Texas AI Docket

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Certified facility dossier

Horizon

An IREN liquid cooled expansion inside the operating Childress campus. Company filings describe several Horizon buildings as one program, so the profile keeps the wider campus and the exact certification separate.

10Sourced facts3Source records5Open gaps

What the record establishes

Childress site power capacity
750 MW[2]as of December 31st, 2025
Childress operating data center capacity
650 MW[2]as of December 31st, 2025
Combined information technology load across Horizons One through Four
200 MW[2]as of December 31st, 2025
Childress campus operations began
April 2023[2]
Horizon cooling design
Direct to chip liquid cooling[2]
Current Horizon program schedule
Horizons One through Four targeted for delivery by the end of 2026[3]as of May 7th, 2026
Customer relationship reported for the Horizon program
Microsoft contract across Horizons One through Four[3]as of May 7th, 2026
Owner and operator of record
IE US Development Holdings 3 Inc[1]as of August 27th, 2026
Occupant of record
IE US HARDWARE 3 LLC[1]registry read August 27th, 2026
Certification effective
July 24th, 2025[1]

What changes the reading

  • IREN reports four numbered Horizon developments as a combined program. The registry uses only the shared Horizon name, so the combined load can't be assigned to one building from the public record.[1][2][3]
  • The operating figure belongs to the full Childress campus and includes older computing infrastructure. It is not evidence that the Horizon program has delivered the same amount of artificial intelligence capacity.[2]
  • The company connects the Horizon program to Microsoft. The certification lists an IREN hardware affiliate as occupant, which is a different legal role from the customer relationship.[1][3]

Still not public

  • The exact numbered Horizon building covered by this certification is not public.
  • Delivered capacity for each Horizon building is not public.
  • Current measured demand for the Horizon program is not public.
  • Building floor area and construction cost are not public.
  • Measured water use is not public.

Source trail

  1. Data Center ListsTexas Comptroller of Public AccountsfilingRead August 27th, 2026.
  2. IREN Half Year ReportU.S. Securities and Exchange CommissionfilingRead August 27th, 2026.
  3. IREN Business Update and Third Quarter ResultsU.S. Securities and Exchange CommissionfilingRead August 27th, 2026.

The registry entry for this facility comes from the Texas Comptroller's certified list of data centers holding a sales tax exemption. Owner, occupant and operator are roles in that filing rather than descriptions of who runs the building.