Brownfield Datacenter Sites in Arizona
At a glance
Previously developed land with real or perceived environmental contamination. Brownfields trade remediation overhead for existing utility hookups, infill locations near fiber, and redevelopment incentives.
Top brownfield sites in Arizona
| Site | Type | County | Former use | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| Copper Crossing Energy and Research Cent | Brownfield | Pinal County | gas | 69 kV | 1,779 MW | 3.5 yrs | 69.5 |
| Tucson International Airport Area | Brownfield | Pima | superfund | 230 kV | 3 MW | 3.5 yrs | 62.9 |
| Williams Air Force Base | Brownfield | Maricopa | superfund | 69 kV | 2 MW | 3.5 yrs | 62.4 |
| Crosscut | Brownfield | Maricopa County | gas | 69 kV | 30 MW | 3.5 yrs | 60.3 |
| Desert Star Solar Plant | Brownfield | Maricopa | landfill | 230 kV | 10 MW | 3.5 yrs | 59.9 |
| Tri Cities | Brownfield | Maricopa County | gas | 69 kV | 5 MW | 3.5 yrs | 59.4 |
| Gila Bend Power Generation Station | Brownfield | Maricopa County | gas | 230 kV | 900 MW | 3.5 yrs | 54.9 |
| Ajo Solar Project | Brownfield | Pima | mine | 14 kV | 5 MW | 3.5 yrs | 53.3 |
| Apache Powder Canopy | Brownfield | Cochise | superfund | 115 kV | 0 MW | 3.5 yrs | 49.4 |
| Tuba City Disposal Green Remediation | Brownfield | Coconino County | brownfield | — | 0 MW | 3.5 yrs | 46.2 |
| Irving | Brownfield | Yavapai County | hydro | — | 2 MW | 3.5 yrs | 45.9 |
| Childs | Brownfield | Yavapai County | hydro | — | 5 MW | 3.5 yrs | 45.0 |
How does Arizona compare with other states for brownfield sites?
With 12 sites, Arizona ranks 21st of the 49 states that have any brownfield candidate sites. California leads with 103. Nationally, brownfield sites average 57.5/100 DC Readiness, above the 53.0 average across all site types. Across every site type, Arizona averages 48.5, the 49th-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 3.5 years.
Where are the highest-scoring brownfield sites in Arizona?
The top 12 range from 69.5 to 45.0 on the 0–100 DC Readiness Score. They are concentrated in Maricopa (5), Pima (2) and Yavapai County (2). By grid region, 12 are in WECC.
County pages: Maricopa · Pima · Yavapai County · Pinal County
What power, fiber and flood exposure do these brownfield sites have?
Of the top 12 brownfield sites in Arizona, 9 have a recorded nearest-substation voltage, with a median of 69 kV; for 3 that substation is rated 230 kV or higher. Their counties have a median of 13 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 45 km. The median interconnection-queue wait in their markets is 3.5 years. 2 of the 12 with a mapped FEMA flood zone sit in a high-risk (A or V) zone.
Frequently asked questions
How many brownfield datacenter sites are in Arizona?
GridCensus catalogs 12 brownfield datacenter candidate sites in Arizona, 2% of the national total for this type (21st of 49 states).
What is a brownfield datacenter site?
Previously developed land with real or perceived environmental contamination. Brownfields trade remediation overhead for existing utility hookups, infill locations near fiber, and redevelopment incentives.
What is the best brownfield datacenter site in Arizona?
By DC Readiness Score, Copper Crossing Energy and Research Cent in Pinal County ranks first at 69.5/100, followed by Tucson International Airport Area in Pima at 62.9.
Which Arizona counties have the best brownfield sites?
The top 12 brownfield sites in Arizona are concentrated in Maricopa (5), Pima (2) and Yavapai County (2).
How does Arizona score for datacenters overall?
All 3,816 scored sites in Arizona average 48.5/100 DC Readiness, the 49th-highest of 52 states, against a national average of 53.0.
More on brownfield sites and Arizona
Brownfield sites in other states
- Brownfield sites in California· 103 sites
- Brownfield sites in New Jersey· 52 sites
- Brownfield sites in New York· 48 sites
- Brownfield sites in Massachusetts· 44 sites
- Brownfield sites in Iowa· 38 sites
- Brownfield sites in Illinois· 33 sites
- Brownfield sites in Texas· 30 sites
- Brownfield sites in Ohio· 29 sites
Dataset updated . Screening estimates derived from public data sources.
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Brownfield datacenter sites in Arizona”, https://gridcensus.com/site-types/brownfield/arizona (data as of November 12, 2026).
Go deeper than the public screen
Every site and score for Brownfield sites in Arizona is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.