Lake Mariner expansion capacity targets
Company: TeraWulf - Project: Lake Mariner Anthropic AI Factory
The claim, verbatim
Lake Mariner is undergoing phased expansion to support HPC deployments with gross capacity of approximately 500 MW in the near term, with potential expansion to approximately 750 MW subject to NYISO approval
Source (primary)
TeraWulf 424B5 filed 2026-04-14 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “The campus is undergoing phased expansion to support additional HPC contracted deployments with gross capacity of approximately 500 MW in the near term, with potential expansion to approximately 750 MW, subject to additional approvals from the NYISO.”
How we checked this
Checked on September 15, 2026. The cited source supports every part of this claim.
The document describes the phased expansion to about 500 MW and the potential 750 MW subject to NYISO approvals.
Confirmed in the source:
- Lake Mariner is undergoing phased expansion to support HPC deployments
- Near-term gross capacity is approximately 500 MW
- Potential expansion to approximately 750 MW is subject to NYISO approvals
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1083301/000110465926043250/tm2611661-3_424b5.htm) in full (221,842 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms TeraWulf 424B5 filed 2026-04-14
Quote: “The campus is undergoing phased expansion to support additional HPC contracted deployments with gross capacity of approximately 500 MW in the near term, with potential expansion to approximately 750 MW, subject to additional approvals from the NYISO.”