# Digital Realty ACC2

PJM data center · https://askthegrid.com/assets/facilities/digital-realty-acc2

Digital Realty ACC2 is a building data center in Ashburn, Loudoun County, VA. Digital Realty is identified as the operator, and the facility is operating. Spatial service-territory evidence associates the site with Dominion Virginia Power; 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: 44490 Chilum Place, Ashburn, Loudoun County, VA
- Operator: Digital Realty (exact asset) — https://www.digitalrealty.com/

## Power and grid context

- Critical it load: 13.987 MW · operating · exact asset — IT Power Capacity (estimated) 13.987 MW
- Utility service: 40 MW · operating · exact asset — Total power capacity 40 MW (mid-size)
- Utility service: 2.2 MW · operating · exact asset — Maximum power capacity 2.2 MW as advertised
- ISO/RTO: PJM Interconnection
- Balancing authority: PJM Interconnection
- Electric utility: Dominion Virginia Power

## Development

- Site status: operational
- Site area: 9.4 acres
- Gross floor area: 87,000 square feet
- Buildings: 1
- Construction: Purpose-built, single-story/one-level purpose-built data center (ACC2) at 44490 Chilum Place in Ashburn, VA developed by Blue Sling ACC 2 LLC / Digital Realty; building size reported in sources as ~87,000 sq ft (lettable/total). The facility includes two contiguous computer rooms of 19,600 sq ft each and raised-floor data center space available of 39,200 sq ft (entire building). Building has dedicated 34.5 kV feeds and on-site generator capacity (four 2 MW engine generators) and is described as operational/commissioned in sources listing operator as Digital Realty. Some sources list the site as under construction at times; however the weight of evidence in the provided corpus indicates the asset is operating/commissioned and marketed for colocation space.

## Compute and operations

- Facility classes: colocation
- Operating context: Purpose built facility designed to meet customer colocation needs

## Sources

- [44490 Chilum (ACC2): Digital Realty Data Center](http://baxtel.com/data-center/44490-chilum-acc2-digital-realty)
- [http://datacenter.fyi/public-record/44490-chilum-pl-ced625b6](http://datacenter.fyi/public-record/44490-chilum-pl-ced625b6)
- [http://datacenter.fyi/public-record/centersquare-2fd0713b](http://datacenter.fyi/public-record/centersquare-2fd0713b)
- [http://datacenterhawk.com/marketplace/providers/digital-realty/44490-chilum-place/acc-2](http://datacenterhawk.com/marketplace/providers/digital-realty/44490-chilum-place/acc-2)
- [http://datacentermap.com/usa/virginia/ashburn/44461-chilum-place/specs](http://datacentermap.com/usa/virginia/ashburn/44461-chilum-place/specs)
- [http://datacentermap.com/usa/virginia/ashburn/44490-chillum-acc2/specs](http://datacentermap.com/usa/virginia/ashburn/44490-chillum-acc2/specs)
- [http://datacenters.com/centersquare-iad1-b-sterling](http://datacenters.com/centersquare-iad1-b-sterling)
- [http://dchub.cloud/facilities/digital-realty-digital-realty-iad41-building-p-79fd98d9](http://dchub.cloud/facilities/digital-realty-digital-realty-iad41-building-p-79fd98d9)
- [http://directory-service-090921371925-us-west-2-prod.s3-us-west-2.amazonaws.com/FacilityPDF/orgUpload/470.pdf](http://directory-service-090921371925-us-west-2-prod.s3-us-west-2.amazonaws.com/FacilityPDF/orgUpload/470.pdf)
- [http://go2.digitalrealty.com/rs/087-YZJ-646/images/DS_Digital_Realty_2311_ACC6_Property_Factsheet_EN.pdf](http://go2.digitalrealty.com/rs/087-YZJ-646/images/DS_Digital_Realty_2311_ACC6_Property_Factsheet_EN.pdf)
- [http://mapletreeindustrialtrust.com/property/44490-chilum-place-ashburn](http://mapletreeindustrialtrust.com/property/44490-chilum-place-ashburn)
- [http://marketplace.upstack.com/data-centers/digital-realty-ashburn-acc2](http://marketplace.upstack.com/data-centers/digital-realty-ashburn-acc2)
- [http://openei.org/wiki/RAPID/BulkTransmission/Virginia](http://openei.org/wiki/RAPID/BulkTransmission/Virginia)
- [44490 Chilum (ACC2): Digital Realty Data Center](https://baxtel.com/data-center/44490-chilum-acc2-digital-realty)
- [Acc2 (Rhino), Ashburn - computecompute.org](https://computecompute.org/us/va/loudoun/acc2-rhino)
- [Digital Realty ACC 2 | 44490 Chilum Place, Northern Virginia](https://datacenterhawk.com/marketplace/providers/digital-realty/44490-chilum-place/acc-2) — DatacenterHawk (market directory)
- [September 16, 2025 BOARD OF SUPERVISORS ...](https://loudoun.granicus.com/MetaViewer.php?view_id=89&clip_id=8024&meta_id=268766)
- [Digital Realty ACC2 Map - Building - Loudoun County, Virginia, USA](https://mapcarta.com/W1543931282)
- [Digital Realty Ashburn ACC2: 40 MW data center in Loudoun, VA | Data Center Tracker](https://morethanjustparks.com/data-center-tracker/digital-realty-ashburn-acc2-va--dbb90e17-9c59-4a6c-bc64-52248b56cb83)
- [Virginia Tax Exemptions for Data Centers – January 2, 2026](https://rga.lis.virginia.gov/Published/2026/RD40/PDF)
- [Digital Realty IAD (44490 Chilum) — Ashburn, VA, United States | Data Center List](https://www.datacenterslist.com/data-centers/digital-realty-iad-44490-chilum-ashburn)
- [How Digital Realty Tracks Its Sustainability Progress](https://www.digitalrealty.com/resources/blog/how-digital-realty-tracks-its-sustainability-progress)
- [Phase 2: Data Center Standards & Locations  | Loudoun County, VA - Official Website](https://www.loudoun.gov/6222/Phase-2-Data-Center-Standards-Locations)
- [department of building and development](https://www.loudoun.gov/DocumentCenter/View/118522/Building-Permits-Issued-2016-02February-1-15th?bidId=)
- [Data Center Standards & Locations](https://www.loudoun.gov/datacenterstandards)
- [Digital Realty IAD (44490 Chilum)](https://www.peeringdb.com/fac/4755) — PeeringDB / facility record · 2025-09-26
- [Exhibit](https://www.sec.gov/Archives/edgar/data/1407739/000140773917000044/dft_q4x12312016xex1033.htm) — SEC filing (exhibit)

## Data quality

- Most available evidence for this exact asset (Digital Realty ACC2, 44490 Chilum Place) comes from data-center directories, registry entries, and one SEC exhibit that names the ACC2 asset and address. I did not find local news stories (newspaper or broadcast) or formal community benefit agreements that explicitly reference ACC2 by address or unique project name.
- Loudoun County has active county-wide data-center public-hearing and standards processes (2024–2025) that affect sites in Ashburn generally, but the county sources reviewed did not mention ACC2 / 44490 Chilum Place by name.
- 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/digital-realty-acc2
Profile generated: 2026-09-04T14:28:32.838652Z
Source: Ask the Grid — https://askthegrid.com/