CB-1 20 MW AI/HPC building at Lake Mariner
Company: TeraWulf
What the later record shows
The date slipped · new target September 30, 2025
In October 2024 the company said CB-1's completion was expected in Q1 2025, not year-end 2024. A May 2025 presentation still listed CB-1 as contracted, not operating, and timed it for Q3 2025. No passage states when CB-1 was actually completed.
“Construction of CB-1, our 20 MW HPC/AI facility at Lake Mariner, is on track, with completion expected in Q1 2025.”
2024-10-03 · terawulf 8-K exhibit (wulfopsreportsep2410-03x.htm) View cached copy (2026-10-26)Live source ↗
“MB-5 40.0 50.0 40,000 operating WULF Den 2.0 2.5 6,000 contracted CB-1 16.0 20.0 61,000 contracted”
2025-05-08 · terawulf 8-K exhibit (wulfq12025investorpresvf.htm) View cached copy (2026-10-15)Live source ↗
“Q3 2025: 20 MW CB-1 ➢ Q4 2025: 50 MW CB-2 ➢ FYE 2026: incremental 177.5 MW (gross) expected to be available”
2025-05-08 · Investor Presentation View cached copy (2026-10-06)Live source ↗
Checked October 29, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
Construction of CB-1, TeraWulf's 20 MW AI/HPC colocation pilot building at Lake Mariner, is advancing as planned with targeted completion and operation by year-end 2024.
Source (primary)
terawulf 8-K exhibit (wulfopsreport-202408aug2.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-10-29)Live source ↗
Quote: “construction of CB-1, our 20 MW AI/HPC building at Lake Mariner, is advancing as planned, with targeted completion by year-end”
How we checked this
This claim has not yet been checked assertion-by-assertion against its source. It carries a cited source and quote, but the deeper check has not run. When it does, the result appears here whatever it says.
Additional evidence
confirms terawulf 8-K exhibit (wulfopsreport-202408aug2.htm)
Quote: “construction of CB-1, our 20 MW AI/HPC building at Lake Mariner, is advancing as planned, with targeted completion by year-end”
delays Investor Presentation
Quote: “Q3 2025: 20 MW CB-1 ➢ Q4 2025: 50 MW CB-2 ➢ FYE 2026: incremental 177.5 MW (gross) expected to be available”
delays terawulf 8-K exhibit (wulfq12025investorpresvf.htm)
Quote: “MB-5 40.0 50.0 40,000 operating WULF Den 2.0 2.5 6,000 contracted CB-1 16.0 20.0 61,000 contracted”
delays terawulf 8-K exhibit (wulfopsreportsep2410-03x.htm)
Quote: “Construction of CB-1, our 20 MW HPC/AI facility at Lake Mariner, is on track, with completion expected in Q1 2025.”