Data centers in Santa Clara County, CA
Everything on file with the regulator, added up. Every figure links to the filing it came from.
29 permitted facilities.
These facilities hold active air permits in EPA's national registry. Groundwork has not yet read CA's permit documents, so generator counts and permitted emissions show as pending here — unlike Virginia, where every figure is read from the permit itself.
What this does — and doesn't — mean.
These are emergency backup generators. They are permitted to run during grid outages and for routine testing — typically tens of hours a year, not continuously. A permit is a ceiling on what a site may emit, not a measurement of what it does emit.
A permit also is not a building. An issued permit establishes approval; it does not establish that anything is built, energised or running.
No single permit discloses the total permitted in this county. That number exists only because 29 separately-published filings were added together. Each one, read alone, looks routine.
Every tracked site in Santa Clara County.
10 operators of record · 5 in a FEMA Special Flood Hazard Area.
Groundwork has this state’s facilities from EPA’s national air-permit registry, but has not yet read the state’s own permit documents. Generator counts and permitted emissions therefore show as pending.
Spotted an error?
Fuzzy-matched fields are labelled as such and some will be wrong. Open an issue — corrections are tracked in public and noted on the page.