The Buildout Registry · New York

Lake Mariner

TeraWulf · Barker, Niagara County, New York

Verified by Neocloud GroupChecked against 5 sources, including primary filings and releases
Open on the map →
750 MW
Gross planned
102 MW
Energized today
2025
First power
NYISO
Grid region · location approximate
In brief

What makes it notable.

  1. A bitcoin site converted to AI data halls, with 200 MW gross and 102 MW critical IT online today and 750 MW gross planned, targeting full buildout in the second half of 2026.
  2. Power comes through the inherited NYSEG Kintigh 345 kV interconnect (former Somerset coal) in NYISO Zone A, plus a roughly 90 MW NYPA Niagara hydropower allocation executed in 2022.
  3. One deployed cluster runs more than 9,000 AMD Instinct MI300X GPUs with Arista Ethernet, and NYISO has approved an added 250 MW toward 500 MW.
Deal anatomy

Six layers, and who holds each.

Every Registry site is read the same way: a campus is real when each layer has a name. Members see the anchor tenant and the capital.

Power
NYSEG Kintigh 345 kV substation (former Somerset coal interconnect), NYPA Niagara hydropower allocation (~90 MW)
Site and build
TeraWulf (miner → HPC)
Compute
AMD Instinct MI300X (Core42) + undisclosed (Fluidstack CB-5)
Cloud operator
Fluidstack / Core42
Anchor tenant
Members
Capital
Members
Free for professionals in AI infrastructure.
Timeline

From here to full build.

  1. 2025First power
  2. 2026-H2Full buildout
  3. Oct 2026Today
The detail

Each party's role.

Power

NYSEG Kintigh 345 kV substation (former Somerset coal interconnect). Inherited transmission interconnection, NYISO Zone A

Power

NYPA Niagara hydropower allocation (~90 MW). Low-carbon supply, 10-yr allocation executed Feb 2022

Site and build

TeraWulf (miner → HPC). Bitcoin site converted to AI data halls reported

Compute

AMD Instinct MI300X (Core42) + undisclosed (Fluidstack CB-5). Core42: 9,000+ MI300X, Arista Ethernet; CB-5 accelerator undisclosed reported

Cloud operator

Fluidstack / Core42. Neocloud operators (tenants) reported

Related sites

Nearby in the buildout.

Under constructionJustified Data CampusTeraWulf · KY · 401 MW
Sources

The record behind this page.

Neocloud Group

Who keeps this record.

Neocloud Group is the advisory firm AI companies bring in to secure data center capacity. The Registry is part of that work.

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