Anthropic Lake Mariner
Chip types: TPU v7. Epoch AI estimates ~42 MW.
Key facts
- Operator
- AI XPV Platform
- Owner
- AI XPV Platform
- Tenant
- Anthropic
- Size
- 42 MW
- Location
- Barker (Somerset), New York
- Stage today
Source
read 2026-08-14
What to do next
Next step: Already operating — the leverage now is enforcement: noise and water conditions, tax revenue tracking, and any expansion filing, which reopens the record.
What has happened so far (7 events)
- 2024-12-23financing
TeraWulf signs binding lease agreements with Core42 for 72.5 MW of HPC hosting capacity at Lake Mariner with option to expand by 135 MW; expected to generate $1 billion over initial 10-year terms, commencing at various dates in 2025. · source - 2025-08-14financing
TeraWulf announces binding terms with Fluidstack for 200+ MW of critical IT load at Lake Mariner, with Google credit enhancement; approximately $3.7 billion in contracted revenue over initial 10-year term, phase one (~40 MW) expected H1 2026. · source - 2025-11-10report
TeraWulf Q3 2025 results detail Lake Mariner lease portfolio: La Lupa (Core42) at 72.5 MW with $1.1 billion over ten years, and Akela (Fluidstack/Google) at 450 MW with $6.7 billion over ten years. · source - 2026-02-26report
TeraWulf Q4 2025 results report Lake Mariner contracted at 440 MW critical IT (Core42 60 MW, Fluidstack/Google 380 MW); CB-2 (42 MW) listed with CB2A operational and CB2B expected in March 2026. · source - 2026-04-14operational
TeraWulf Q1 2026 preliminary results confirm CB-2 fully delivered as of March 31, 2026, with all Core42 capacity across WULF Den, CB-1, and CB-2 generating revenue; HPC hosting exceeded 50% of Q1 revenue. · source - 2026-07-06announcement
TeraWulf announces 20-year lease with Anthropic for 401 MW at the Justified Data campus in Hawesville, Kentucky (not Lake Mariner), expected to generate approximately $19 billion in contracted revenue; initial capacity in second half of 2027, full ramp by early 2028. · source - 2026-08-05operational
TeraWulf Q2 2026 results report 102 MW of revenue-generating critical IT capacity online at Lake Mariner as of early July 2026, with CB-3 completed and CB-4 entering commissioning; CB-5 targeted for early 2027. · source
Find the paper trail
Find the paper trail (0 filed · 11 places to look)
State environmental permits
Backup generators, water withdrawal and stormwater are permitted by the state, usually earlier and in more detail than anything filed locally.
- New York State DEC — Division of Air ResourcesThe program page: which permits this state requires, and the office that issues them.
- Environmental Notice Bulletin (weekly filings)Searchable public filings — search the operator, the shell LLC on the deed, and the address.
County & town filings
The rezoning application, site plan, traffic and noise studies, staff report and every revision.
- Search Barker (Somerset) planning filingssearchPlanning departments post application files under many different names. Find the department, then ask the clerk for the application number — that number unlocks everything else.
- Search Barker (Somerset) property records / GISsearchThe parcel record names the buying LLC and the sale date, which is what ties an anonymous filing to an operator.
Utility & grid records
The electricity request is filed with the grid operator and the utility long before the town hears about it — and states the real load.
- NYISO (New York) — interconnection queueRequested megawatts, queue position and target in-service date. The MW here is the real number; the one at the town meeting is often phase one.
- New York Public Service Commission — docket searchSpecial contracts, large-load tariffs and rate cases are docketed here. Testimony and exhibits are public, and are usually more candid than the press release.
- FERC eLibraryFederal filings: transmission agreements, interconnection service agreements, and co-location disputes.
- Search the serving utility for a will-serve lettersearchThe will-serve or load-service letter is the utility's own written commitment. Ask the utility and the PUC for it by name — it is frequently the first document to exist.
Federal databases
Works anywhere, and covers the operator's record at its other sites.
- EPA ECHO facility searchEvery federally-reported air, water and waste permit at a facility, plus its inspection and violation history. Search by address or draw a radius around the site. This project's locality centres on 43.330, -78.550 — search that point with a 5-mile radius.
- EPA EnvirofactsThe same underlying records, queryable by county — useful for 'what else is permitted near this site' rather than one facility.
- EPA Facility Registry ServiceResolves the shell LLC on a permit to the facility it belongs to. Worth a look when the filing name means nothing locally.
These are places to look, not evidence that anything has been filed. Links were checked on 2026-08-21; search links are queries, not records. What to ask for.
Around here
- New York briefing — rates, grid carbon, PUC contacts.
Other tracked projects in New York
- Project Double Reed (Stream US Data Centers at STAMP) — Alabama (Genesee County), 18 mi Awaiting decision
- TeraWulf Cayuga data center (former Cayuga Power Plant) — Lansing (Tompkins County), 115 mi Awaiting decision
Cite this page: GridWatch AI, “Anthropic Lake Mariner”, aigridwatch.com/projects/anthropic-lake-mariner, retrieved 2026-10-11.
As of August 2026 (2m ago) · changes weekly — re-check before citing
A working set of identified proposals a community can track, not a census — most of the country's activity is not in here yet. Pennsylvania is the exception: its rows are synced from PA DEP's own data-center permit tracker, so the state's coverage is close to complete and carries the permit trail with it. **Each row carries its own provenance.** Rows showing a verification date link to reporting or the governing body's own record and were read on that date; rows marked *unverified* have no source on record — a lead to check, not a fact to cite. **Stage is derived, not asserted.** *Hearing scheduled*, *Awaiting decision*, *Approved* and *Withdrawn* are computed from each row's milestone dates on every rebuild, so a hearing date that has passed stops reading 'scheduled'. Hearings get moved and projects re-file under new names — treat a scheduled date as the earliest to act by, and confirm with the clerk before relying on it. Leads are mined into data/project_candidates.json and promoted here only after a human reads a primary source.
Part of the data center project tracker — open data, CC BY 4.0 (JSON · CSV).