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Lake Mariner Anthropic AI Factory

Project of TeraWulf

Kind
datacenter
Location
Lake Mariner, NY
County
Niagara
State/region
NY
Country
United States
Declared cost
$3.5 billion (financing target for Anthropic-leased facility, per July 13, 2026 headline)
Announced
2026-07-09
Status
under construction

Capacity

What has actually been delivered, against what has been promised. Each figure links to the statement it came from.

StageCapacityAs ofSource
Energized power flowing today245 MW2026-09-01Lake Mariner bitcoin mining capacity
Contracted a customer is on the hook750 MW2025-08-13Somerset-Brookings power and infrastructure capacity
Under construction750 MW2026-07-29750 MW AI Factory campus
Permitted--
Interconnect approved utility has agreed to deliver--
Interconnect requested in a queue, nothing approved--
Announced a press-release figure750 MW2026-09-01Lake Mariner power availability

Who has claimed this site

Capacity commitments in the order they were announced. A commitment that ended shows why.

2025-05-08
Core42 - tenant · 72.5 MW · 10-year term source
2025-08-13
Fluidstack - tenant · 450 MW · 10-year term source
2025-08-13
Google - guarantor source
2026-09-01
New York Power Authority - offtaker · 90 MW source
2026-09-01
Core42 - guarantor source

Claims about this project

2024-10-09 - stated
20 million shares issued to Riesling Power 20.0 shares.
2024-10-09 - stated
Somerset facility size: 157 acres 157.0 acres.
2024-10-09 - stated
Beowulf continues as exclusive operator.
2024-10-09 - stated
Board observer rights for Somerset 15.0 shares.
2024-10-09 - stated
Annual lease rent for Somerset Premises 281398.2 USD.
2024-10-09 - stated
$12 million cash payment to Riesling Power 12.0 USD.
2024-10-09 - stated
Lease termination consideration payment to Riesling Power LLC 12.0 USD.
2024-10-09 - stated
35-year lease in Somerset, New York 35.0 years.
2025-10-13 - stated
Senior secured notes offering 3200000000.0 USD.
2025-10-13 - stated
Senior secured notes offering 3.2 USD.
2025-10-15 - delayed
Senior secured notes offering by WULF Compute LLC 3200.0 Million USD. Promised by 2025-10-23.
2025-10-22 - stated
Lake Mariner Data Center Expansion - Barker, NY.
2025-10-22 - stated
Completion Guarantee for Data Center Expansion.
2025-10-22 - stated
$3.2B Senior Secured Notes - 7.75% due 2030 3200.0 million USD. Promised by 2030-10-15.
2026-02-26 - stated
Lake Mariner Data Campus expansion capacity 500.0 MW.
2026-02-26 - stated
Lake Mariner potential expansion to 750 MW 750.0 MW.
2026-02-26 - stated
New York Power Authority long-term power supply agreement 90.0 MW.
2026-02-26 - stated
Lake Mariner near-term expansion to 500 MW 500.0 MW.
2026-02-26 - stated
Lake Mariner near-term and potential long-term expansion capacity 500.0 MW.
2026-02-26 - stated
New York Power Authority power supply agreement for Lake Mariner 90.0 MW.
2026-04-13 - stated
Lake Mariner expansion capacity targets 500.0 MW.
2026-04-13 - stated
Lake Mariner Data Campus current operational capacity 60.0 MW.
2026-04-13 - stated
New York Power Authority power supply agreement 90.0 MW.
2026-04-13 - stated
La Lupa and Akela contracted critical IT capacity 438.0 MW.
2026-04-14 - stated
New York Power Authority power agreement 90.0 MW.
2026-04-14 - stated
Lake Mariner expansion capacity target 500.0 MW.
2026-04-14 - stated
Lake Mariner contracted HPC capacity 438.0 MW.
2026-04-15 - stated
La Lupa and Akela contracted capacity 438.0 MW.
2026-04-15 - stated
New York Power Authority power supply agreement 90.0 MW.
2026-04-15 - stated
Lake Mariner expansion capacity 500.0 MW.
2026-07-09 - stated
Anthropic 20-year lease 20 years.
2026-07-13 - stated
$3.5B financing for Anthropic-leased data center 3500000000 USD.
2026-07-15 - revised
Initial Anthropic deal capacity: 410 MW 410 MW.
2026-07-29 - stated
750 MW AI Factory campus 750.0 MW.
2026-08-03 - stated
Expanded campus target: 750 MW AI Factory 750 MW.
2026-08-21 - stated
Lake Mariner operating capacity 102.0 MW.
2026-08-21 - stated
Lake Mariner under-construction capacity 336.0 MW.
2026-08-21 - stated
Lake Mariner capacity under construction 336.0 MW.
2026-08-21 - stated
Lake Mariner revenue-generating capacity.
2026-08-24 - stated
Lake Mariner operational capacity in New York 102.0 MW.
2026-08-24 - stated
Lake Mariner operating capacity.
2026-08-24 - stated
Lake Mariner and Kentucky projects.
2026-08-24 - stated
Lake Mariner capacity under construction 336.0 MW.
2026-08-24 - stated
Lake Mariner capacity under construction 336.0 MW.
2026-08-24 - stated
Lake Mariner existing revenue-generating capacity 102.0 MW.
2026-08-31 - stated
Fluidstack Lake Mariner partnership 8700000000.0 USD.
2026-09-01 - delayed
WULF Den Revenue. Promised by 2025-07-31.
2026-09-01 - stated
Fluidstack HPC lease contract - 366 MW 366.0 MW. Promised by 2026-12-31.
2026-09-01 - stated
Lake Mariner Lease Amendments 500.0 USD.
2026-09-01 - stated
Lake Mariner CB-5 Delivery 168.0 MW. Promised by 2027-03-31.
2026-09-01 - delayed
CB-1 HPC facility operational launch 20.0 MW. Promised by 2025-03-31.
2026-09-01 - stated
Lake Mariner CB-4 Delivery 168.0 MW. Promised by 2026-12-31.
2026-09-01 - stated
Lake Mariner expansion 162.0 MW.
2026-09-01 - stated
$3.2B Senior Secured Green Notes due 2030 3200.0 USD. Promised by 2030-12-31.
2026-09-01 - stated
Fluidstack lease at Lake Mariner 450.0 MW. Promised by 2026-12-31.
2026-09-01 - delayed
CB-1 Revenue. Promised by 2025-08-15.
2026-09-01 - stated
Core42 lease at Lake Mariner 72.5 MW.
2026-09-01 - delayed
CB-2 delivery timeline. Promised by 2025-12-31.
2026-09-01 - delayed
CB-2 Delivery. Promised by 2025-12-31.
2026-09-01 - delayed
WULF Den Operational. Promised by 2025-06-30.
2026-09-01 - delayed
Core42 Capacity Lease 72.5 MW. Promised by 2025-12-31.
2026-09-01 - stated
Core42 Parent Company Guarantee.
2026-09-01 - delayed
HPC Project Financing Execution. Promised by 2025-07-01.
2026-09-01 - delayed
MB-5 Mining Expansion Online 50.0 MW. Promised by 2025-04-30.
2026-09-01 - stated
Total Lake Mariner HPC Potential Capacity 750.0 MW.
2026-09-01 - stated
Core42 HPC Data Center Lease 60.0 MW.
2026-09-01 - delayed
Lake Mariner bitcoin mining capacity 245.0 MW. Promised by 2025-12-31.
2026-09-01 - stated
Bitcoin mining fleet size and composition 54100.0 units.
2026-09-01 - stated
NYPA long-term power allocation 90.0 MW.
2026-09-01 - stated
Lake Mariner HPC capacity energized 18.0 MW.
2026-09-01 - stated
Lake Mariner Data Campus expansion progress.
2026-09-01 - stated
Lake Mariner - 500 MW near-term expansion target 500.0 MW.
2026-09-01 - stated
Lake Mariner full buildout power demand capacity 750.0 MW.
2026-09-01 - stated
Lake Mariner Campus financing scope total capacity 522.5 MW.
2026-09-01 - stated
Lake Mariner campus full buildout capacity 750.0 MW.
2026-09-01 - stated
CB-5 delivery Q4 2026 168.0 MW. Promised by 2026-12-31.
2026-09-01 - stated
CB-4 delivery Q3 2026 168.0 MW. Promised by 2026-09-30.
2026-09-01 - delayed
CB-3 delivery May 2026 42.0 MW. Promised by 2026-05-31.
2026-09-01 - delayed
CB-2B delivery Q1 2026 21.0 MW. Promised by 2026-03-31.
2026-09-01 - stated
Lake Mariner additional capacity online 2H26-1H27 200.0 MW. Promised by 2027-06-30.
2026-09-01 - delayed
CB-2 data center online. Promised by 2025-12-31.
2026-09-01 - stated
Lake Mariner power availability 750.0 MW.
2026-09-01 - stated
Lake Mariner capacity delivery 360.0 MW. Promised by 2026-12-31.
2026-09-01 - stated
Fluidstack 10-year leases. Promised by 2035-08-18.
2026-09-01 - delayed
WULF Den HPC Deployment Q2 2025 2.5 MW. Promised by 2025-06-30.
2026-09-01 - stated
Lake Mariner bitcoin mining capacity 245.0 MW.
2026-09-01 - delayed
Lake Mariner HPC leasing capacity 18.0 MW. Promised by 2025-12-31.
2026-09-01 - delayed
Long-term HPC datacenter lease agreements. Promised by 2024-12-01.
2026-09-01 - delayed
CB-1 HPC Deployment Q3 2025 20.0 MW. Promised by 2025-09-30.
2026-09-01 - delayed
CB-2 HPC Deployment Q4 2025 50.0 MW. Promised by 2025-12-31.
2026-09-01 - delayed
Additional capacity availability 2H 2025 178.0 MW. Promised by 2025-12-31.
2026-09-01 - stated
Future capacity expansion design 250.0 MW.
2026-09-01 - delayed
HPC Capacity Expected Online 2025 60.0 MW. Promised by 2025-12-31.
2026-09-01 - stated
Future HPC Expansion by FYE 2026 177.5 MW. Promised by 2026-12-31.
2026-09-01 - stated
Beyond 2026 HPC Expansion Potential 250.0 MW.
2026-09-01 - stated
Core42 HPC lease contract - 60 MW 60.0 MW. Promised by 2026-12-31.
2026-09-01 - stated
Lake Mariner facility expansion target 500.0 MW.
2026-09-01 - stated
Project financing assumption for CB-1 and CB-2 70.0 percent.
2026-09-01 - stated
HPC revenue prepayment assumption 1.5 million USD per MW.
2026-09-01 - delayed
CB-2 HPC facility operational launch 50.0 MW. Promised by 2025-06-30.