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Sweetwater II

The smaller half of IREN's two site Sweetwater hub in Fisher County. It has contracted grid capacity and active site work, but the company's own schedule places energization later, so the certification does not make it operating.

11Sourced facts4Source records5Open gaps

What the record establishes

Site power capacity
600 MW[2]as of March 31st, 2026
Site land area
500 acres[3]
Combined Sweetwater hub power capacity
2 GW[3]
Combined Sweetwater hub land area
1,800 acres[3]
Refundable connection deposits paid
$13.5 million[4]as of June 30th, 2025
Nonrefundable connection costs paid
$4.1 million[4]as of June 30th, 2025
Company status
Under construction with substation energization targeted for the fourth quarter of 2027[2]as of December 31st, 2025
Fiber plan
Design complete for a direct loop between Sweetwater One and Sweetwater Two[2]as of December 31st, 2025
Owner and operator of record
IE US DEVELOPMENT HOLDINGS 7 INC[1]as of August 27th, 2026
Occupant of record
IE US HARDWARE 1 INC[1]registry read August 27th, 2026
Certification effective
July 15th, 2025[1]

What changes the reading

  • IREN reports Sweetwater One and Sweetwater Two as one hub. The larger hub totals are context and should not be read as the size of this certified site.[2][3]
  • A grid connection agreement and paid deposits establish development work. They do not establish that the substation is energized or that computing equipment is drawing power.[2][4]
  • The owner, occupant, and operator are related IREN entities. The registry does not name an outside computing customer for this certification.[1][2]

Still not public

  • The exact street address is not public.
  • Delivered power and actual electrical demand are not public.
  • An outside computing customer has not been named.
  • Building count and floor area are not public.
  • Measured water use and the final cooling design are 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. Sweetwater Data Center HubIRENcompanyRead August 27th, 2026.
  4. IREN Annual ReportU.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.