Announced

STACK Central Phoenix Campus

STACK Infrastructure, a private operator, has announced STACK Central Phoenix Campus, a data center project in Phoenix, AZ. Reported capacity is 230 MW. Five-building, 230MW campus on 50 acres in central Phoenix; announced November 2022, in phased development.

230 MWPlanned capacity

Photo: STACK Infrastructure

Project status

Announced Nov 8, 2022
Permitting
Under constructionNot yet
OperationalNot yet

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What’s next

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Tuesday, November 3
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Tuesday, November 312:30 AM · Phoenix, AZ
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Stories about it, and about Maricopa County, AZ, land here.

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Records and documentation

Arizona state legislation

Council Vote — Denial of AI Data Center Special Use ApplicationApprovalchandleraz.govChandler City Council denied a special-use application for an AI data center project in December 2025.Download
ACC Docket E-01345A-25-0105 - APS 2025 General Rate Case (Data Center Rate Class)Approvaledocket.azcc.govFiled June 2025, seeking ~14-16% base rate increase including a 45%+ rate increase specifically for "extra-large energy users" (data centers) and a proposed annual true-up mechanism largely tied to data-center-driven load growth.Download
Pima County Memorandum of Agreement (Project Blue / Humphreys Peak Properties)Community benefits agreementfas.orgBinding MOA between Pima County and Humphreys Peak Properties for the 'Project Blue' data center development.Download
Ordinance No. 5033 (Zoning Code Ch. 35, Sec. 2214)Ordinancechandleraz.govOne of the earliest data center zoning ordinances in the US, enacted by Chandler, AZ in December 2022.Download
ACC Docket E-00000A-25-0069 - Inquiry into Data Center Rate ClassificationsDocumentedocket.azcc.govOpened April 2025 -- commission-wide inquiry into rate classification and cost-allocation policy for data centers/large loads ("Growth Pays for Growth"). Workshop held April 2026.Download
HB2949 - Energy costs; large data centersLegislationlegiscan.comHouse read second time Feb 5, 2026Description comingDownload
HB2452 - Comprehensive plans; data centers; nuclearLegislationlegiscan.comHouse motion to reconsider third reading Feb 26, 2026Description comingDownload

Site details

Operator: STACK Infrastructure
County: Maricopa County, AZ
Capacity: 230 MW
Address: Phoenix, AZ
Stage: Announced

Size: not on file

Map

Photos

Photo: STACK Infrastructure
Aerial imageryPhoto: STACK Infrastructure
Google Street View
Mapillary
Resistance to this data hub in Phoenix is futile. Here's whyThe Arizona Republic
An $8 billion Treasury break helped Meta’s tax rate hit 2%. Senators want data center tax answersFortune
The states with the fewest and most data centers, rankedBusiness Insider
Finns Are Seething After Google Illegally Toppled 250,000 Trees for a Data CenterMother Jones
Google offer to pay others to help data center powerArkansas Online
This bill would make data centers pay their own way for powerSalt Lake City Deseret News