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Microsoft Data Center data center, Loudoun County, VA

Loudoun County, VA

Source: OpenStreetMap

Microsoft Data Center data center in Loudoun County, VA is an operating facility, operated by Microsoft Data Center LLC and ultimately owned by Microsoft Corporation. DataCentersExposed has documented a 1,475,309 sq ft footprint at this site.

Reporting by · Updated Jun 16, 2026

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Real parent
Microsoft Corporation
Operator
Microsoft Data Center LLC
Est. capacity
~290-600 MW
Footprint
1,475,309 sq ft
Interconnection
~37 MW
Utility
Northern Virginia Elec Coop
Grid
PJM
Attribution & capacity confidence:mediumprimary source
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

Microsoft data center

Operator chain

In the news

source: GDELT

Tax breaks & subsidies

source: Good Jobs First / GASB 77

These tax breaks are recorded to Microsoft Corporation (the operator/parent) and may cover this or other sites — no state names the recipient at the facility level.

Dollar value not disclosed for these records.
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2024 · term — yr · source
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2023 · term — yr · source
  • Qualified Data Center Sales Tax Exemption$0
    State of Wisconsin · granted 2023 · term — yr · source
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2022 · term — yr · source
  • Texas Qualifying Data Center Exemption$0
    State of Texas · granted 2021 · term — yr · source
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2015 · term — yr · source
  • Texas Qualifying Data Center Exemption$0
    State of Texas · granted 2013 · term — yr · source
  • Texas Qualifying Data Center Exemption$0
    State of Texas · granted 2013 · term — yr · source
Statewide cost of this incentive

Virginia reported $1B in Data Center Retail Sales and Use Tax Exemption (Va. Code § 58.1-609.3(18)) for FY2024 (Virginia Joint Legislative Audit and Review Commission (JLARC) / Weldon Cooper Center). Program-wide, not attributable to this site.

source · All Virginia subsidies →

Water use

No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.

EPA permits & violations

source: EPA ECHO

No reported violations as of last sync.

Environmental permits

source: Permit register
  • Clean Air Act permitted sourceVA0000005115374236
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111753086
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111752820
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111753072
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111752973
    NAICS 221118 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111752949
    NAICS 221112 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111753071
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111700071
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005110774192
    NAICS 518210; ECHO compliance status: No Violation Identified
  • Clean Air Act permitted sourceVA0000005111752903
    NAICS 518210; ECHO compliance status: No Violation Identified
  • VA DEQ air permit (minor NSR)52973
    Diesel backup-generator air permit. Program: mNSR. Reg. 52973.
  • VA DEQ air permit (minor NSR)53086
    Diesel backup-generator air permit. Program: mNSR. Reg. 53086.
  • VA DEQ air permit (minor NSR)74236
    Diesel backup-generator air permit. Program: mNSR. Reg. 74236.
  • VA DEQ air permit — Title V (major source)21527
    Diesel backup-generator air permit. Program: Title V. Reg. 21527. Title V = major air-pollution source.
  • VA DEQ air permit (minor NSR)74237
    Diesel backup-generator air permit. Program: mNSR. Reg. 74237.
  • VA DEQ air permit (minor NSR)52949
    Diesel backup-generator air permit. Program: mNSR. Reg. 52949.
  • VA DEQ air permit (minor NSR)52903
    Diesel backup-generator air permit. Program: mNSR. Reg. 52903.
  • VA DEQ air permit (minor NSR)52820
    Diesel backup-generator air permit. Program: mNSR. Reg. 52820.
  • VA DEQ air permit (minor NSR)53072
    Diesel backup-generator air permit. Program: mNSR. Reg. 53072.
  • VA DEQ air permit (minor NSR)53071
    Diesel backup-generator air permit. Program: mNSR. Reg. 53071.

What this site costs the grid

source: PJM RPM auction reports
Dominion (Virginia / NC) · 2027/28 auction
$333 /MW-day
Peaked at $444/MW-day in 2025/26 — 1.65× the rest of PJM

PJM's capacity auction sets a $/MW-day price that utilities pass on to every household and business in the zone. This site sits in PJM's DOM pricing zone, where soaring data-center demand is a documented driver. See the full zone-by-zone breakdown →

This site's capacity-market cost (estimated)
$35.2M to $72.9M/yr

An estimated ~290 to 600 MW of load at the zone's $333/MW-day, annualized — the capacity charge a load this size carries at the current auction price. Estimated from the building footprint at 200 to 400 W/ft² (the typical range for modern data centers). A rough order-of-magnitude figure, not a metered or permitted capacity.

Separately, a typical home in this zone pays an estimated $4 to $10/mo more on the capacity portion of its bill that PJM's market monitor attributes to data-center demand. See your address's full impact →

Nearest school

source: HIFLD / NCES

The nearest public school, Arcola Elementary in Aldie, is 0.9 mi from this site (810 students).

Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).

Hearings timeline

No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.