Data center campus · northeast of Great Falls, next to the AgriTech Park and north of Malmstrom Air Force Base (approximate), Cascade County, Montana

Project Cardinal (TAC Data Centers)

Withdrawn as of Nov. 2025

A proposed campus of up to 20 buildings and 600 MW on 569 acres near Great Falls, announced by the local development alliance in June 2025 and withdrawn that November. Also known as: TAC Data Centers Great Falls.

Cite← Montana data centers
Beaverhead CountyBig Horn CountyBlaine CountyBroadwater CountyCarbon CountyCarter CountyCascade CountyChouteau CountyCuster CountyDaniels CountyDawson CountyDeer Lodge CountyFallon CountyFergus CountyFlathead CountyGallatin CountyGarfield CountyGlacier CountyGolden Valley CountyGranite CountyHill CountyJefferson CountyJudith Basin CountyLake CountyLewis and Clark CountyLiberty CountyLincoln CountyMadison CountyMcCone CountyMeagher CountyMineral CountyMissoula CountyMusselshell CountyPark CountyPetroleum CountyPhillips CountyPondera CountyPowder River CountyPowell CountyPrairie CountyRavalli CountyRichland CountyRoosevelt CountyRosebud CountySanders CountySheridan CountySilver Bow CountyStillwater CountySweet Grass CountyTeton CountyToole CountyTreasure CountyValley CountyWheatland CountyWibaux CountyYellowstone CountyProject Cardinal (TAC Data Centers) · Withdrawn · 600 MW
Power600MW reported · stated
Floor area2,000,000sq ft
Site569acres

Who is behind it

ProjectProject Cardinal (TAC Data Centers)Also: TAC Data Centers Great Falls
Developer and teamTAC Data Centers (The Ardent Companies)
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. The development alliance said the developer had withdrawn because the timeline for power did not fit. (KRTV, Nov. 19, 2025)

  2. The Great Falls Development Alliance announced the proposal, which the developer said was in the entitlement process and waiting on a NorthWestern transmission study. (DatacenterDynamics, June 18, 2025)

Conflicts and open questions

  • No county or city application was found in the records we checked.

The full record

Status note
The developer dropped the proposal in November 2025, citing slow timelines for power from NorthWestern.
Power note
Reported as 500 to 600 MW of critical load.
Evidence
News reports; primary records not yet obtained
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.