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Data center campus · Montana Connections Business Development Park, near Butte (approximate position), Silver Bow County, Montana

Sabey Data Centers, Butte (SDC Montana)

Withdrawn as of May 13, 2026

Sabey's planned AI data center campus on 606 acres of county-owned business park land near Butte, dropped in May 2026 when the land deal fell apart. Also known as: Horizons Montana LLC, Montana Connections site.

Cite← Montana data centers
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Power250MW reported · record
Site606acres

Who is behind it

ProjectSabey Data Centers, Butte (SDC Montana)Also: Horizons Montana LLC, Montana Connections site
Developer and teamSabey Data Centers (through Horizons Montana LLC)
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. Sabey's project website still described a planned campus serving Butte and Anaconda, in due diligence, with no site named. (Sabey Data Centers (developer), Oct. 24, 2026)

  2. Reporting said the Public Service Commission had released the three letters of intent earlier that week with most redactions lifted; Sabey's covers two sites of up to 250 MW each, and no service agreement was active. (The Livingston Enterprise (Lee Newspapers), Aug. 6, 2026)

  3. Sabey ended the purchase agreement after an existing park tenant moved to buy the land under an older right of first refusal. (Montana Legislative Services Division, June 2026; DatacenterDynamics, May 29, 2026)

  4. Butte-Silver Bow commissioners voted 10-1 to sell Sabey 606 acres in the county's business park for about $1.21 million, with clawback terms if no data center is built. (Montana Standard (via KULR-8), 2025; Montana Public Radio, April 22, 2025)

  5. NorthWestern Energy disclosed a nonbinding letter of intent to supply power to a Sabey data center in Montana. (NorthWestern Energy Group, Inc. (U.S. Securities and Exchange Commission), 2026)

Conflicts and open questions

  • The land-sale vote is dated from reporting: Montana Public Radio said on April 22, 2025 that commissioners approved the sale the week before. It was not confirmed in a county record.

The full record

Status note
Sabey ended its agreement to buy 606 acres from Butte-Silver Bow on May 13, 2026 after an existing park tenant used an older right of first refusal on the land. Legislative staff said in June 2026 that Sabey was still interested in the area, and its project website still describes a planned campus serving Butte and Anaconda.
Power note
250 MW is the power requirement legislative staff list for the Butte site. NorthWestern's December 2024 letter of intent with Sabey covered two sites of up to 250 MW each; the second site is redacted in the public copy.
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.