# Amazon Cosner Tech Campus Data Center

PJM data center · https://askthegrid.com/assets/facilities/amazon-cosner-tech-campus-data-center--grid-load-b79caf573b1b85b3

The Cosner Tech Campus is an Amazon Data Services data center campus on Massaponax Church Road in Spotsylvania County, Virginia, near Fredericksburg. The first phase of two buildings on 110 acres is under construction, and a second phase of five buildings is proposed. Amazon's federal permit application says the campus is to provide a minimum of 450 MW of data center capacity by 2029. Rappahannock Electric Cooperative has submitted a PJM delivery-point request for a new Cosner substation with a total expected capacity of 300 MW, and backup power is permitted as diesel generator sets.

## Identity and location

- Operating status: under_construction
- Asset scope: campus
- Location: 3901 Massaponax Church Road, Fredericksburg, Spotsylvania County, VA
- Developer: Amazon Data Services, Inc. (exact asset)

## Power and grid context

- Reported unspecified: 450+ MW · target · target 2029 · exact asset — Stated overall purpose of the campus in the federal permit application; the source does not say whether this is IT or gross facility power
- Interconnection request: 300 MW · requested · target 2027 · exact asset — Delivery-point request by Rappahannock Electric Cooperative for a new Cosner substation serving a data center in Spotsylvania County; requested in-service date, not energized capacity
- ISO/RTO: PJM
- Electric utility: Rappahannock Electric Cooperative
- Point of interconnection: Two new 230 kV lines extended from Lee’s Hill to Cosner
- Substation: Two substations planned on the Cosner site
- Queue IDs: DOM-2025-0083

## Development

- Construction: Rezoning approved for a 1.9 million square foot data center campus on approximately 329 acres

## Sources

- [DEQ issued air pollution violations on Spotsylvania data center campus in 2025 - Fredericksburg Free Press](https://www.fredericksburgfreepress.com/2026/06/04/deq-issued-air-pollution-violations-on-spotsylvania-data-center-campus-in-2025/)
- [Access Denied](https://www.deq.virginia.gov/home/showpublisheddocument/36613/639168592121270000)
- [https://ddrqacl1jpsyp.cloudfront.net/wp-content/uploads/2026/06/04144256/ADS-Cosners-Corner-DEQ-Violation.pdf](https://ddrqacl1jpsyp.cloudfront.net/wp-content/uploads/2026/06/04144256/ADS-Cosners-Corner-DEQ-Violation.pdf)
- [Access Denied](https://www.nao.usace.army.mil/Media/Public-Notices/Article/4018043/nao-2023-01952-amazon-tech-park-spotsylvania-county-virginia/)
- [www.pjm.com](https://www.pjm.com/-/media/DotCom/committees-groups/committees/teac/2025/20251208/20251208-item-10---dom-supplemental-projects.pdf)
- [Public Liaison Contact Information for Cases | Spotsylvania County, VA](https://www.spotsylvania.va.us/2658/Public-Liaison-Contact-Information-for-D)
- [www.pjm.com](https://www.pjm.com/-/media/DotCom/committees-groups/committees/teac/2026/20261006/20261006-informational-only---dominion-local-plan-submission-of-the-supplemental-projects-2026-.pdf)
- [How Much Water Have Local Governments Promised to Data Center Companies?](https://www.fxbgadvance.com/p/how-much-water-have-local-governments)
- [FAQs - CivicPlus.CMS.FAQ](https://www.spotsylvania.va.us/m/faq?cat=75)
- [One Million Hours Down ... - FXBG Advance](https://www.fxbgadvance.com/p/one-million-hours-down-a-million)
- [https://gwregion.org/wp-content/uploads/OEIR-Review-101024.pdf](https://gwregion.org/wp-content/uploads/OEIR-Review-101024.pdf)

---

Canonical page: https://askthegrid.com/assets/facilities/amazon-cosner-tech-campus-data-center--grid-load-b79caf573b1b85b3
Profile generated: 2026-11-02T18:55:16.318538Z
Source: Ask the Grid — https://askthegrid.com/