Data centers in Maricopa County, AZ
Everything on file with the regulator, added up. Every figure links to the filing it came from.
8 permitted facilities.
These facilities hold active air permits in EPA's national registry. Groundwork has not yet read AZ'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.
None of the 8 sites here that Groundwork could locate sits in a FEMA Special Flood Hazard Area.
No single permit discloses the total permitted in this county. That number exists only because 8 separately-published filings were added together. Each one, read alone, looks routine.
Every tracked site in Maricopa County.
| Site | Operator | Permits | Generators | NOx t/yr | Flood zone |
|---|---|---|---|---|---|
| APS - ALIGNED ENERGY DATA CENTER | Aligned Data Centers | — | — | — | Zone X |
| COMPASS DATACENTERS PHX I | Compass Datacenters | — | — | — | Zone X |
| COMPASS DATACENTERS PHX II | Compass Datacenters | — | — | — | Zone X |
| CYRUSONE - CHANDLER | CyrusOne | — | — | — | Zone X |
| CYRUSONE - MESA | CyrusOne | — | — | — | Zone X |
| DIGITAL REALTY TRUST CHANDLER | Digital Realty | — | — | — | Zone X |
| PHOENIX DATA CENTER | — | — | — | — | Zone X |
| QTS GLENDALE I | QTS | — | — | — | Zone X |
5 operators of record · 8 of 8 located sites draw from a basin WRI rates high or extremely high for water stress.
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.