STACK Infrastructure NVA02 campus
STACK's Hornbaker Road campus near Manassas is listed at 420 MW of critical capacity in 10 buildings on about 200 acres, served by NOVEC through two onsite 300 MW substations. Also known as: NVA02 – Manassas.
Who is behind it
The record, newest first
STACK's location page (last updated April 2025) lists the campus at 420 MW across 10 buildings on 200 acres, with NOVEC power from two onsite substations. (STACK Infrastructure, April 21, 2025)
A data center market listing shows a 280,000 sq ft STACK building, NVA02D, at 9590 Hornbaker Road as commissioned, built in 2023. (datacenterHawk, Oct. 2026)
STACK bought 74 more acres for the campus, after a 125-acre start announced in 2020 and earlier additions of 25 acres (2021) and 60 acres (2022); DCD said the first phase was 72 MW in about 700,000 sq ft. (DatacenterDynamics, Dec. 13, 2022)
Conflicts and open questions
- STACK's page gives no street address or build-out stage; the Hornbaker Road location is from DCD and a market listing. Coordinates are approximate.
- Capacity figures differ: 420 MW in 10 buildings (company page) versus 250 MW and seven planned buildings (DCD, 2022). Acreage differs too: 200 acres (company) versus a higher total if every purchase DCD lists belongs to this campus (DCD does not say so for the 60-acre buy).
- Operating status rests on a commercial market listing, not a primary record.
- it_mw uses the company's 'critical capacity' figure.
The full record
- Status note
- STACK's page does not state build-out stage; a market listing shows at least one building (NVA02D) commissioned in 2023.
- Power note
- STACK lists 420 MW of critical capacity for the campus; in 2022 DCD described the campus as 250 MW after a 74-acre purchase it said added 100 MW.
- Evidence
- Primary public records
- Size class
- 50 MW or more (tracker scope)