STACK Stafford Technology Campus (STC)

STACK's Stafford Technology Campus (STC) sits on 500 acres in Stafford County, Virginia, roughly 40 miles south of the core Data Center Alley cluster in Loudoun County, where land and grid-interconnection queues have become the tightest constraint in the market. STACK frames the site around that overflow: four sub-campuses drawing on six dedicated 300 MW substations, adding up to a stated 1.1 GW of total capacity — among the largest single-site figures the operator discloses anywhere in its global portfolio. The company's page for STC emphasizes land, power and community engagement — including a dedicated public-liaison contact for the surrounding area — over a finished building count, and it does not disclose floor space, cooling design, Uptime Tier certification, ISO certification or a year-opened date. Given the phased, multi-substation buildout the page describes, STC reads as a capacity commitment still being energized in stages rather than a single delivered facility.