Core42 Lake Mariner
Running (some may still be expanding)
Core42 Lake Mariner is an AI data center in Barker, New York, developed or operated by Core42 for G42. Satellite imagery shows its computers drawing about 58 MW today.
U.S. average: 18.2¢ (+3.4%).
Statewide context, not this project’s effect: prices move for many reasons. Source: U.S. Energy Information Administration.
Satellite figures are Epoch AI estimates from imagery of buildings, cooling and power equipment; about 80% fall within a factor of 1.4 of the true value.
- Jul 23, 2026Satellite analysis by Epoch AI · 58 MW in use
Both buildings still operational according to satellite imagery.
- Mar 31, 2026Satellite analysis by Epoch AI · 58 MW in use
Building 2 is operational. On February 26, Terawulf stated that CB2A is operational, presumably making up half the final capacity. CB2B was expected in March 2026. However, it's notable that a drone video commissioned from RAAD showed no cooling fan movement on May 8th, suggesting it was not in use. This building is leased to Core42, a subsidiary of UAE-based G42. It likely uses NVIDIA DGX B200 servers.
- Mar 2, 2026Satellite analysis by Epoch AI · 16 MW in use
Buildings 1 and 2 both appear to have complete building and cooling equipment, based on satellite imagery. Not considering Building 2 operational yet, due to Terawulf's statement that CB2B is expected in March 2026, and is likely still in commissioning phase.
- Oct 1, 2025Satellite analysis by Epoch AI · 16 MW in use
Building 1 is operational. Based on Terawulf saying "As of September 30, 2025, the site has energized 245 MW of Bitcoin-mining capacity and 22.5 MW of HPC capacity." The small "Wulf Den" building was said to be 2 MW of IT power while CB-1 would be 16 MW. This is roughly consistent with 22.5 MW of total facility power. This building is leased to Core42, a subsidiary of UAE-based G42. It likely uses NVIDIA DGX B200 servers.
- Oct 1, 2024Satellite analysis by Epoch AI · 0 MW in use
Land clearing begins for Building 1, also known as CB-1, the first large AI/HPC building on the site.
No hearings, court cases, approvals or disputes are on record for this project yet.
| Chip | Designer | Units | As of | Count is |
|---|---|---|---|---|
| B200 | Nvidia | 28,463 | Mar 31, 2026 | Estimate |
Source: Epoch AI, AI data centers, CC BY 4.0
Satellite and capacity estimates via Epoch AI (CC BY 4.0)
- Terawulf press release with details of Core42 lease for Buildings 1-2 investors.terawulf.com
- Terawulf press release with details and timeline for Buildings 1-5 investors.terawulf.com
- DCD article suggesting that Fluidstack will deploy Google TPUs at Lake Mariner datacenterdynamics.com
- Announcement of Anthropic-Fluidstack partnership, including data center(s) in New York anthropic.com
- Epoch AI calculation sheet for this site
Satellite estimates: Epoch AI, CC BY 4.0, reformatted for this page.