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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.
2023-122026-11
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  1. Oct 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.Current IT capacity: 42 MW → 210 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Current facility power: 49 MW → 245 MW
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Compute (H100-equivalents): 58,600 → 292,800
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Capital cost / investment: $1.6B → $8B
    • 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 (AKA CB4) is operational. On February 26, Terawulf stated that CB4 was expected to be energized by Q3 2026.
    Source: Epoch AI
  2. 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
  3. 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