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Data center campus · near 40th St. and Loop 202, central Phoenix (near Sky Harbor Airport), Maricopa County, Arizona

STACK Infrastructure PHX02

Proposed as of Nov. 8, 2022

STACK Infrastructure plans a five-building central Phoenix campus near Sky Harbor Airport with its own on-site substation, rated at nearly 250 MW of critical capacity. Also known as: STACK PHX02 Campus, PHXL2.

Cite← Arizona data centers
Apache CountyCochise CountyCoconino CountyGila CountyGraham CountyGreenlee CountyLa Paz CountyMaricopa CountyMohave CountyNavajo CountyPima CountyPinal CountySanta Cruz CountyYavapai CountyYuma CountySTACK Infrastructure PHX02 · Proposed · 250 MW
Power250MW reported · stated
Floor area1,700,000sq ft
Site51acres
IT load250MW

Who is behind it

ProjectSTACK Infrastructure PHX02Also: STACK PHX02 Campus, PHXL2
Developer and teamSTACK Infrastructure
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. STACK's PHX02 page lists the 51-acre, five-building campus with nearly 250 MW of critical capacity. (STACK Infrastructure, Sept. 15, 2026)

  2. STACK announced a five-building, 1.7 million sq ft, 230 MW campus on 50 acres in central Phoenix near Sky Harbor, with a dedicated on-site substation. (STACK Infrastructure, Nov. 8, 2022; Phoenix Business Journal (via Rose Law Group Reporter), Nov. 8, 2022)

Conflicts and open questions

  • PBJ (Nov 2022) reported that STACK bought the land from Sunbelt Land Holdings LP for $78.5 million.
  • Acreage figures: 50 acres (2022 release) vs 51 acres (current page, PBJ).
  • The lead listed some buildings as operating. I could not confirm that from a citable source, so status stays proposed.
  • STACK's other Phoenix campus, PHX01 in Avondale (225 MW critical per STACK's market page), is not in this lead and is not tracked here.

The full record

Status note
STACK announced the campus in November 2022 after buying the land. Its PHX02 page (modified Sept. 15, 2026) and Phoenix market page give capacity but no construction or delivery status for any building. I found no public record of a construction start, approval or opening, so status stays proposed.
Power note
STACK's page says nearly 250 MW of critical capacity. The 2022 release said 230 MW, and PBJ reported 234 MW.
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.