# TeraWulf Lake Mariner Data Campus

NYISO data center · https://askthegrid.com/assets/facilities/terawulf-lake-mariner-data-campus

TeraWulf's Lake Mariner Data Campus at 7725 Lake Road, Barker, Niagara County, New York, sits on the former Somerset coal plant site in NYISO Zone A. Bitcoin mining began in March 2022; as of June 30, 2026 the campus operated 145 MW of legacy mining capacity, which is being curtailed or repurposed. By July 2026, 102 MW of critical IT HPC capacity was energized for Core42 and Fluidstack, with 336 MW under construction across CB-4 and CB-5.

## Identity and location

- Operating status: operating
- Asset scope: campus
- Location: 7725 Lake Road, Barker, Niagara County, NY
- Operator: TeraWulf (campus) — https://www.lakemarinerdata.com

## Power and grid context

- Reported unspecified: 145 MW · reported · exact asset · as of 2026-06-30 — Legacy bitcoin mining capacity operated as of June 30, 2026; mining facilities are being curtailed or repurposed for HPC; basis unspecified.
- Critical it load: 102 MW · reported · exact asset — Critical IT HPC leasing capacity energized by July 2026 (Core42 60 MW plus Fluidstack CB-3).
- Critical it load: 336 MW · under_construction · building · CB-4 and CB-5 — Critical IT capacity under construction across CB-4 and CB-5 for Fluidstack; phased delivery from 2H 2026 into early 2027.
- Critical it load: 438 MW · reported · exact asset — Operator-reported contracted critical IT capacity of a 600 MW critical IT total.
- Balancing authority: NYISO

## Development

- Construction: Former Somerset coal plant site; bitcoin mining began March 2022, and HPC buildings CB-3 (delivered July 2026), CB-4 and CB-5 are being added in phases.

## Compute and operations

- Facility classes: crypto_mining, ai_hpc, colocation

## Sources

- [FRS Facility Detail Report | Envirofacts | US EPA](https://frs-public.epa.gov/ords/frs_public2/fii_query_dtl.disp_program_facility?p_registry_id=110072105895)
- [U.S. Census street-address geocode](https://geocoding.geo.census.gov/geocoder/geographies/onelineaddress?address=7725+Lake+Road%2C+Barker%2C+NY%2C+14012&benchmark=Public_AR_Current&vintage=Current_Current&format=json)
- [TeraWulf Reports Second Quarter 2026 Results :: TeraWulf Inc. (WULF)](https://investors.terawulf.com/news-events/press-releases/detail/144/terawulf-reports-second-quarter-2026-results)
- [February 27, 2026 - 10-K: Annual report [Section 13 and 15(d), not S-K Item 405] | TeraWulf Inc. (WULF)](https://investors.terawulf.com/sec-filings/all-sec-filings/content/0001083301-26-000031/wulf-20251231.htm)
- [August 5, 2026 - 10-Q: Quarterly report [Sections 13 or 15(d)] | TeraWulf Inc. (WULF)](https://investors.terawulf.com/sec-filings/all-sec-filings/content/0001083301-26-000166/wulf-20260630.htm)
- [Project Overview - Lake Mariner Data](https://www.lakemarinerdata.com/project-overview)
- [Our Sites | TeraWulf](https://www.terawulf.com/our-sites)

## Data quality

- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.
- Map point: approximate U.S. Census street-address geocode.

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Canonical page: https://askthegrid.com/assets/facilities/terawulf-lake-mariner-data-campus
Profile generated: 2026-10-09T16:44:56.411214Z
Source: Ask the Grid — https://askthegrid.com/