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IREN DATA CENTERS

IREN data centers.
What public records show.

IREN reported about 40 MW of operating AI cloud capacity on June 30, 2026, while about 380 MW still ran bitcoin mining. It reports about 5 GW of grid connection agreements in four countries. We checked its four US sites.

See the 4 sites ↓How we grade evidence ↗

SITES CHECKED OCTOBER 5, 2026

4 IREN sites.
16 public records.

Each site sits at the highest stage a record supports. Announced megawatts are shown beside the records, never added to them. A missing record does not mean a site is behind. Many counties publish nothing online.

  1. 0Announced
  2. 2Site identified
  3. 0Permitted
  4. 1Power secured
  5. 1Operating

Childress, Childress County, TX

Childress campus

Operating

Why this stage: Per SEC filing. IREN says its Childress substation was energized and connected to the Texas grid in April 2023, for bitcoin mining. In August 2026 it said the first 50 MW AI cloud hall, Horizon 1, was delivered to and accepted by Microsoft. A state air operating permit for the site is pending.

Owner or developer
IREN (owner)
IREN's role
Owner, operator and cloud provider
Link to IREN
“Childress, Texas, United States 750MW” IREN Form 10-K
Announced capacity
750 MW. “Childress, Texas, United States 750MW” IREN Form 10-K
Stated timing
“Horizon 1 has been delivered to and accepted by Microsoft. IREN plans to deliver Horizons 2-4 later this year.” Source
Public records found for Childress campus, oldest first.
DateRecordWhat it showsSource
January 21, 2022SEC filingIris Energy (now IREN), Form 6-K · 0001140361-22-002298Announces a binding agreement with AEP Texas to connect the Childress site to a 345 kV transmission line. The stated purpose was bitcoin mining.Stated capacity: “600MW binding connection agreement executed with AEP Texas”Status: Connection agreement executedRecord
April 13, 2023SEC filingIris Energy (now IREN), Form 6-K · 0001140361-23-018117Says the Childress substation was energized on April 6, 2023, completing the site's connection to the Texas grid. The load served bitcoin mining.Stated capacity: “600MW bulk power substation at Childress was energized”Status: Substation energizedRecord
September 12, 2024Tax abatementChildress County Commissioners Court · Iris Energy Reinvestment Zone #2 hearing noticeNotice of amended Chapter 312 tax abatement agreements for phases 2 and 3 on about 496 acres, for a data center and electrical infrastructure for bitcoin mining, with improvements estimated at about $1.4 billion.Status: Notice for an October 14, 2024 hearingRecord
September 9, 2025Grid or utilityPublic Utility Commission of Texas, Project 58484 · Item 25, IREN commentIREN told the commission it operates 650 MW of data centers in the Texas grid region and has 2,100 MW more under construction or development with executed interconnection agreements. The figure covers all its Texas sites and includes mining.Stated capacity: “IREN owns and operates 650MW of operating data centers in the ERCOT region”Status: Company comment in a rulemaking. Not a commission approval.Record
October 22, 2025Texas TDLR registrationTexas Department of Licensing and Regulation · TABS2026003980Registers a $15 million, 29,000 square foot operations building as part of Childress Data Center Campus Upgrades, with completion set for October 1, 2026. It is an office building, not a data hall.Status: Review completeRecord
November 3, 2025SEC filingIREN, Form 8-K · 0001140361-25-040072IREN agreed to provide Microsoft with NVIDIA GB300 capacity in four halls, Horizon 1 to 4, at Childress, worth about $9.7 billion through 2031.Stated capacity: “combined IT load of approximately 200MW”Status: Agreement signedRecord
August 13, 2026SEC filingIREN, Form 8-K · 0001140361-26-032638Horizon 1, the first of four 50 MW liquid-cooled halls for Microsoft, has been delivered and accepted. Horizons 2 to 4 are planned for later in 2026.Stated capacity: “50MW (IT load)”Status: First hall deliveredRecord
UndatedAir permitTexas Commission on Environmental Quality · RN111563557, air operating permit 4951TCEQ lists a data center on Highway 287 operated by IREN subsidiary IE US Development Holdings 3 Inc, with an air operating permit application pending.Status: Pending, as viewed October 3, 2026Record
Unverified: not found in online records
  • The executed county tax abatement agreements are posted as scanned files we could not read online. They would give investment and deadline terms.
  • No ERCOT or PUC record approving or energizing the grid connection was found online.
  • No state construction registration was found for the data halls themselves.
  • The site is in an unincorporated county, which likely issues no certificate of occupancy.

North of Sweetwater on FM 611, Fisher County, per state records, TX

Sweetwater 1

Power secured

Why this stage: Per SEC filing. IREN says it energized the Sweetwater 1 substation on schedule in spring 2026. No grid operator or utility record confirms it, and no data hall is operating yet.

Owner or developer
IREN (owner)
IREN's role
Owner and developer
Link to IREN
“Sweetwater 1, Texas, United States 1,400MW” IREN Form 10-K
Announced capacity
1.4 GW. “Sweetwater 1, Texas, United States 1,400MW” IREN Form 10-K
Stated timing
“construction of 300MW (gross) of data center capacity continues with delivery targeted for Q4 2027” Source
Public records found for Sweetwater 1, oldest first.
DateRecordWhat it showsSource
February 15, 2024SEC filingIris Energy (now IREN), Form 6-K · 0001140361-24-008183Announces a 1,400 MW West Texas data center site with a $4.7 million initial connection deposit paid and service expected in late 2026. The utility is not named.Stated capacity: “1,400MW data center development site in West Texas”Status: Connection deposit paidRecord
February 10, 2025Public authorityFisher County Commissioners Court · Regular session minutes, Order 4The agenda lists construction plans for the IREN Project Bull and a 90-day extension to its road use plan.Status: Information itemRecord
May 8, 2026SEC filingIREN, Form 8-K · 0001878848-26-000025IREN says it energized the Sweetwater 1 substation on schedule, with more Sweetwater capacity expected to ramp from 2028.Stated capacity: “We energized the Sweetwater 1 substation on schedule”Status: Substation energized, per IRENRecord
UndatedPublic recordTexas Commission on Environmental Quality · RN112136759, stormwater TXR1530TOConstruction stormwater authorization for Data Center Phase 1, Early Works Package, on FM 611 in Fisher County, held by IREN subsidiary IE US Development Holdings 5 Inc.Status: Active, as viewed October 3, 2026Record
Unverified: not found in online records
  • No grid operator or utility record of the connection or energization was found online.
  • No county tax abatement for this site was found.
  • News coverage places the site in Nolan County. State records for IREN's early works sit in neighboring Fisher County. Linking those records to Sweetwater 1 is our inference from location and timing.

Near Hamlin, Fisher County, per state records, TX

Sweetwater 2

Site identified

Why this stage: A state environmental record ties an IREN subsidiary to substation grading for Sweetwater 2 at 1730 FM 540, Hamlin. No permit, grid record or abatement was found.

Owner or developer
IREN (owner)
IREN's role
Owner and developer
Link to IREN
“IREN SWEETWATER 2 DATA CENTER PROJECT SUBSTATION ROUGH GRAD” TCEQ Central Registry
Announced capacity
600 MW. “600MW power secured: Under a binding grid connection agreement” IREN Form 6-K
Stated timing
“energization target Late 2027” Source
Public records found for Sweetwater 2, oldest first.
DateRecordWhat it showsSource
March 17, 2025SEC filingIREN, Form 6-K · 0001878848-25-000013IREN reports a binding 600 MW grid connection agreement for a site of more than 500 acres, about 28 miles from Sweetwater 1, with energization targeted for late 2027. The utility is not named.Stated capacity: “600MW power secured: Under a binding grid connection agreement”Status: Grid connection agreement executed, per IRENRecord
UndatedPublic recordTexas Commission on Environmental Quality · RN112486196, stormwater TXR1547YUConstruction stormwater authorization for substation rough grading at 1730 FM 540, Hamlin, held by IREN subsidiary IE US Development Holdings 7 Inc.Status: Active, as viewed October 3, 2026Record
Unverified: not found in online records
  • The utility and the interconnection agreement are not in any public grid record we found.
  • Timing differs by source. IREN said late 2027 in 2025. Some press reports say 2028.

About two miles south of Kiowa, Pittsburg County, OK

Oklahoma campus near Kiowa

Site identified

Why this stage: A county incentive project plan describes the Emerald ProjectCo data center on about 2,000 acres near Kiowa, with parcel descriptions. The plan does not name IREN. Local news reports tie Emerald ProjectCo to IREN.

Owner or developer
IREN (owner). County records name the developer as Emerald ProjectCo Inc.
IREN's role
Owner and developer
Link to IREN
“Kiowa, Oklahoma, United States 1,600MW” IREN Form 10-K
Announced capacity
1.6 GW. “Kiowa, Oklahoma, United States 1,600MW” IREN Form 10-K
Stated timing
“2028 Substation Energization” Source
Public records found for Oklahoma campus near Kiowa, oldest first.
DateRecordWhat it showsSource
April 21, 2026Tax abatementPittsburg County, Oklahoma · Emerald ProjectCo Data Center Project PlanDescribes up to two phases of about 600 MW each on about 2,000 acres along Highway 69. Tax abatement scales with energized megawatts, and no district can start before January 1, 2028.Stated capacity: “approximately 600 MW Energized total power capacity (per phase; up to two phases)”Status: Recommended by the county review committee. Local news reports the county board tabled it on June 22, 2026.Record
June 22, 2026Public authorityPittsburg County, Oklahoma · Hearing notices 1869 and 1870The county posted public hearing notices for the Emerald ProjectCo data center incentive districts, for June 8 and June 22, 2026.Status: Notices postedRecord
Unverified: not found in online records
  • No utility or grid record for the site was found.
  • The county board's vote on the project plan was not confirmed from minutes.
  • Capacity differs by source. IREN states 1,600 MW. The county plan describes up to two phases of about 600 MW.

NOT YET CHECKED

Other IREN sites.

These sites are named by the company or its partners. We have not yet checked their public records.

  • MackenzieBritish Columbia, Canada

    80 MW per IREN's 10-K. Liquid-cooled deployment planned in 2027.

  • Prince GeorgeBritish Columbia, Canada

    50 MW per IREN's 10-K. Liquid-cooled deployment planned in 2027.

  • Canal FlatsBritish Columbia, Canada

    30 MW per IREN's 10-K. Liquid-cooled deployment planned in 2027.

  • BundeySouth Australia

    800 MW per IREN's 10-K. In development.

  • BadajozExtremadura, Spain

    300 MW per IREN's 10-K. In development.

BEFORE YOU SIGN

Ask which site
backs your quote.

Company totals do not tell you whether your allocation is live. These questions tie a proposal to a site you can check.

  1. Which campus and hall will host my cluster? The four Horizon halls at Childress are contracted to Microsoft.
  2. Has that hall been delivered, or is it one still being converted from bitcoin mining?
  3. If my capacity is at Sweetwater, what delivery date is in my order? IREN targets Q4 2027 for the first 300 MW there.
  4. What happens to my payment and commitment if equipment delays push delivery back?

WORK THROUGH IT WITH AN ADVISOR

Check a IREN proposal against the record.

Bring your workload, launch date and what could change. We can help you evaluate capacity, compare proposals and identify the deployment support you need.

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Notes on these records

  • IREN says it aims to substantially complete its move from bitcoin mining to AI cloud by December 31, 2026. Mining capacity and AI cloud capacity are reported separately and are not added together here.
  • IREN's 10-K says supply chain issues have in the past delayed equipment needed to deliver Horizon 1 to Microsoft. Horizon 1 was delivered and accepted in August 2026.
  • IREN also reports a separate five-year, $3.4 billion AI cloud contract with an unnamed customer, deployed at Childress, with commissioning targeted for early 2027.
  • A separate developer has registered large data center buildings on County Road 23 in Childress under the name Project Hyper. The owners are not IREN entities, and we do not attribute them to IREN.

Records were read online on October 5, 2026. Corrections are welcome through the form below. All providers ↗

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