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Air Permits & Generators
See the state air-permit record behind Loudoun’s data centers. Search DEQ registrations, backup-generator records and permit documents.
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Countywide snapshot, unaffected by the filters below. Generator total is PEC-derived from DEQ permit documents, summed once per registration with an unambiguous count. Tier 4 information includes explicit zero counts. Air-site status is separate from county construction status.
What these records can tell you
A DEQ air permit authorizes equipment subject to its terms. It does not prove equipment is installed, currently running, or that a campus is complete. Reported emissions come from an inventory, with their own reporting year. Permit limits describe authorized ceilings and conditions; they are not actual emissions or a local air-quality reading.
Missing generator counts and inventory rows stay unknown. Geographic proximity does not establish that a permit belongs to a campus. See the matching rules and limitations, or download the data-quality review queue and permit-link check report.
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Meetings & Public Input
Find upcoming data-center hearings, open houses, transmission proceedings and participation deadlines. Filing dates remain in the separate construction calendar.
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