Greenfield Datacenter Sites in Arizona
At a glance
Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
Top greenfield sites in Arizona
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| EC Near Crosscut | Greenfield | Maricopa | — | — | 3.5 yrs | 63.2 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 62.9 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 62.8 |
| OZ Pima | Greenfield | Pima | — | — | 3.5 yrs | 62.8 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 62.6 |
| EC Near Crosscut | Greenfield | Maricopa | — | — | 3.5 yrs | 62.6 |
| EC Near Crosscut | Greenfield | Maricopa | — | — | 3.5 yrs | 62.4 |
| EC Near Ocotillo | Greenfield | Maricopa | — | — | 3.5 yrs | 62.4 |
| OZ Pima | Greenfield | Pima | — | — | 3.5 yrs | 62.4 |
| EC Near Ocotillo | Greenfield | Maricopa | — | — | 3.5 yrs | 62.3 |
| EC Near West Phoenix | Greenfield | Maricopa | — | — | 3.5 yrs | 62.2 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 62.2 |
| EC Near West Phoenix | Greenfield | Maricopa | — | — | 3.5 yrs | 62.2 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 62.1 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 62.1 |
| EC Near Crosscut | Greenfield | Maricopa | — | — | 3.5 yrs | 62.1 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 61.9 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 61.9 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 61.9 |
| EC Near West Phoenix | Greenfield | Maricopa | — | — | 3.5 yrs | 61.7 |
| EC Near Ocotillo | Greenfield | Maricopa | — | — | 3.5 yrs | 61.6 |
| OZ Pima | Greenfield | Pima | — | — | 3.5 yrs | 61.6 |
| EC Near H Wilson Sundt Generating Station | Greenfield | Pima | — | — | 3.5 yrs | 61.5 |
| OZ Maricopa | Greenfield | Maricopa | — | — | 3.5 yrs | 61.5 |
| Greenfield (BELL - TAFT) | Greenfield | Spokane County | 500 kV | 1,000 MW | 3.5 yrs | 61.4 |
How does Arizona compare with other states for greenfield sites?
With 246 sites, Arizona ranks 30th of the 51 states that have any greenfield candidate sites. Texas leads with 1,276. Nationally, greenfield sites average 55.3/100 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 greenfield sites in Arizona?
The top 25 range from 63.2 to 61.4 on the 0–100 DC Readiness Score. They are concentrated in Maricopa (20) and Pima (4). By grid region, 25 are in WECC.
County pages: Maricopa · Pima · Spokane County
What power, fiber and flood exposure do these greenfield sites have?
Of the top 25 greenfield sites in Arizona, 1 have a recorded nearest-substation voltage, with a median of 500 kV; for 1 that substation is rated 230 kV or higher. Their counties have a median of 27 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 5 km. The median interconnection-queue wait in their markets is 3.5 years. None of the 24 with a mapped FEMA flood zone sits in a high-risk (A or V) zone.
Frequently asked questions
How many greenfield datacenter sites are in Arizona?
GridCensus catalogs 246 greenfield datacenter candidate sites in Arizona, 1% of the national total for this type (30th of 51 states).
What is a greenfield datacenter site?
Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
What is the best greenfield datacenter site in Arizona?
By DC Readiness Score, EC Near Crosscut in Maricopa ranks first at 63.2/100, followed by OZ Maricopa in Maricopa at 62.9.
Which Arizona counties have the best greenfield sites?
The top 25 greenfield sites in Arizona are concentrated in Maricopa (20) and Pima (4).
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 greenfield sites and Arizona
- All datacenter sites in Arizona· 3,816 sites
- Greenfield datacenter sites nationwide· 18,112 sites
- Federal Excess sites in Arizona· 1,616 sites
- Industrial sites in Arizona· 901 sites
- Substation-Adjacent sites in Arizona· 614 sites
- Former Mine sites in Arizona· 427 sites
- Brownfield sites in Arizona· 12 sites
Greenfield sites in other states
- Greenfield sites in Texas· 1,276 sites
- Greenfield sites in Pennsylvania· 973 sites
- Greenfield sites in California· 941 sites
- Greenfield sites in Illinois· 913 sites
- Greenfield sites in Florida· 791 sites
- Greenfield sites in Michigan· 719 sites
- Greenfield sites in Ohio· 680 sites
- Greenfield sites in Kentucky· 640 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, “Greenfield datacenter sites in Arizona”, https://gridcensus.com/site-types/greenfield/arizona (data as of November 12, 2026).
Go deeper than the public screen
Every site and score for Greenfield 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.