# Sabey Data Centers Ashburn Building B

PJM data center · https://askthegrid.com/assets/facilities/sabey-data-centers-ashburn-building-b

Sabey Data Centers Ashburn Building B is a building data center in Ashburn, Loudoun County, VA. Sabey Data Centers is identified as the operator, and the facility is operating. It is identified as part of Sabey Ashburn Campus. Spatial service-territory evidence associates the site with Dominion Virginia Power (Dominion); the profile assigns the asset to PJM through that documented market role. Reported development, power, and commercial facts retain their source-specific facility, campus, building, or phase scope; the page does not collapse those values into a single implied load.

## Identity and location

- Operating status: operating
- Asset scope: building
- Location: 21745 Red Rum Drive, Ashburn, Loudoun County, VA
- Operator: Sabey Data Centers (exact asset) — https://sabeydatacenters.com/locations/ashburn-data-center
- Owner: Sabey Data Center Properties LLC (exact asset)
- Utility: Dominion Energy (exact asset) — https://www.dominionenergy.com/en/About/Delivering-Energy/Electric-Transmission-Access

## Power and grid context

- Backup generation: 2.25 MW · reported · exact asset — On-site generators sized at 2.25 MW with ~48 hour run time at peak load (Building B)
- Campus gross power: 85 MW · reported · campus — Campus-level gross power cited by operator (Sabey) for the Ashburn campus
- ISO/RTO: PJM
- Balancing authority: PJM Interconnection
- Electric utility: Dominion Virginia Power (Dominion)

## Development

- Site status: operating
- Gross floor area: 160,000 square feet
- Construction: Building B was completed and became fully operational around 2018‑2019, providing 22 MW of mission‑critical power and 160,000 sq ft of data‑hall space, with on‑site generators of 2.25 MW capacity and 48‑hour run‑time.

## Compute and operations

- Facility classes: colocation
- Workloads: colocation
- Operating context: A carrier‑neutral colocation data center offering 22 MW of power, 160 k sq ft of floor space, robust power, cooling, security, and connectivity.

## Sources

- [http://baxtel.com/data-center/aligned-ashburn](http://baxtel.com/data-center/aligned-ashburn)
- [Petition · Stop building more data centers in Ashburn - United States · Change.org](http://change.org/p/stop-building-more-data-centers-in-ashburn)
- [http://datacenter.fyi/public-record/amazon-data-services-inc-iad-12-iad-15-iad-16-iad--dad0396f](http://datacenter.fyi/public-record/amazon-data-services-inc-iad-12-iad-15-iad-16-iad--dad0396f)
- [http://datacentermap.com/usa/virginia/ashburn](http://datacentermap.com/usa/virginia/ashburn)
- [http://dominionenergy.com/en/Virginia/Large-Business-Services/Data-Center-Requests](http://dominionenergy.com/en/Virginia/Large-Business-Services/Data-Center-Requests)
- [http://loudoun.gov/2674/Utilities](http://loudoun.gov/2674/Utilities)
- [http://loudoun.gov/6222/Phase-2-Data-Center-Standards-Locations](http://loudoun.gov/6222/Phase-2-Data-Center-Standards-Locations)
- [http://loudoun.gov/datacenterstandards](http://loudoun.gov/datacenterstandards)
- [http://loudoun.gov/m/faq?cat=241](http://loudoun.gov/m/faq?cat=241)
- [http://marketplace.upstack.com/data-centers/ntt-ragingwire-data-center-ashburn-va3](http://marketplace.upstack.com/data-centers/ntt-ragingwire-data-center-ashburn-va3)
- [http://openei.org/wiki/RAPID/BulkTransmission/Virginia](http://openei.org/wiki/RAPID/BulkTransmission/Virginia)
- [http://pcrehomes.com/blog/virginia-data-center-boom-community-opposition-real-estate-2026](http://pcrehomes.com/blog/virginia-data-center-boom-community-opposition-real-estate-2026)
- [http://rmi.org/resources/amazon-dominion-virginia-power-reach-breakthrough-renewable-energy-agreement](http://rmi.org/resources/amazon-dominion-virginia-power-reach-breakthrough-renewable-energy-agreement)
- [http://sabeydatacenters.com/locations/ashburn-data-center](http://sabeydatacenters.com/locations/ashburn-data-center)
- [http://sabeydatacenters.com/news/sabey-breaks-ground-on-final-phase-of-ashburn-campus-expansion](http://sabeydatacenters.com/news/sabey-breaks-ground-on-final-phase-of-ashburn-campus-expansion)
- [http://vedp.org/incentive/data-center-retail-sales-use-tax-exemption](http://vedp.org/incentive/data-center-retail-sales-use-tax-exemption)
- [Data Center Investors Face Growing Risk From Local Opposition - Capstone DC](https://capstonedc.com/insights/data-center-investors-face-growing-risk-from-local-opposition/)
- [Sabey Data Centers SDC Ashburn Building B | 21745 Red ...](https://datacenterhawk.com/marketplace/providers/sabey-data-centers/21745-red-rum-drive/sdc-ashburn-building-b)
- [Sabey Intergate.Ashburn — Data Center - DC Hub](https://dchub.cloud/facilities/sabey-data-centers-sabey-intergateashburn-12517658)
- [Building B Data Center, Ashburn, Virginia | GoDataCenters](https://godatacenters.com/data-centers/virginia/ashburn/sdc-ashburn-building-b-c38c8398)
- [Sabey Data Centers Intergate Ashburn Building B](https://inflect.com/building/21745-red-rum-drive-ashburn/sabey-data-centers/datacenter/sabey-data-centers-intergate-ashburn-building-b)
- [W&OD Trail To Close In Ashburn For Dominion Electric ...](https://patch.com/virginia/ashburn/w-od-trail-close-ashburn-dominion-electric-line-work)
- [SDC Ashburn | Sabey](https://sabey.com/real-estate/ashburn)
- [SDC Ashburn](https://sabeydatacenters.com/locations/ashburn-data-center) — Sabey Data Centers
- [Construction Moving Along for Final Phase of… | Sabey Data Centers](https://sabeydatacenters.com/news/sabey-breaks-ground-on-final-phase-of-ashburn-campus-expansion) — Sabey Data Centers · 2025-06-25
- [Sabey Ashburn — Sabey Data Center, Ashburn VA | USDataMap](https://usdatamap.com/facility/sabey-ashburn-va-sab-2)
- [Report highlights community pushback stalling $64 billion ...](https://virginiamercury.com/2025/05/21/report-highlights-community-pushback-stalling-64-billion-in-data-center-development-nationwide/)
- [Intergate Ashburn, LLC — Loudoun County, VA | Groundwork](https://www.canonical.cc/labs/groundwork/site/intergate-ashburn-llc-loudoun/)
- [DCF Tours: Sabey Data Centers' SDC Ashburn, Data Center Alley, Virginia | Data Center Frontier](https://www.datacenterfrontier.com/colocation/article/33038547/dcf-tours-sabey-data-centers-sdc-ashburn-data-center-alley-virginia) — Data Center Frontier · 2024-03-12
- [Dominion: Virginia's Data Center Cluster Could Double in ...](https://www.datacenterfrontier.com/energy/article/33013010/dominion-virginias-data-center-cluster-could-double-in-size)
- [Sabey Data Centers: SDC Intergate Ashburn Building B](https://www.datacenters.com/sabey-sdc-intergate-ashburn-building-b) — DataCenter.com
- [Another Data Center Stopped by Local Opposition](https://www.hawthorngroup.com/energy-news/another-data-center-stopped-by-local-opposition/)

## Data quality

- Sources include operator-owned pages, trade listings, and news articles; operator pages may be biased, trade listings are secondary, and some news articles do not explicitly mention Building B.
- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.

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Canonical page: https://askthegrid.com/assets/facilities/sabey-data-centers-ashburn-building-b
Profile generated: 2026-09-04T14:28:32.838652Z
Source: Ask the Grid — https://askthegrid.com/