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Data center project · Pima County, Arizona

Project Blue

Under construction · Beale Infrastructure's 290-acre hyperscale campus southeast of Tucson, tied to AWS in county memos, proceeding on county land after Tucson refused to annex it. Also known as: Southeast Employment and Logistics Center, Humphrey's Peak Power LLC (TEP contract party).

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Status
Under construction · as of April 24, 2026
Approved by
Pima County Board of Supervisors
Rezoning of the county parcel to light industrial and sale of the county land for the project, June 2025, vote 3-2
Exact meeting date not given in the sources; the dissenting supervisors were not named in the sources read. The land sale closed on Dec. 24, 2025. (Data Center Dynamics, July 22, 2025; KJZZ (Fronteras Desk), Sept. 19, 2025; AZ Luminaria, Jan. 8, 2026)
Approved by
Arizona Corporation Commission
TEP 10-year energy supply agreement with Humphrey's Peak Power LLC (Docket E-01933A-25-0187), Dec. 3, 2025, vote 4-1
Commissioner Rachel Walden dissented, per the ACC release. A rehearing request by the Attorney General, the City of Tucson and two residents followed. (Arizona Corporation Commission, Dec. 5, 2025; AZ Luminaria, Jan. 8, 2026)
Location
Unincorporated Pima County, just north of the Pima County Fairgrounds, southeast of Tucson · Pima County
Status note
KOLD reported site construction under way on April 24, 2026, with several permits still under review; legal challenges to the TEP power contract continued.
Power
600 MW
No figure in a public record found. DCD cites reports of up to 600 MW across 10 buildings (2 million sq ft) and up to 700 MW at full build-out including a possible second site; Beale has said phase one fits within TEP's existing capacity.
Floor area
2,000,000 sq ft
Land
290 acres
Investment
About $3.6 billion (reported, Construction Reporter)
Developer and team
Beale Infrastructure (backed by Blue Owl); Humphrey's Peak Power LLC
End user
Amazon Web Services, per Pima County memos obtained by AZ Luminaria (DCD); Amazon declined to comment.
Utility
Tucson Electric Power (10-year energy supply agreement, ACC Docket E-01933A-25-0187)
Water
Original plan relied on Tucson Water potable water, then reclaimed water via a new line; after Tucson declined annexation, Beale moved to a closed-loop, electricity-based cooling design.
Incentives
No state or local incentive amount found. Beale projects about $152 million in tax revenue over 10 years, $58.5 million to Pima County (KJZZ).
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.

Updates, newest first

  1. April 24, 2026 Construction began on what is planned as a 10-building campus targeted to open by 2028; the No Desert Data Center Coalition protested at the site. (KOLD 13 News, April 24, 2026)
  2. Jan. 8, 2026 Attorney General Kris Mayes, the City of Tucson and two residents asked the ACC to rehear the TEP agreement. (AZ Luminaria, Jan. 8, 2026)
  3. Dec. 24, 2025 The county land sale closed. (AZ Luminaria, Jan. 8, 2026)
  4. Dec. 3, 2025 The Arizona Corporation Commission approved TEP's 10-year energy supply agreement with Humphrey's Peak Power LLC 4-1, with minimum bills, an 18-month load ramp, developer-paid dedicated infrastructure and exit fees; Commissioner Rachel Walden dissented. (Arizona Corporation Commission, Dec. 5, 2025)
  5. Sept. 19, 2025 Beale said it would revive the project on the same county land with a new TEP power deal and closed-loop cooling. (KJZZ (Fronteras Desk), Sept. 19, 2025)
  6. Aug. 6, 2025 Tucson's mayor and council unanimously moved to end city participation, dropping the annexation and water-service agreement. (Construction Reporter, Aug. 7, 2025; KOLD 13 News, April 24, 2026)
  7. July 22, 2025 County memos reported by AZ Luminaria identify Amazon Web Services as the end user; the county had been under a nondisclosure agreement since at least June 2024. (Data Center Dynamics, July 22, 2025)
  8. June 2025 Pima County supervisors voted 3-2 to rezone the parcel to light industrial and approved selling the county land for the project. (Data Center Dynamics, July 22, 2025; KJZZ (Fronteras Desk), Sept. 19, 2025)

Conflicts and open questions

  • Land sale proceeds differ: KOLD says almost $21 million; AZ Luminaria, citing county documents, says more than $27 million.
  • Search results indicate the ACC kept its decision, Mayes appealed, and a Maricopa County judge is weighing a final rehearing bid (KJZZ, Sept. 24, 2026), but those pages could not be opened in this pass (rate limit); verify before publishing.
  • Megawatt figure is from secondary reporting only; the ACC release gives none.

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