Amazon Data Services IAD-667 to IAD-671 Data Center Campus
Approved · 42590 Patriot Park Drive, Leesburg, VA
Amazon Data Services IAD-667 to IAD-671 is a five-building Amazon data center campus in Leesburg, Loudoun County, at 20575 and 20335 Celtic Park Drive and 42367, 42590 and 42630 Patriot Park Drive. Virginia DEQ approved air permit 74301 on March 12, 2025 for 166 Caterpillar 3516E non-emergency generators rated 2,750 ekW each, fitted with SCR and catalyzed particulate filters, plus five 1,000 ekW emergency units. The permit allows the emergency units to run during ISO-declared grid emergencies.
Overview
- Campus power
- Not disclosed
- No exact-site MW figure in cited sources.
- Status
- Approved
- Approved campus
- IT floor area
- Not disclosed
- Campus
- Compute profile
- Hyperscale · Cloud
- Project scope
- Campus at 42590 Patriot Park Drive, Leesburg, VA.
- Power and grid
Power and grid
- Backup generation
- 166 Caterpillar 3516E non-emergency diesel gen-sets rated 2,750 ekW each with SCR and catalyzed DPF, five 1,000 ekW Caterpillar C32 emergency gen-sets, and two 2,000 ekW 3516C transitory units
- Grid flexibility
- The air permit lets the emergency gen-sets run during an ISO-declared emergency, including capacity deficiency conditions.
Facility and development
- Facility class
- Hyperscale · Cloud
- Air permits
- Virginia DEQ minor NSR permit, Registration No. 74301, approved March 12, 2025
- Emissions
- NOx from the 166 non-emergency gen-sets is controlled by closed-loop selective catalytic reduction, and particulate, CO and VOC by catalyzed diesel particulate filters.
- Permits and dockets
- Virginia DEQ air permit Registration No. 74301