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Amazon IAD-128

Under constructionEst.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.HyperscaleBuildingSterling, Loudoun County, Virginia

Amazon IAD-128 is an under construction hyperscale in Sterling, Virginia. Operated or owned by Amazon Web Services. Current power: 55 MW (estimated). Verification: under construction. 9 cited sources.

Part of Amazon Web Services — Sterling, VA campus

50% profile completeness
26 claims from 10 sources
Last verified against sources: Oct 12, 2026
Newest dated evidence: Oct 12, 2026
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Cite this
Text
Datacenter Source. “Amazon IAD-128.” /facilities/amazon-iad-128-sterling-va. Data as of 2026-10-12. Accessed 2026-10-12.
BibTeX
@misc{datacentersource_amazon_iad_128_sterling_va_2026,
  title = {{Amazon IAD-128}},
  author = {{Datacenter Source}},
  year = {2026},
  howpublished = {\url{/facilities/amazon-iad-128-sterling-va}},
  note = {Data as of 2026-10-12; accessed 2026-10-12. 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
55 MW[1]
Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Likely
Planned capacity
Not yet sourced
Floor area
218,100 sq ft[2]
ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 2026.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
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: Beco Substation (230 kV) (nearest, unverified)

Power reality

Announced
No record
Interconnection request
No record
Contracted / approved
No record
Under construction
No record
Operational
55 MW[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.
Reported
  • ⚠ 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. PermittingOct 12, 2026
    Permit / site plan
    • Oct 12, 2026 · Permit / case BLDC-2024-055076[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 constructionOct 12, 2026
    Permit / site plan
    • Oct 12, 2026 · Reported status: under construction[2]
  3. EnergizationOct 12, 2026
    Community map
    • Oct 12, 2026 · Power in use reported: 55 MW[1]
  4. OperationalOct 12, 2026
    Community map
    • Oct 12, 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
    Amazon IAD-128
  2. substation
    Beco Substation (230 kV)[1]
    Proximity onlyUnverified
    Nearest mapped substation, 1.78 km away. Proximity does not establish that it serves the site.
  3. transmission
    230 kV line[1]
    Proximity onlyUnverified
    Highest-voltage line mapped within 2 km (1.74 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[5]
    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.

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 permits1

  • Air permit VA0000005110774170[9]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Dec 10, 2024.Dec 10, 2024
    80% Synthetic Minor Emissions · Operating · No Violation Identified · Programs: State Implementation Plan

    ECHO lists “AMAZON DATA SERVICES, INC. IAD-116 IAD-117” at 45781 MARIES ROAD, STERLING, 72 m from this facility's mapped location (matched by location; the permit name matches this facility or its companies).

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 & rates1

  • GS-5 rate class for customers demanding 25 MW or more[10]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Nov 25, 2025.Nov 25, 2025
    Dominion Energy · Virginia State Corporation Commission · Docket PUR-2025-00058 · Final order issued · effective Jan 1, 2027

    “the new GS-5 rate class will comprise customers demanding 25 megawatts or more. The new rate class will be effective beginning January 1, 2027.”

    Applies to Dominion Energy Virginia's service territory; the facility's utility is the most likely retail provider by location unless a source names it.

Location & imagery

Mapped outline
Coordinates
39.02304, -77.41698
Address
45781 Maries Road, 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 Oct 12, 2026.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
    Maries Tech Park II LLC(unreviewed)[2]
  2. 2. Owner / developer
    Not identified
  3. 3. Operator
    Amazon Web Services[1]Likely
  4. 4. Tenant / cloud
    Not identified
  5. 5. End customer / workload
    Not identified
Power supply
Utility:
Dominion Energy[3]Likely

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]Likely

Location falls inside this utility's retail service territory.

No tenants or end users identified in our sources yet.

Power (all fields)

Current facility power
55 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Likely
Estimated annual consumption
337 GWh/yr[4]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Speculativeestimated

55 MW × 8,760 h × 70% utilization.

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[5]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Likelyderived

Location falls inside this ISO/RTO footprint.

Balancing authority
PJM[3]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Likelyderived

Control area of the containing utility territory.

Nearest mapped substation
Beco 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
1.8 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
10.07¢/kWh[7]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Jul 2026.Confirmed

Virginia statewide average, July 2026.

State avg. commercial price
11.68¢/kWh[7]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Jul 2026.Confirmed

Virginia statewide average, July 2026.

Generation within 50 km
1.67 GW[8]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

75 EIA-reported plants within 50 km.

Generation queued in county
1.04 GW[6]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 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 infrastructureTypeDistanceVoltage / capacitySource
230 kV lineTransmission line1.74 km230 kV[1]
2165 · Virginia Electric & Power CompanyTransmission line1.79 km230 kV[1]
2143;2249Transmission line1.8 km230 kV[1]
2143;2207Transmission line1.85 km230 kV[1]
2081;2150 · Dominion EnergyTransmission line1.92 km230 kV[1]
Potomac Energy Center, LLC · Potomac Energy Center LLCPower plant (Natural Gas)11.7 km766 MW[8]
Montgomery County Resource Recovery · Covanta Montgomery, Inc.Power plant (Biomass)20 km54 MW[8]
Dickerson Power · Dickerson Power, LLCPower plant (Natural Gas)21.2 km299 MW[8]
Nih Cogeneration Facility · National Institutes of HealthPower plant (Natural Gas)28 km28 MW[8]
Covanta Alexandria/Arlington Energy · Covanta Alexandria/ArlingtonPower plant (Biomass)35.1 km29 MW[8]
Central Utility Plant At White Oak · GSA Metropolitan Service CenterPower plant (Natural Gas)37.6 km54 MW[8]
Covanta Fairfax Energy · Covanta Fairfax IncPower plant (Biomass)39.5 km98 MW[8]
Blake Solar Plant · Horus West Virginia 1, LLCPower plant (Solar)44.8 km80 MW[8]
Beco Substation · Dominion EnergySubstation1.78 km230 kV[1]
DTC substationSubstation1.94 km230 kV[1]
Paragon Park SubstationSubstation2.17 km230 kV[1]
Interconnection Substation · Dominion EnergySubstation2.78 km230 kV[1]
Largest queued generation in this countyFuelQueue statusMWSource
Loudoun 230 kVPJM AG2-285StorageIn study · proposed 2023-12150 MW[6]
Beaumeade 230 kVPJM AG2-287StorageIn study · proposed 2023-12150 MW[6]
New Road StoragePJM AE2-019StorageIA signed · proposed 2026-12120 MW[6]
Dulles SolarPJM AF1-147SolarIA signed · proposed 2023-12100 MW[6]
Roundtable 230 kVPJM AG2-307StorageIn study · proposed 2023-12100 MW[6]
Shelhorn 230 kVPJM AG2-323StorageIn study · proposed 2023-12100 MW[6]

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
BLDC-2024-055076[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 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

ParcelRecord ownerAcresZoning / useBuilding sq ftSource
030286764000
Loudoun County, VA
MARIES TECH PARK II LLC
Project: Tall Oaks
9.6IP (ZRTD-2017-0007) · Data Center218,112
under construction
[2]
Site area
9.6 acres[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 2026.Confirmed

Legal acreage of the parcel(s).

Zoning
IP[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 2026.Confirmed
Land use
Data Center[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 2026.Confirmed
Annual property tax
Not yet sourced

Size

Floor area
218,100 sq ft[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 2026.Confirmed

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

Building footprint
111,000 sq ft[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Likelyderived

Computed from the mapped OSM building outline.

Parcel / land records
MCPI 030286764000 (Loudoun County)[2]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Oct 12, 2026.Confirmed

What changed (last 3 years)

Follow this facility (RSS)
  • Status
    OperatingSep 27, 2026[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.→Under constructionSep 27, 2026[2]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

13

All claims (provenance audit)

26
FieldValueSourceConfidenceAs ofStatus
NameAmazon IAD-128way/1555352691 name=Amazon IAD-128[1] Likely2026-10-12Shown
StatusOperating[1] derivedUnverified2026-10-12Superseded / alternative
StatusUnder construction[2] derivedConfirmed2026-10-12Shown
Facility typeHyperscale[1] derivedUnverified2026-10-12Shown
Address45781 Maries Road, Sterling, VA 20166[1] Likely2026-10-12Shown
Property owner of recordMaries Tech Park II LLCMCPI 030286764000: MARIES TECH PARK II LLC[2] Confirmed2026-10-12Shown
OperatorAmazon Web Servicesoperator=Amazon Web Services[1] Likely2026-10-12Shown
UtilityDominion Energyterritory 19876: VIRGINIA ELECTRIC & POWER CO (INVESTOR OWNED, DOMINION RESOURCE[3] derivedLikely2022Shown
Current facility power55 MWinput:electricity=55 MW[1] Likely2026-10-12Shown
Estimated annual consumption337 GWh/yr[4] estimatedSpeculative2026-10-12Shown
ISO / RTOPJMPJM INTERCONNECTION, LLC[5] derivedLikely—Shown
Balancing authorityPJM[3] derivedLikely—Shown
Nearest mapped substationBeco Substation (230 kV)way/61699342[1] derivedLikely2026-09-28Shown
Distance to substation1.8 km[1] derivedLikely2026-09-28Shown
Highest-voltage line nearby230 kV[1] derivedLikely2026-09-28Shown
Generation queued in county1.04 GW[6] derivedConfirmed2026-10-12Shown
State avg. industrial price10.07¢/kWh[7] Confirmed2026-07Shown
State avg. commercial price11.68¢/kWh[7] Confirmed2026-07Shown
Generation within 50 km1.67 GW[8] derivedConfirmed202502Shown
Permit / case numbersBLDC-2024-055076[2] Confirmed2026-10-12Shown
Floor area218,100 sq ft[2] Confirmed2026-10-12Shown
Building footprint111,000 sq ft[1] derivedLikely2026-10-12Shown
Site area9.6 acres[2] Confirmed2026-10-12Shown
Parcel / land recordsMCPI 030286764000 (Loudoun County)[2] Confirmed2026-10-12Shown
ZoningIP[2] Confirmed2026-10-12Shown
Land useData Center[2] Confirmed2026-10-12Shown