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Data Center Registry

Cosner Technology Campus

Massaponax, Spotsylvania County, Virginia · All 54 Amazon Web Services sites · Every Amazon case on our tracker

Under constructionMixed receptionRecord updated August 26, 2026

Cosner Technology Campus is a data center under construction in Massaponax, Virginia (Spotsylvania County), operated by Amazon Web Services. The public record puts it at announced June 2023, 329 acres. It has documented support and documented opposition on record.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Under construction

Operator
Amazon Web Services
Facility type
Data center
Location
Massaponax, Spotsylvania County, VA
Coordinates
38.2047, -77.4762 (approximate)
Power capacity
Not established from a public source
Land
329 acres
Investment
Not established from a public source
Announced
June 2023
Utility
Rappahannock Electric Co-op
Cooling
Not established from a public source
Water use
Not established from a public source
Jobs
Not established from a public source
Public subsidy
Not established from a public source
Community reception
Mixed reception
Source confidence
Confirmed by multiple independent sources or official documentation

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

  1. July 17, 2026
    Under construction
    329 acres in Massaponax, ~1.9M sq ft; one of four AWS Spotsylvania/Caroline campuses. Source: Data Center Dynamics

Opposition and litigation at this site

Partly. Both documented support and documented opposition to Cosner Technology Campus in Massaponax, Spotsylvania County, Virginia appear in the record, with no clear majority position. Covered by the same Oct 10, 2023 5-2 Board of Supervisors package vote as Carter's Store (case ST23-0031, 1.9M sq ft); the two dissenting supervisors objected to unwritten agreements, not the project itself.

How the community has taken it

Reception is a sourced signal, not an editorial judgment: mixed reception means documented support and documented opposition both exist with no clear majority position on record.

Covered by the same Oct 10, 2023 5-2 Board of Supervisors package vote as Carter's Store (case ST23-0031, 1.9M sq ft); the two dissenting supervisors objected to unwritten agreements, not the project itself.

Source

Notes on the record

329 acres in Massaponax, ~1.9M sq ft; one of four AWS Spotsylvania/Caroline campuses (Summit Crossing, Carter's Store, Cosner, Orrock). Spotsylvania case ST23-0031.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

  • Power capacity in megawatts
  • Cooling method and water use
  • Tax abatements or other public subsidy
  • Permanent jobs promised
Which document closes each gap
Power capacity in megawatts
The utility's large load service agreement, the interconnection request in the grid operator's queue, or the electrical site plan in the permit file.
Cooling method and water use
The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.
Tax abatements or other public subsidy
The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
Permanent jobs promised
The economic development application or incentive agreement, which usually states a job commitment and a clawback.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

Questions people ask about this site

Is there opposition to the Cosner Technology Campus in Massaponax?

Partly. Both documented support and documented opposition to Cosner Technology Campus in Massaponax, Spotsylvania County, Virginia appear in the record, with no clear majority position. Covered by the same Oct 10, 2023 5-2 Board of Supervisors package vote as Carter's Store (case ST23-0031, 1.9M sq ft); the two dissenting supervisors objected to unwritten agreements, not the project itself.

Has anyone filed a lawsuit over the Cosner Technology Campus?

No lawsuit over Cosner Technology Campus appears in the record we track as of August 26, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does Cosner Technology Campus use?

No water withdrawal figure for Cosner Technology Campus is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.

Who operates Cosner Technology Campus, and how big is it?

Amazon Web Services is the operator on record. We hold 54 sites for that company across the registry. No capacity figure is on record for this site. The site is recorded at 329 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "Cosner Technology Campus," updated August 26, 2026, https://suedatacenters.org/data-centers/aws-cosner-technology-campus-massaponax-va.

Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/aws-cosner-technology-campus-massaponax-va, retrieved September 14, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

  1. 1.Amazon files for four data center campuses in Spotsylvania and Caroline Counties · Data Center Dynamics · retrieved July 17, 2026
  2. 2.HIFLD Electric Retail Service Territories (ORNL/DOE-CESER, 2023-08 vintage) · Oak Ridge National Laboratory (ORNL) / HIFLD · retrieved July 23, 2026
  3. 3.Data Center Frontier, Amazon Plans Major Data Center Expansion in Virginia's Spotsylvania County · retrieved July 25, 2026
  4. 4.Fredericksburg Free Press, "WATCH: Rezoning for data centers approved in Spotsylvania" (Oct 13, 2023) · retrieved July 26, 2026
  5. 5.VA DEQ air permit 74288-2, Amazon Data Services IAD450 Cosner Tech Campus (issued 2026-06-01) · Virginia Department of Environmental Quality · retrieved July 29, 2026
  6. 6.Submission provenance (not controlling source), Public Evidence record for permit 74288-2 · Public Evidence Project · retrieved July 30, 2026
  7. 7.DEQ issued air pollution violations on Spotsylvania data center campus in 2025 · Fredericksburg Free Press · retrieved August 26, 2026

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