Lake Mariner Data
7725 Lake Rd, Barker, NY, 14012, US
Power capacity
438 MW
Lake Mariner occupies the retired Somerset Generating Station site at Barker in Niagara County, which is why a coal plant's interconnection now backs an AI campus. TeraWulf runs it: 245 MW of bitcoin mining and 18 MW of critical IT capacity were energised at the end of 2025, against 438 MW contracted through two subsidiaries to Core42 and to Fluidstack under a Google-supported agreement. Ninety megawatts come from a ten-year New York Power Authority supply signed in February 2022, in NYISO Zone A, with room to grow toward 500 MW.
Facility Specifications
Site information
- Power capacity
- 438 MW contracted; 245 MW mining and 18 MW critical IT energised at 31 Dec 2025
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Frequently asked questions
How much capacity is contracted at Lake Mariner?
438 MW of critical IT capacity across La Lupa Data and Akela Data. Energised capacity at 31 December 2025 was 18 MW of critical IT alongside 245 MW of legacy bitcoin mining.
Which tenants have taken capacity at the Barker campus?
Core42 for 60 MW through La Lupa Data, and Fluidstack for 378 MW through Akela Data, an agreement credit-supported by Google.
What powers the Lake Mariner campus?
NYISO Zone A, including 90 MW under a ten-year New York Power Authority agreement executed in February 2022. Growth beyond 500 MW toward 750 MW needs further NYISO approvals.
What stood on the Lake Mariner site before?
The Somerset Generating Station, a retired coal plant on Lake Ontario. Its interconnection is the reason the site carries more than 400 MW.