Lake Mariner CB3 building energization
Company: TeraWulf - Project: Lake Mariner Anthropic AI Factory
What the later record shows
Delivered late · happened July 31, 2026
Only 81 critical IT MW were energized at June 30, 2026. That is 60 MW Core42 plus about 21 MW, so only part of CB-3 was energized after mid-May. The Q2 deck says CB-3 (42 MW) was operational, with 102 MW energized as of July 2026. The lease amendment also shifted CB-3 from Q2'26 to Q2-Q3'26.
“As of June 30, 2026, TeraWulf had energized 81 critical IT MW of HPC leasing capacity at the Lake Mariner Data Campus.”
2026-08-04 · TeraWulf 10-Q filed 2026-08-05 View cached copy (2026-08-31)Live source ↗
“102 MW Energized and Generating Lease Revenue as of July 2026 438 MW of Contracted Capacity Targeted for Energization by 1H27 CB - 3 Operational (Lake Mariner Data)”
2026-08-04 · Q2 2026 Earnings Update Presentation View cached copy (2026-09-01)Live source ↗Archive.org ↗
“rentalized CB - 3 Q2’26 Q2 - Q3’26 Monthly TFO Rent Increase +~$60MM Revenue (Over 10 - Year Lease)”
2026-08-04 · Q2 2026 Earnings Update Presentation View cached copy (2026-09-01)Live source ↗Archive.org ↗
Checked October 9, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
CB3 building phase (42 MW) energization expected mid-May 2026
Source (primary)
terawulf 8-K exhibit (a_wulfearningsrelease2026-.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-09-13)Live source ↗
Quote: “CB3 (42 MW) – Energization expected mid-May 2026”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The construction status table lists CB3 at 42 MW with energization expected mid-May 2026.
Confirmed in the source:
- Lake Mariner's CB3 building is 42 critical IT MW
- CB3 energization was expected in mid-May 2026
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1083301/000108330126000026/a_wulfearningsrelease2026-.htm) in full (26,590 characters, retrieved September 13, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms terawulf 8-K exhibit (a_wulfearningsrelease2026-.htm)
Quote: “CB3 (42 MW) – Energization expected mid-May 2026”
confirms TeraWulf 10-Q filed 2026-08-05
Quote: “As of June 30, 2026, TeraWulf had energized 81 critical IT MW of HPC leasing capacity at the Lake Mariner Data Campus.”
confirms Q2 2026 Earnings Update Presentation
Quote: “102 MW Energized and Generating Lease Revenue as of July 2026 438 MW of Contracted Capacity Targeted for Energization by 1H27 CB - 3 Operational (Lake Mariner Data)”