Proposed-site record

Butte Data Center

Media Monitoring lead with high location confidence. Use the linked sources to verify status, public money, NDA/secrecy, water, and power details before treating this as a fully documented local record.

Blocked or pausedconfirmedHigh concern

Site Snapshot

Location
Butte, Silver Bow County, Montana
Operator / sponsor
Sabey Data Centers
Status / stage
Blocked or paused · blocked / paused
Scale
50-250 MW reported; Hyperscale (100-999 MW); 1,000,000 sq ft; 600 acres; expected online 2026
Reported project context; confirm whether any MW figure is requested, approved, energized, IT load, generation, or ultimate buildout before comparing it with another record.Capacity reading: Project-scale context · MW type not established · Proposed floor area · Site area · Target online date

Compute Workload

This panel tracks what the facility is for without assuming that every project is AI training, inference, or cloud capacity.

Undisclosed / unknownUnknown

The Butte-Silver Bow project committee describes Sabey's proposed campus and says site due diligence and power negotiations were ongoing; the committee's current project page records a six-month purchase-agreement extension granted February 11, 2026. April 2026 county records document a committee-reported site visit, and NorthWestern Energy's July 2026 SEC-filed presentation lists Sabey's 50 MW study load ramping to 200 MW under a development agreement. These are status and utility/project context rather than a workload allocation. The reviewed public materials do not identify a tenant, facility workload, hardware or training/inference split.

Sabey is the disclosed developer; the committee's February 11 extension notice, initial 50 MW and potential 200 MW figures, and NorthWestern's 50 MW-to-200 MW study-load entry are development or utility context, not workload capacity. The April 2026 site-visit report is operational context about another Sabey facility, not evidence about this proposed campus. Preserve the due-diligence/development-agreement status and keep customer, operator workload, hardware and allocation unknown.

Sources reviewed; workload unresolved · Reviewed 2026-09-09Training/inference: unknown · class: unknownButte-Silver Bow Data Center Impact Committee: About the proposed data-center projectCity and County of Butte-Silver Bow: Ad-Hoc Data Center Impact Committee — proposed project updateCity and County of Butte-Silver Bow: Montana Connections TEDD Board agenda — Sabey Data Centers updateCity and County of Butte-Silver Bow: Economic Development Committee report: Sabey Data Center visitNorthWestern Energy Group (SEC filing): NorthWestern Energy Q2 2026 earnings presentation — Montana large-load opportunities

Power

Source review September 9, 2026: Butte-Silver Bow's project page says Sabey is evaluating an initial 50 MW of NorthWestern Energy service with an expected scale-up to 200 MW, while the site remains in due diligence and power terms are still being negotiated. These are proposed utility-service figures, not energized or data-center IT-load capacity; the dataset's 50-250 MW range remains unreconciled.

Bloom / Fuel Cells

No fuel-cell or Bloom Energy source is attached to this project yet.

NDA / Secrecy

No NDA reported

Missing NDA / secrecyFields with source leads: Public money, Water, Power
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Sources and Leads

These links are the current public trail for this record. Treat broad dataset links as leads; local documents and reporting carry more weight.