Cholla
BrownfieldJoseph City, Navajo, Arizona · Arizona Public Service Co
Cholla is a coal plant in Joseph City, Navajo, Arizona, retired 2020-12-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 703 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Nearby datacenter candidate sites
Scored candidate sites near Cholla, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| CHOLLA | Substation-Adjacent | AZ | Navajo County | 500 kV | 1,000 MW | 5.7 yrs | 68.4 |
| SUGARLOAF | Substation-Adjacent | AZ | Navajo County | 500 kV | 1,000 MW | 5.7 yrs | 66.5 |
| UNKNOWN300020 | Substation-Adjacent | AZ | Navajo County | 345 kV | 600 MW | 3.5 yrs | 64.7 |
| Greenfield (FOUR CORNERS - UNKNOWN307401) | Greenfield | AZ | Navajo County | 345 kV | 600 MW | 3.5 yrs | 59.9 |
| Greenfield (FOUR CORNERS - UNKNOWN307401) | Greenfield | AZ | Navajo County | 345 kV | 600 MW | 3.5 yrs | 59.3 |
| Greenfield (SUGARLOAF - CHOLLA) | Greenfield | AZ | Navajo County | 500 kV | 1,000 MW | 5.7 yrs | 59.0 |
| Greenfield (SILVER KING - CORONADO) | Greenfield | AZ | Navajo County | 500 kV | 1,000 MW | 5.7 yrs | 58.9 |
| Greenfield (FOUR CORNERS - UNKNOWN307401) | Greenfield | AZ | Navajo County | 345 kV | 600 MW | 3.5 yrs | 58.9 |
See all datacenter sites in Arizona →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Cholla, Joseph City, Navajo, Arizona. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.