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Data Center Registry

IREN Sweetwater Campus

Sweetwater, Nolan County, Texas · All 3 IREN sites

Under constructionMixed receptionAI confirmedRecord updated July 25, 2026

IREN Sweetwater Campus is a data center under construction in Sweetwater, Texas (Nolan County), operated by IREN (Iris Energy). The public record puts it at announced 2025, 2 GW planned, 2,200 acres. It has documented support and documented opposition on record.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Under construction

Operator
IREN (Iris Energy)
Facility type
Data center, AI use confirmed
Location
Sweetwater, Nolan County, TX
Coordinates
32.4707, -100.4059
Power capacity
2 GW planned
Land
2,200 acres
Investment
Not established from a public source
Announced
2025
Utility
ERCOT
Power source
Grid
Cooling
Closed loop
Water use
Not established from a public source
Jobs
350 permanent; 700 construction
Public subsidy
Tax Increment Reinvestment Zone (TIRZ) No. 1, Nolan County, Nolan County, TX, 2025
Community reception
Mixed reception
Source confidence
Confirmed by multiple independent sources or official documentation

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

  1. May 2026
    Under construction
    May 1, 2026: Sweetwater 1 1,400 MW substation energized, connecting to ERCOT grid via 345kV high-voltage line. Data centers commissioning in phases; power to ramp with construction. Source: IREN investor relations
  2. March 2025
    Proposed
    Mar 17, 2025: IREN announces 600 MW grid connection agreement for Sweetwater 2 in Fisher County, bringing total secured power to 2.75 GW across West Texas. Source: IREN investor relations
  3. January 2025
    Proposed
    Jan 21, 2025 IREN business update: first formal public announcement of 1,400 MW Sweetwater data center development. October 2024 update had disclosed HPC/AI pivot on 1,300+ acres. Source: IREN investor relations

Opposition and litigation at this site

Partly. Both documented support and documented opposition to IREN Sweetwater Campus in Sweetwater, Nolan County, Texas appear in the record, with no clear majority position. No documented site-specific opposition to IREN Sweetwater found.

How the community has taken it

Reception is a sourced signal, not an editorial judgment: mixed reception means documented support and documented opposition both exist with no clear majority position on record.

No documented site-specific opposition to IREN Sweetwater found. Nolan County TIRZ public hearing (June 2025) recorded zero opposition comments. Broader rural West Texas context: Texas Tribune (Oct 2025) reported growing community concern over data center water use; Texas PUC water survey (June 2026) found most operators non-responsive. TIRZ was approved by Nolan County to enable hyperscale data center development; specific operator in TIRZ article is Deriva Energy (ROW agreement), not confirmed as IREN.

Source: Texas Tribune

Power and water

345kV high-voltage connection to ERCOT grid. IREN and third-party sources describe West Texas as one of the world's largest renewable energy markets; interconnection.fyi lists renewable energy via RECs (wind/solar) for this site.

Direct-to-chip liquid cooling plus supplemental air cooling. Closed-loop design described by IREN and analysts as dramatically reducing water consumption vs. traditional evaporative approaches. West Texas arid climate noted as a water-conservation design driver. No reported MGD figure confirmed.

Public money on the record

ProgramAmountGranted byYear
Tax Increment Reinvestment Zone (TIRZ) No. 1, Nolan CountyNot establishedNolan County, TX2025

Notes on the record

Two-site campus: Sweetwater 1 (1,400 MW, ~1,700 acres, Nolan/Jones County boundary area) substation energized May 1, 2026 via 345kV ERCOT connection; data centers commissioning in phases. Sweetwater 2 (600 MW, ~500 acres, Fisher County, near Hamlin TX, ~28 miles from SW1) targeted energization late 2027 per IREN (some sources cite 2028). Direct fiber loop planned between sites for single 2 GW compute hub with <10ms latency to Dallas. Coordinates are approximate (Sweetwater city center, Nolan County seat). County boundary sources conflicting: DCD says Fisher County for both sites; interconnection.fyi and dispatch brief cite Nolan County for SW1; northwiseproject.com says Nolan and Jones Counties span the campus. IREN's $9.7B Microsoft contract (Nov 2025) and $3.4B NVIDIA contract (May 2026) are company-wide deals currently deployed at Childress, TX campus (Horizon 1-4); the NVIDIA partnership press release specifically names Sweetwater as the flagship future deployment site for NVIDIA DSX factory architecture. No confirmed customer contracts specific to Sweetwater site as of 2026-07-07. IREN was in Sweetwater since 2022 as a Bitcoin mining site; HPC/AI pivot announced October 2024. Interconnection.fyi lists renewable energy sourcing via RECs (wind/solar) at this site.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

Questions people ask about this site

Is there opposition to the IREN Sweetwater Campus in Sweetwater?

Partly. Both documented support and documented opposition to IREN Sweetwater Campus in Sweetwater, Nolan County, Texas appear in the record, with no clear majority position. No documented site-specific opposition to IREN Sweetwater found.

Has anyone filed a lawsuit over the IREN Sweetwater Campus?

No lawsuit over IREN Sweetwater Campus appears in the record we track as of July 25, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does IREN Sweetwater Campus use?

No water withdrawal figure for IREN Sweetwater Campus is on record here. Cooling is recorded as closed_loop, which is the strongest available clue: closed loop and air cooled plant draw far less than evaporative cooling. We leave the number blank rather than estimate one.

Who operates IREN Sweetwater Campus, and how big is it?

IREN (Iris Energy) is the operator on record. We hold 3 sites for that company across the registry. Capacity on record is 2 GW. The site is recorded at 2200 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "IREN Sweetwater Campus," updated July 25, 2026, https://suedatacenters.org/data-centers/iren-sweetwater-tx.

Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/iren-sweetwater-tx, retrieved September 14, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

  1. 1.IREN Announces Successful Energization of Sweetwater 1 · IREN investor relations · retrieved July 7, 2026
  2. 2.IREN Announces Successful Energization of Sweetwater 1 (May 1, 2026) · GlobeNewswire · retrieved July 7, 2026
  3. 3.IREN Business Update Jan 21, 2025, first 1,400 MW Sweetwater announcement · IREN investor relations · retrieved July 7, 2026
  4. 4.IREN Secures 2.75GW for Data Centers in West Texas, Sweetwater 2 600 MW announcement (Mar 17, 2025) · IREN investor relations · retrieved July 7, 2026
  5. 5.IREN Secures $9.7bn AI Cloud Contract with Microsoft (Nov 3, 2025) · IREN investor relations · retrieved July 7, 2026
  6. 6.Iren energizes first phase of 2GW Sweetwater data center campus in Texas · Data Center Dynamics · retrieved July 7, 2026
  7. 7.IREN Expands Data Center Power to 2.75GW with New Texas Agreement (Sweetwater 2) · StockTitan · retrieved July 7, 2026
  8. 8.NVIDIA Anchors IREN With $3.4B Contract And $2.1B Equity Warrant (May 2026) · Global Data Center Hub · retrieved July 7, 2026
  9. 9.Nolan County approves Tax Increment Reinvestment Zone No. 1 for hyperscale data center development (June 2025) · Sweetwater Reporter · retrieved July 7, 2026
  10. 10.Rural Texas casting skeptical eye on data center openings, water concerns (Oct 2025) · Texas Tribune · retrieved July 7, 2026
  11. 11.IREN Sweetwater 1, interconnection queue record · Interconnection.fyi · retrieved July 7, 2026

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