Data Center Atlas
TeraWulf Lake Mariner Data Campus
Partially operational Under construction
United States · 2 projects · Last reported
Summary
Lake Mariner CB-5 Current Build
The August 5 issuer update identifies CB-4 and CB-5 construction as continuing. CB-3 was delivered in early July; CB-5 delivery remains future. evidence
TeraWulf Inc. · published 2026-08-05T11:00:00Z
TeraWulf Lake Mariner data campus
TeraWulf campus on the site of a retired coal-fired power plant in Barker, New York, that began operating in 2022, has hosted bitcoin mining and is being expanded for high-performance computing for AI. TeraWulf has leased 60 MW of critical IT load to Core42 and about 378 MW to Fluidstack, whose lease obligations carry Google credit support. About 102 MW of HPC capacity was earning revenue after building CB-3 was delivered in July 2026, while CB-4 and CB-5 (336 MW combined) were under construction. TeraWulf cites about 500 MW of near-term gross capacity and potential to reach about 750 MW.
Source record as of 2026-08-05 · Details and sources
Location
The interactive map needs JavaScript. Display anchor: 43.34894, -78.60291 (Point locator, WGS 84).
View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser
Project locator; building footprints are not mapped.
Projects (2)
Lake Mariner CB-5 Current Build
Under construction last observed as of · Authoritative status update
Source and location review
- Status source
- TeraWulf reports continuing CB-5 construction at Lake Mariner evidence row
TeraWulf Inc. · published 2026-08-05T11:00:00Z · Company disclosure - Locator
- Project locator · Official source · official_project_street_address_locator evidence
- Source checks
Not reviewed against imagery not_
reviewed_ for_ core_ preview
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verificationStatus age at review: 83 days before the data update on 2026-10-27
TeraWulf Lake Mariner data campus
Partially operational last observed as of · Reported status
Location: Barker, Niagara County, New York, US. Village coordinates from Wikipedia. The 10-K places the campus on a retired coal-fired plant site in Barker, on about 157 leased acres in Niagara County, but the sources reviewed give no exact site position. U.S. Securities and Exchange Commission (TeraWulf filing); Wikipedia
Use: Ai unspecified, Hpc, Crypto mining
Capacity, investment and other figures
| Measure | Value | Scope | As of | Notes | Sources |
|---|---|---|---|---|---|
| Power capacity | 60 MW | Contracted · Phase · It load · Core42 leases | 2025-12-31 | U.S. Securities and Exchange Commission (TeraWulf filing); TeraWulf | |
| Power capacity | 378 MW | Contracted · Phase · It load · Fluidstack leases | 2025-12-31 | Per the 10-K; TeraWulf's February 2026 results list Fluidstack at 380 MW. | U.S. Securities and Exchange Commission (TeraWulf filing); TeraWulf |
| Power capacity | 102 MW | Operational · Campus · It load | 2026-07 | Revenue-generating HPC capacity after CB-3 was delivered in early July 2026. | TeraWulf |
| Power capacity | 336 MW | Under construction · Phase · It load · CB-4 and CB-5 | 2026-08-05 | TeraWulf | |
| Power capacity | about 500 MW | Planned · Campus · Facility | 2025-12-31 | Near-term gross capacity as described in the 10-K. | U.S. Securities and Exchange Commission (TeraWulf filing) |
| Power capacity | up to 750 MW | Planned · Campus · Facility | 2025-12-31 | Potential gross capacity after expansion, subject to further NYISO approvals. | U.S. Securities and Exchange Commission (TeraWulf filing); TeraWulf |
| Power capacity | 245 MW | Operational · Campus · Unspecified | 2025-12-31 | Legacy bitcoin mining capacity at the campus as of December 31, 2025; TeraWulf reported 245 MW of total Lake Mariner capacity in May 2025. | U.S. Securities and Exchange Commission (TeraWulf filing); TeraWulf |
Companies and organizations
| Name | Role | Notes | Sources |
|---|---|---|---|
| TeraWulf | Developer | U.S. Securities and Exchange Commission (TeraWulf filing) | |
| TeraWulf | Operator | U.S. Securities and Exchange Commission (TeraWulf filing) | |
| Fluidstack | Tenant | Leases for about 378 MW of critical IT load entered in August 2025; Google provides credit support for Fluidstack's lease obligations. | TeraWulf; TeraWulf; U.S. Securities and Exchange Commission (TeraWulf filing) |
| Core42 | Tenant | Lease for 60 MW of critical IT load entered in December 2024. | U.S. Securities and Exchange Commission (TeraWulf filing); TeraWulf |
| New York Power Authority | Power supplier | 90 MW allocation under an agreement executed in February 2022, with a ten-year term from NYPA's initial power delivery. | U.S. Securities and Exchange Commission (TeraWulf filing) |
Timeline
| Date | Event | Actual or planned | Notes | Sources |
|---|---|---|---|---|
| 2022-03 | First operational | Actual | Operations at the campus commenced. | U.S. Securities and Exchange Commission (TeraWulf filing) |
| 2024-12 | Other | Actual | Core42 lease for 60 MW of critical IT load entered. | U.S. Securities and Exchange Commission (TeraWulf filing) |
| 2025-08-14 | Other | Actual | Fluidstack signed two 10-year HPC colocation agreements for more than 200 MW of critical IT load, with Google backstopping $1.8 billion of lease obligations. | TeraWulf |
| 2025-08-18 | Expansion announced | Actual | A CB-5 lease raised Fluidstack's commitment to about 360 MW of critical IT load; the Google backstop rose to about $3.2 billion. | TeraWulf |
| 2026-07 | Other | Actual | CB-3 delivered, meeting the conditions for $600 million of Google credit support to take effect. | TeraWulf |
| 2026-H2 | Other | Planned | Phased delivery and rent commencement for CB-4. | TeraWulf |
| 2027-H1 | Other | Planned | CB-5 targeted to begin phased delivery in early 2027. | TeraWulf |
Power supply
| Type | Description | Sources |
|---|---|---|
| Grid | Connection to the NYISO Zone A grid over dual 345 kV lines, with power described as predominantly zero-carbon and a 90 MW New York Power Authority allocation. | TeraWulf; U.S. Securities and Exchange Commission (TeraWulf filing) |
Sources for these details
- TeraWulf Reports First Quarter 2025 Results — TeraWulf; 2025-05-09
- TeraWulf Signs 200+ MW, 10-Year AI Hosting Agreements with Fluidstack — TeraWulf; 2025-08-14
- TeraWulf Announces Fluidstack Expansion with 160 MW CB-5 Lease at Lake Mariner — TeraWulf; 2025-08-18
- TeraWulf Inc. Form 10-K for the fiscal year ended December 31, 2025 — U.S. Securities and Exchange Commission (TeraWulf filing); 2026-02-27 · Archived source
- TeraWulf Reports Fourth Quarter and Full Year 2025 Results — TeraWulf; 2026-02-26
- TeraWulf Reports Second Quarter 2026 Results — TeraWulf; 2026-08-05
- Barker, Niagara County, New York — Wikipedia; publication date not stated
- Companies
- Developer: TeraWulf (unknown scope) evidence
- Operator: TeraWulf (unknown scope) evidence
- Tenant: Fluidstack (unknown scope) evidence
- Tenant: Fluidstack (unknown scope) evidence
- Tenant: Fluidstack (unknown scope) evidence
- Tenant: Core42 (unknown scope) evidence
- Tenant: Core42 (unknown scope) evidence
- Power Supplier: New York Power Authority (unknown scope) evidence
Source and location review
- Status source
- TeraWulf Reports Second Quarter 2026 Results evidence row
TeraWulf · published 2026-08-05 · Company disclosure - Locator
- Locality reference only · Compiled location reference · locality evidence
- Source checks
Not reviewed against imagery not_
reviewed
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verificationStatus age at review: 83 days before the data update on 2026-10-27
Location details
- Coordinates
- 43.34894, -78.60291
- Geometry licence
- no-open-redistribution-license-asserted
- Use scope
- Project locator
- Scope class
- official_project_street_address_locator
- Authority
- Official source
- Source entity
- Project
- Method
- exact_issuer_defined_CB5_address_Census_NAD83_to_WGS84_pyproj_3_8_0
- Derivation
- official_census_street_address_range_interpolation
- Precision scope
- Exact source-bound CB-5 postal-address interpolation along Lake Road. It is not the physical CB-5 building position, entrance, centre, construction footprint, surveyed parcel or campus boundary. No interior-campus position is claimed.
- Horizontal uncertainty
Not reported
Census provides no site-specific accuracy for the address-range interpolation.
- Geometry evidence
- 05fc7a75 4aa18999 8d8b2825
A locator places the site on the map. It is not a building footprint, a construction extent or a surveyed boundary unless the use scope is an official boundary, and even then it is a parcel or permit boundary.
Evidence
Sources are linked, not redistributed; each keeps its own terms. An archived copy is a lookup for the Wayback Machine capture nearest the retrieval date and may be unavailable or differ from what was reviewed. Each hash states what it covers; imported factual records are not publisher-page captures.
| Title | Publisher | Roles | Published | Retrieved | Licence | Attribution | Content hash (SHA-256) |
|---|---|---|---|---|---|---|---|
| Barker, Niagara County, New York Archived copy | Wikipedia Other | Imported: Geometry, Imported: Record | not stated | source-terms-not-recorded | Wikipedia | 44613d91803e705fc4a9b21e1b0721ffe11c74f36a87854c544fe7080e1cb198Factual source record; not the publisher page | |
| Census exact address-range match for CB-5's issuer-defined address Archived copy | U.S. Census Bureau Government record | Site distinctness context, Geometry | not stated | no-open-redistribution-license-asserted | U.S. Census Bureau | 38d5769f311532ae8b21ec52eb7a899aae17342bfbc6bd68b631c603c43f5936Retained source material; see source provenance | |
| Census FAQ identifies source datum and interpolation semantics Archived copy | U.S. Census Bureau Government record | Site distinctness context, Geometry | not stated | no-open-redistribution-license-asserted | U.S. Census Bureau | 13a8ca9f7395daf53e0c06344dd2f1ed28bc6806ab0625b3410eba7e280db169Retained source material; see source provenance | |
| Census public-use and geographic-product attribution guidance Archived copy | U.S. Census Bureau Government record | Site distinctness context, Geometry | not stated | no-open-redistribution-license-asserted | U.S. Census Bureau | 4d16fd3c768e6921ca07773f0d5ffa4527b27a9e4f423810d6135807692856a1Retained source material; see source provenance | |
| Historical Lake Mariner real-property address corroboration Archived copy | TeraWulf Inc. Company disclosure | Site distinctness context | not stated | all-rights-reserved | TeraWulf Inc. | f6ad06510d8d6414423422760d275eaa6f4637513de9821081d8880b6d88c53dRetained source material; see source provenance | |
| Issuer index chronology checked for Lake Mariner successors Archived copy | TeraWulf Inc. Company disclosure | Site distinctness context | not stated | all-rights-reserved | TeraWulf Inc. | ce1c3ebc1ef8a8b1f0a9c0cd3e87c67c13c125b2dd365ca235e364edd86c6b06Retained source material; see source provenance | |
| Issuer legal definition binds CB-5 to 7725 Lake Road Archived copy | TeraWulf Inc. Company disclosure | Geometry identity context, Site distinctness context | all-rights-reserved | TeraWulf Inc. | 60298a47ea22293cfa47f15654c09b1061a98ebd627e0f47610f7bcb91a6b8c8Retained source material; see source provenance | ||
| TeraWulf Announces Fluidstack Expansion with 160 MW CB-5 Lease at Lake Mariner Archived copy | TeraWulf Company disclosure | Imported: Record, Milestone: Expansion Announced, Tenant claim | source-terms-not-recorded | TeraWulf | 8b49ecbfc17a39b9eba4d7c41f77783dc32787105df0d495155227770c13af52Factual source record; not the publisher page | ||
| TeraWulf Inc. Form 10-K for the fiscal year ended December 31, 2025 Archived copy | U.S. Securities and Exchange Commission (TeraWulf filing) Regulatory filing | Imported: Geometry, Imported: Record, Metric: Power Capacity, Milestone: First Operational, Milestone: Other, Power Source: Grid, Role: Developer, Operator claim, Role: Power Supplier, Tenant claim | source-terms-not-recorded | U.S. Securities and Exchange Commission (TeraWulf filing) | e334cb93b63e7a8a284a828109f8b1c4c2d5ba6224accc92ae4068b1d1a9c18cFactual source record; not the publisher page | ||
| TeraWulf reports continuing CB-5 construction at Lake Mariner Archived copy | TeraWulf Inc. Company disclosure | Geometry identity context, Site distinctness context, Physical status | all-rights-reserved | TeraWulf Inc. | 15f820d02c6586538ea55972ad77a9a1ad33a94df22bedf11b08e32bea0ae539Retained source material; see source provenance | ||
| TeraWulf Reports First Quarter 2025 Results Archived copy | TeraWulf Company disclosure | Imported: Record, Metric: Power Capacity | source-terms-not-recorded | TeraWulf | 3382ce70cf12f3b97fd520ff1386e31ce5460178a00eae4fb9ea1791776879c2Factual source record; not the publisher page | ||
| TeraWulf Reports Fourth Quarter and Full Year 2025 Results Archived copy | TeraWulf Company disclosure | Imported: Record, Metric: Power Capacity, Tenant claim | source-terms-not-recorded | TeraWulf | 80d020075e7f25af3b37485bbcaf3591ef2f42b80479d8e73979348077935264Factual source record; not the publisher page | ||
| TeraWulf Reports Second Quarter 2026 Results Archived copy | TeraWulf Company disclosure | Imported: Record, Imported: Status, Metric: Power Capacity, Milestone: Other | source-terms-not-recorded | TeraWulf | 2b198b8dab852689a5fc2e7884f7bec407d1ef0af69ed6b4415c8b72e39ccac3Factual source record; not the publisher page | ||
| TeraWulf Signs 200+ MW, 10-Year AI Hosting Agreements with Fluidstack Archived copy | TeraWulf Company disclosure | Imported: Record, Milestone: Other, Power Source: Grid, Tenant claim | source-terms-not-recorded | TeraWulf | 9a4ac37607a9f8f842cb3017431d76d5d15b526610f0fd187c119ffa9acf3ee8Factual source record; not the publisher page |
Cite this site
Kyars, K. (2026). TeraWulf Lake Mariner Data Campus [site vcc-site-88b1acf055e1ab6200e4]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-88b1acf055e1ab6200e4/
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