Supercomputers/Systems/Lake Mariner (Fluidstack)
USA · under construction · mixed
Lake Mariner (Fluidstack)
Also known as TeraWulf Lake Mariner HPC campus
Operated by Fluidstack at TeraWulf Lake Mariner Campus .
Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.
Measured performance
- Rmax
- -
- Rpeak
- -
- Rmax ÷ Rpeak
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- Cores
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- Power
- -
- Per watt
- - GF/W
Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.
What this machine is made of
One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.
| Role | Part | Supplier at build | Quantity | Confidence | Source |
|---|---|---|---|---|---|
| Integrator | - TeraWulf develops the Lake Mariner campus and leases critical IT load to Fluidstack (380 MW) and Core42 (60 MW) | TeraWulf | - | Reported | investors.terawulf.com |
| Integrator | - Fluidstack is the lessee of 380 MW of critical IT load, with Google credit support for its lease obligations | Fluidstack | - | Reported | investors.terawulf.com |
AI datacenter metrics
Figures beyond an accelerator count, each with who stated it. What can and cannot be compared across AI datacenters.
| Metric | Value | As of | Basis | Note | Source |
|---|---|---|---|---|---|
| IT power | 102 MW | 2026-07 | Operator stated | TeraWulf Q2 2026: 102 MW critical IT after CB-3 delivery in early July 2026; 336 MW more under construction in CB-4 and CB-5. Whole campus. | investors.terawulf.com |
Compute deals
- 2025-08-18: Fluidstack and TeraWulf (datacenter lease , 160 MW). sec.govsec.gov
- 2025-08-14: Fluidstack and TeraWulf (datacenter lease , 200 MW, headline $3.7bn). sec.govsec.gov
All compute deals. Headline values are as announced, not additive.
The read
TeraWulf's Lake Mariner campus in western New York, where Fluidstack leases 380 MW of critical IT load with Google credit support (TeraWulf's Q4 2025 results), alongside a 60 MW Core42 lease; the campus is targeted at up to 750 MW gross HPC capacity. TeraWulf's Q2 2026 release reports 81 MW of revenue-generating critical IT at 30 June 2026, 102 MW after CB-3 delivery in early July, and 336 MW more under construction in CB-4 and CB-5, with first CB-4 delivery in the second half of 2026 and CB-5 in early 2027. The 102 MW figure covers the campus rather than Fluidstack alone, and no accelerator type is named. Both sources are TeraWulf's own, so the tier is reported.
Timeline
No dated events recorded.
Site & facility
Change history
- 2026-10-02 Added Lake Mariner (Fluidstack)
Source check
We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.
| Cited source | Result | Found on the page |
|---|---|---|
| investors.terawulf.com | names system only | - |
| investors.terawulf.com | names system only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.