{"data":[{"facilityId":"epoch-anthropic-lake-mariner","slug":"anthropic-lake-mariner-barker-ny","name":"Anthropic Lake Mariner","state":"NY","county":"Niagara County","orgIds":["ai-xpv","anthropic","google","blackstone","niagara-mohawk-power-corp"],"iso":"NYISO","utilities":["niagara-mohawk-power-corp"],"id":"epoch-anthropic-lake-mariner:size.buildings_operational:epoch-ai-data-centers:2026-05-31","date":"2026-05-31","kind":"value","field":"size.buildings_operational","before":0,"after":1,"sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"Buildings operational: 0 → 1","url":"https://datacenters.prithvidixit.com/facilities/anthropic-lake-mariner-barker-ny","source":{"id":"epoch-ai-data-centers","title":"AI data centers (Frontier Data Centers Hub)","publisher":"Epoch AI","url":"https://epoch.ai/data/ai-data-centers","license":"CC BY 4.0","retrievedAt":"2026-10-12"}},{"facilityId":"epoch-anthropic-lake-mariner","slug":"anthropic-lake-mariner-barker-ny","name":"Anthropic Lake Mariner","state":"NY","county":"Niagara County","orgIds":["ai-xpv","anthropic","google","blackstone","niagara-mohawk-power-corp"],"iso":"NYISO","utilities":["niagara-mohawk-power-corp"],"id":"epoch-anthropic-lake-mariner:status:epoch-ai-data-centers:2026-05-31","date":"2026-05-31","kind":"value","field":"status","before":"under_construction","after":"expanding","sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"Status: Under construction → Operating + expanding","url":"https://datacenters.prithvidixit.com/facilities/anthropic-lake-mariner-barker-ny","source":{"id":"epoch-ai-data-centers","title":"AI data centers (Frontier Data Centers Hub)","publisher":"Epoch AI","url":"https://epoch.ai/data/ai-data-centers","license":"CC BY 4.0","retrievedAt":"2026-10-12"}},{"facilityId":"epoch-anthropic-lake-mariner","slug":"anthropic-lake-mariner-barker-ny","name":"Anthropic Lake Mariner","state":"NY","county":"Niagara County","orgIds":["ai-xpv","anthropic","google","blackstone","niagara-mohawk-power-corp"],"iso":"NYISO","utilities":["niagara-mohawk-power-corp"],"id":"epoch-anthropic-lake-mariner:phase_operational:2026-05-31:epoch-ai-data-centers","date":"2026-05-31","kind":"milestone","milestone":"phase_operational","description":"Building 1 is operational. On February 26, Terawulf [stated](https://investors.terawulf.com/news-events/press-releases/detail/132/terawulf-reports-fourth-quarter-and-full-year-2025-results) that CB3 was expected to be energized by mid-May 2026. A drone video commissioned from [RAAD](https://raad.com/) shows several cooling units operating on May 8. It's therefore likely that the building was fully operational around this date.","sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"New capacity online: Building 1 is operational. On February 26, Terawulf stated that CB3 was expected to be energized by mid-May 2026. A drone video commissioned from RAAD shows several cooling units operating on May 8. It's therefore lik…","url":"https://datacenters.prithvidixit.com/facilities/anthropic-lake-mariner-barker-ny","source":{"id":"epoch-ai-data-centers","title":"AI data centers (Frontier Data Centers Hub)","publisher":"Epoch AI","url":"https://epoch.ai/data/ai-data-centers","license":"CC BY 4.0","retrievedAt":"2026-10-12"}},{"facilityId":"epoch-anthropic-lake-mariner","slug":"anthropic-lake-mariner-barker-ny","name":"Anthropic Lake Mariner","state":"NY","county":"Niagara County","orgIds":["ai-xpv","anthropic","google","blackstone","niagara-mohawk-power-corp"],"iso":"NYISO","utilities":["niagara-mohawk-power-corp"],"id":"epoch-anthropic-lake-mariner:construction_start:2025-06-11:epoch-ai-data-centers","date":"2025-06-11","kind":"milestone","milestone":"construction_start","description":"Land clearing begins for Building 1 (AKA CB3).","sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"Construction started: Land clearing begins for Building 1 (AKA CB3).","url":"https://datacenters.prithvidixit.com/facilities/anthropic-lake-mariner-barker-ny","source":{"id":"epoch-ai-data-centers","title":"AI data centers (Frontier Data Centers Hub)","publisher":"Epoch AI","url":"https://epoch.ai/data/ai-data-centers","license":"CC BY 4.0","retrievedAt":"2026-10-12"}}],"meta":{"total":4,"limit":100,"offset":0,"dataAsOf":"2026-10-12"},"attribution":{"license":"Open Database License (ODbL) 1.0 for the compiled database; individual sources keep their own terms (see sources[].license).","credit":["© OpenStreetMap contributors (ODbL 1.0) — https://www.openstreetmap.org/copyright","Epoch AI, 'AI data centers'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/data/ai-data-centers' (CC BY 4.0)","Datacenter Source — https://datacenters.prithvidixit.com"],"terms":"/api#license","note":"Every figure links to its source. MW totals are floors (most facilities don't disclose power). Evidence levels: confirmed / announced / estimated — see /sources#evidence-levels."}}