EC Pinal Coal Area
GreenfieldPinal County, Arizona · WECC
At a glance
EC Pinal Coal Area is a greenfield datacenter candidate site in Pinal County, Arizona, scoring 57.8/100 DC Readiness — 20th of 471 scored sites in the county. It sits in the WECC grid region and the ELECTRICAL DIST NO3 PINAL COUNTY service territory, where interconnection has averaged 3.5 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Sales-tax exemption suspended Jul 2026–Jun 2029; water constraints add scrutiny.
Incentive detail: Government Property Lease Excise Tax (GPLET) for qualified facilities on government land.
Site location
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How does EC Pinal Coal Area compare with other sites in Pinal County?
EC Pinal Coal Area ranks 20th of 471 scored candidate sites in Pinal County. Its 57.8/100 is about 17% above the county average of 49.5. It is about 19% above the Arizona average of 48.5 and roughly in line with the national average of 53.2.
Against the Arizona average, its strongest sub-score is water (43 vs 17) and its weakest is power availability (30 vs 34). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is EC Pinal Coal Area to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is EdgeCore Phoenix at 17.9 miles. 15 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is L3Harris Technologies Inc, 16.1 miles away.
What are the flood, water and hazard risks at EC Pinal Coal Area?
The site is in FEMA flood zone D, where flood risk has not been determined. WRI rates baseline water stress at 4.20 on a 0–5 scale. No mapped wetlands are recorded on the parcel. At the county level, FEMA's National Risk Index rates Pinal County "Relatively Low".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Pinal County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| Copper Crossing Energy and Research Cent | Brownfield | 69 kV | 1,779 MW | 3.5 yrs | 69.5 |
| BROWNING | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 65.7 |
| SAGUARO | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 63.8 |
| ABEL | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 63.0 |
| DUKE | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 62.3 |
| TORTOLITA | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 62.0 |
| PINAL CENTRAL | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 61.4 |
| SCHRADER | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 60.8 |
EC Pinal Coal Area: common questions
What is the DC Readiness score of EC Pinal Coal Area?
EC Pinal Coal Area scores 57.8/100 on the GridCensus DC Readiness scale, rated good. It ranks 20th of 471 scored sites in Pinal County. The Pinal County average is 49.5 and the Arizona average is 48.5.
Which electric utility serves EC Pinal Coal Area?
ELECTRICAL DIST NO3 PINAL COUNTY (political subdivision) holds the retail service territory that contains the site.
What grid region is EC Pinal Coal Area in?
EC Pinal Coal Area is in the WECC region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
Is EC Pinal Coal Area in a flood zone?
The site is in FEMA flood zone D, where flood risk has not been determined.
Who owns EC Pinal Coal Area?
Parcel records list the owner as ARIZONA PUBLIC SERVICE COMPANY (private land).
How far is EC Pinal Coal Area from an internet exchange?
The nearest internet exchange facility is EdgeCore Phoenix, about 17.9 miles away; 15 fiber providers report service at the location.
Related pages
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 October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “EC Pinal Coal Area, Pinal County, AZ”, https://gridcensus.com/datacenter-sites/arizona/pinal-county/ec-pinal-coal-area-0f96d6a6 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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