TeraWulf Lake Mariner Campus
Operational; TeraWulf is recorded as an owner of this site and is recorded as an operator of it
Description quoted from Epoch AI Frontier Data Centers
Built on the shores of Lake Ontario at a former coal plant, the Terawulf-owned Lake Mariner campus serves a mix of crypto-mining and AI computing applications. We only track the AI buildings here. Buildings 1-2 (70 MW) are leased to G42 subsidiary Core42, while Buildings 3-5 (440 MW) are leased to Fluidstack. Our sources point to Fluidstack's buildings serving Google TPUs for Anthropic. We named this site after Fluidstack because it has leased the vast majority of the AI capacity.
Source: Epoch AI Frontier Data Centers, CC BY 4.0
Site data: Epoch AI Frontier Data Centers.
Ownership and operation
Site owner
Which organisation holds the site?
Site operator
Which organisation runs it?
AI hardware owner
Which organisation owns the AI hardware inside it?
Site owner TeraWulf. “Led by a team of seasoned energy entrepreneurs, the Company owns and operates the Lake Mariner facility situated on the expansive site of a now retired coal plant in Western New York.” source
Site operator TeraWulf. “Led by a team of seasoned energy entrepreneurs, the Company owns and operates the Lake Mariner facility situated on the expansive site of a now retired coal plant in Western New York.” source
Recorded AI-hardware owner attribution withheld TeraWulf. The current version of the source names a different organisation; this attribution was read from an earlier version. source
Tenant attribution withheld · lead
Uses the compute (source marks likely)
Anthropicinferred
Tenant attribution withheld
Core42inferred
Export controls and government links
No export-control designations were found in the checked company chains.
Headquarters jurisdiction
A company in the ownership chain is headquartered in the United States
United States: Operates the Export Administration Regulations (EAR) and the BIS Entity List under 15 CFR 730–774; deemed-export rules extend reach to foreign nationals on US soil. Export-control regimes listed for this jurisdiction: Wassenaar Arrangement, US EAR (BIS Entity List authority).
Capacity
Facility power
Estimated.
Power for IT equipment
Accelerators
Power comparison
510 MW is at the 98th percentile among the 310 operating AI Training records with a reported power figure. These represent 84% of the 369 operating AI Training records tracked; announced, under-construction and campus build-out figures are not ranked. The scale ends at the largest operating figure in this group, 1,276 MW.
Methods and sources
Ownership roles
Title identifies the legal owner of the site; operation identifies who runs it. AI-hardware ownership follows the catalog’s attribution of the machines inside, whose owner may lease the facility.
Each role requires its own attribution. An operator named in a source supplies evidence of operation only.
Parent companies
Ownership checks start with each company named at the site and follow recorded parent relationships. A company holding several roles is checked once. Its linked company page lists the relationships and their sources; further parents may remain undocumented.
Level 1 identifies a company at the site, level 2 its parent, and each further level another parent. Export-control designations and government investments are assigned to the company concerned.
Missing values
Unrecorded roles remain blank. Findings whose company position is unresolved stay in the list with that position labelled unknown.
Publication limits
Subscription corporate data helps identify parent relationships and sovereign investments. Publication is limited to relationship classes and supporting public sources; licensed records, identifiers and values are withheld.
Epoch AI estimates capacity using satellite imagery, permits and corporate disclosures. Its catalog is the source for this site record.
Related analysis
- TeraWulf Lake Mariner Campus on the global mapOpens the map at this site’s pin, among the facilities around it.
- TeraWulf Lake Mariner Campus in the threshold comparisonEach listed site’s estimated compute against regulatory training thresholds, or the reason no estimate is admitted.
- Allied coordination: No documented gapThe Allied Coordination Gap Analyzer lists this site under that class of ownership chain.
- Counted in TeraWulf’s fleetNeocloud Landscape: TeraWulf’s 1 recorded site by build status.
- United States country profileFacility capacity, government programmes and export-control access for the country this site is in.
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