id: atlas-power-butte
name: Atlas Power Butte data center
status: operational
location:
  country: US
  state: MT
  county: Silver Bow
  locality: Butte
metrics:
  capacity_mw: 75
first_seen: '2026-07-07'
last_updated: '2026-07-07'
confidence: medium
sources:
- url: https://dailymontanan.com/2026/02/23/eleven-data-center-developers-in-talks-with-northwestern-group-says/
  title: Eleven data center developers in talks with NorthWestern, group says
  publisher: Daily Montanan
  date: '2026-02-23'
  note: single source for both capacity and operating status
signals:
- sig-20260706-atlas-butte-capacity
- sig-20260706-atlas-butte-status
notes: 'Operator "Atlas Power" has no operators.yml entry — needs one before the operator
  field can be set. Reported operating in Butte since 2019, hence status operational. Capacity:
  NorthWestern Energy to supply 75 MW beginning 2026, with up to another 75 MW over 3-5 years
  (expansion not yet firm, so capacity_mw reflects the initial 75 MW). Single source (Daily
  Montanan) → medium confidence.'