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Capacity, status, permit, grid-request and construction changes over the last three years, each with its source. A change means the same source reported a new value later; two sources disagreeing is not a change. Follow a facility, company, utility, state or ISO by email, or subscribe to the feed in any RSS reader.

Each change is tagged by evidence: ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. filing, deed, permit or grid recordAnnouncedStated by the company or reported in the press; not yet backed by a filing or grid record. company or press claimEst.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. satellite, model or map inferenceHow levels are assigned

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Changes per month by evidence level. Click a month to filter.
2023-112026-10
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  1. Aug 1, 2026
    AWS Berwick · PA
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 77 MW → 108 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 102 MW → 139 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 2 → 3
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Building 3 expected to come online sometime around August 2026, since in the May satellite image it appeared structurally complete with minimal construction surrounding it. Basing MW estimate using Building 2 as a ref…
    Source: Epoch AI
  2. Jun 15, 2026
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Operating + expanding → Operating
    Source: Epoch AI
  3. Jun 15, 2026
    Colossus 2 · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 490 MW → 946 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 661 MW → 1.28 GW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 1 → 2
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: The site is estimated to have at least ~830 MW of GPU server power, with at least "at least 220,000 additional GB300 processors and over 400 additional megawatts of compute power", corresponding to the "next phase of …
    Source: Epoch AI
  4. May 31, 2026
    Anthropic Lake Mariner · NY
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 1
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Building 1 is operational. On February 26, Terawulf stated that CB3 was expected to be energized by mid-May 2026. A drone video commissioned from RAAD shows several cooling units operating on May 8. It's therefore lik…
    Source: Epoch AI
  5. May 15, 2026
    Amazon Ridgeland · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 4
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Buildings 1-4 are operational, based on the buildings shells and backup generators and most of the landscaping looking complete. Building 5 roof is complete but still lacks cooling equipment.
    Source: Epoch AI
  6. Apr 6, 2026
    Colossus 2 · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 239 MW → 490 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 323 MW → 661 MW
    Source: Epoch AI
  7. Mar 23, 2026
    Anthropic-Amazon New Carlisle · IN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 626 MW → 910 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 751 MW → 1.09 GW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 11 → 16
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Buildings 12-16 are operational. Based on how long previous buildings took, when they were in a similar state to Buildings 12-16 in December.
    Source: Epoch AI
  8. Feb 11, 2026
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 442 MW → 425 MW
    Source: Epoch AI
  9. Jan 7, 2026
    AWS Berwick · PA
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 47 MW → 77 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 66 MW → 102 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 1 → 2
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Building 2 operational estimate. This is based on the progress visible in the September 2025 image. The DEP also issues an air plan approval to add 48 more emergency generators on this date.
    Source: Epoch AI
  10. Dec 23, 2025
    Anthropic-Amazon New Carlisle · IN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 398 MW → 626 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 478 MW → 751 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 7 → 11
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Buildings 8-11 are operational, given it's been over 7 months since their roofs were complete, and the backup generators and roof chimneys look complete. The roof is almost complete for Building 17 and 18.
    Source: Epoch AI
  11. Nov 7, 2025
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 268 MW → 340 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 348 MW → 442 MW
    Source: Epoch AI
  12. Oct 19, 2025
    Colossus 2 · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 1
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Battery facility looks complete (though more might be added). Turbines look connected up, minimal construction around them. We believe this state corresponds to the first compute cluster brought online at this site of…
    Source: Epoch AI
  13. Sep 18, 2025
    Anthropic Barber Lake · TX
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Construction started: Site grading and civil works begin.
    Source: Epoch AI
  14. Sep 17, 2025
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 340 MW → 268 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 442 MW → 348 MW
    Source: Epoch AI
  15. Sep 9, 2025
    AWS Berwick · PA
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 1
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Building 1 operational estimate. According to Google Earth Satellite Imagery from this date, Building 1 appears structurally complete and likely operational, while Building 2 is still missing two generators.
    Source: Epoch AI
  16. Jul 22, 2025
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 278 MW → 340 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 361 MW → 442 MW
    Source: Epoch AI
  17. Jun 23, 2025
    Amazon Madison Mega Site · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 5
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Buildings 1-5 are operational, based on roofs being completed 5 months ago and generators being installed by 2025-04-10.
    Source: Epoch AI
  18. Jun 23, 2025
    Anthropic-Amazon New Carlisle · IN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 7
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: Buildings 1-7 are operational. Based on all of the roofs being completed for over 5 months.
    Source: Epoch AI
  19. Jun 11, 2025
    Anthropic Lake Mariner · NY
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Construction started: Land clearing begins for Building 1 (AKA CB3).
    Source: Epoch AI
  20. Feb 28, 2025
    Colossus 2 · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Construction started: Land clearing begins next to the existing building.
    Source: Epoch AI
  21. Feb 17, 2025
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 139 MW → 278 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 181 MW → 361 MW
    Source: Epoch AI
  22. Sep 2, 2024
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current IT capacity: 35 MW → 139 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 45 MW → 181 MW
    Source: Epoch AI
  23. Aug 11, 2024
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Buildings operational: 0 → 1
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Status: Under construction → Operating + expanding
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.New capacity online: First significant/useful training workload on 25k H100s.
    Source: Epoch AI
  24. Apr 24, 2024
    Colossus 1 · TN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Construction started: Construction starts with a road added on site, retrofitting a former Electrolux building.
    Source: Epoch AI
  25. Feb 24, 2024
    Amazon Ridgeland · MS
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Construction started: Land clearing begins
    Source: Epoch AI
  26. Feb 9, 2024
    Anthropic-Amazon New Carlisle · IN
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Construction started: Land clearing begins in the northern section
    Source: Epoch AI