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What changed — Lake Mariner Data LLC

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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. Subscribe to the feed in any RSS reader to follow a facility, state or company.

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  1. Jul 23, 2026
    Core42 Lake Mariner · NY
    • Status: Operating + expanding → Operating
    Source: Epoch AI
  2. May 31, 2026
    Anthropic Lake Mariner · NY
    • Buildings operational: 0 → 1
    • Status: Under construction → Operating + expanding
    • 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. Mar 31, 2026
    Core42 Lake Mariner · NY
    • Current IT capacity: 16 MW → 58 MW
    • Current facility power: 19 MW → 58 MW
    • Buildings operational: 1 → 2
    • New capacity online: Building 2 is operational. On February 26, Terawulf stated that CB2A is operational, presumably making up half the final capacity. CB2B was expected in March 2026. However, it's notable that a drone video commissioned…
    Source: Epoch AI
  4. Oct 1, 2025
    Core42 Lake Mariner · NY
    • Buildings operational: 0 → 1
    • Status: Under construction → Operating + expanding
    • New capacity online: Building 1 is operational. Based on Terawulf saying "As of September 30, 2025, the site has energized 245 MW of Bitcoin-mining capacity and 22.5 MW of HPC capacity." The small "Wulf Den" building was said to be 2 MW o…
    Source: Epoch AI
  5. Jun 11, 2025
    Anthropic Lake Mariner · NY
    • Construction started: Land clearing begins for Building 1 (AKA CB3).
    Source: Epoch AI
  6. Oct 1, 2024
    Core42 Lake Mariner · NY
    • Construction started: Land clearing begins for Building 1, also known as CB-1, the first large AI/HPC building on the site.
    Source: Epoch AI
  7. Jan 23, 2024
    Anthropic Lake Mariner · NY
    • Permit / site plan filed: NYISO load interconnection request 1670 filed (250 MW).
    Source: New York ISO
  8. Jan 23, 2024
    Core42 Lake Mariner · NY
    • Permit / site plan filed: NYISO load interconnection request 1670 filed (250 MW).
    Source: New York ISO