{"data":[{"facilityId":"epoch-microsoft-project-osmium","slug":"microsoft-project-osmium-cumming-ia","name":"Microsoft Project Osmium","state":"IA","county":"Warren County","orgIds":["microsoft","openai","midamerican"],"iso":"MISO","utilities":["midamerican"],"id":"epoch-microsoft-project-osmium:power.it_mw:epoch-ai-data-centers:2025-03-01","date":"2025-03-01","kind":"value","field":"power.it_mw","before":95,"after":190,"sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"Current IT capacity: 95 MW → 190 MW","url":"https://datacenters.prithvidixit.com/facilities/microsoft-project-osmium-cumming-ia","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-microsoft-project-osmium","slug":"microsoft-project-osmium-cumming-ia","name":"Microsoft Project Osmium","state":"IA","county":"Warren County","orgIds":["microsoft","openai","midamerican"],"iso":"MISO","utilities":["midamerican"],"id":"epoch-microsoft-project-osmium:power.facility_mw:epoch-ai-data-centers:2025-03-01","date":"2025-03-01","kind":"value","field":"power.facility_mw","before":114,"after":228,"sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"Current facility power: 114 MW → 228 MW","url":"https://datacenters.prithvidixit.com/facilities/microsoft-project-osmium-cumming-ia","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-microsoft-project-osmium","slug":"microsoft-project-osmium-cumming-ia","name":"Microsoft Project Osmium","state":"IA","county":"Warren County","orgIds":["microsoft","openai","midamerican"],"iso":"MISO","utilities":["midamerican"],"id":"epoch-microsoft-project-osmium:size.buildings_operational:epoch-ai-data-centers:2025-03-01","date":"2025-03-01","kind":"value","field":"size.buildings_operational","before":2,"after":4,"sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"Buildings operational: 2 → 4","url":"https://datacenters.prithvidixit.com/facilities/microsoft-project-osmium-cumming-ia","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-microsoft-project-osmium","slug":"microsoft-project-osmium-cumming-ia","name":"Microsoft Project Osmium","state":"IA","county":"Warren County","orgIds":["microsoft","openai","midamerican"],"iso":"MISO","utilities":["midamerican"],"id":"epoch-microsoft-project-osmium:phase_operational:2025-03-01:epoch-ai-data-centers","date":"2025-03-01","kind":"milestone","milestone":"phase_operational","description":"Building 3-4 operational, no visible construction.","sourceId":"epoch-ai-data-centers","evidenceLevel":"estimated","text":"New capacity online: Building 3-4 operational, no visible construction.","url":"https://datacenters.prithvidixit.com/facilities/microsoft-project-osmium-cumming-ia","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."}}