sourced

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

  1. 2023[1]

    Loudoun County site plan LEGI-2023-0064 — Approved, 556,746 sq ft proposed.

All claims (provenance audit)

16
FieldValueSourceConfidenceAs ofStatus
NameProposed data center — LEGI-2023-0064[1] derivedConfirmed2026-09-27Shown
StatusPlanned[1] derivedConfirmed2026-09-27Shown
UtilityDominion Energyterritory 19876: VIRGINIA ELECTRIC & POWER CO (INVESTOR OWNED, DOMINION RESOURCE[2] derivedUnverified2022Shown
ISO / RTOPJMPJM INTERCONNECTION, LLC[3] derivedLikely—Shown
Balancing authorityPJM[2] derivedLikely—Shown
Nearest mapped substationAltair Switching Station (230 kV)way/1184373183[4] derivedLikely2026-09-28Shown
Distance to substation0.7 km[4] derivedLikely2026-09-28Shown
Highest-voltage line nearby500 kV[4] 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
Permitting statusSite plan LEGI-2023-0064: ApprovedApplication LEGI-2023-0064, zoning case —[1] Confirmed2026-09-27Shown
Permit / case numbersLEGI-2023-0064[1] Confirmed2026-09-27Shown
Planned floor area556,700 sq ft[1] Confirmed2026-09-27Shown
Permit / site plan filed2023[1] derivedConfirmed2026-09-27Shown