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  "title": "Facility phases and geographical evidence",
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  "description": "Keeps physical sites, organizational names and development stages distinct before counting capacity.",
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  "revisionDate": "2026-10-07",
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  "topic": "Global AI infrastructure",
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  "version": "1.3.0",
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      "title": "Facility phases and geographical evidence",
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      "title": "How should a partly operating campus with an announced expansion be recorded?",
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    {
      "title": "Explore in Atlas",
      "url": "https://semiaifoundry.com/ai-atlas/#capacity-phase-geography"
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    {
      "title": "Five new Stargate sites",
      "url": "https://openai.com/index/five-new-stargate-sites/"
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    {
      "title": "Google AI Hub construction milestone in India",
      "url": "https://blog.google/intl/en-in/google-ai-hub-scaling-indias-ai-infrastructure-and-community-impact/"
    },
    {
      "title": "The EuroHPC Joint Undertaking launches the AI Gigafactories Call",
      "url": "https://www.eurohpc-ju.europa.eu/eurohpc-joint-undertaking-launches-ai-gigafactories-call-2026-07-30_en"
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      "title": "Commissioning a usable AI cluster",
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      "title": "Production ramps, inventory and allocation",
      "url": "https://semiaifoundry.com/learn/atlas/production-ramp-allocation/"
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  "content": "Global AI infrastructure · Atlas v1.3.0\n\n# Facility phases and geographical evidence\n\nKeeps physical sites, organizational names and development stages distinct before counting capacity.\n\n[Explore in Atlas](https://semiaifoundry.com/ai-atlas/#capacity-phase-geography)Facility phases to region and world; geography schematic\n\nLearning objectiveBuild a capacity record that preserves geography, identity, phase and evidence status.\n\n## The mechanism\n\nA cloud region, campus, building, availability zone and project phase are different entities. One campus can operate an early phase while constructing another and announcing a third. Different organizations may describe the same physical capacity as owner, operator, cloud provider or customer, creating double-counting risk. The Stargate and India hub announcements illustrate why dated status belongs to a specific phase and amount. Source date, checked date and power boundary distinguish the reported snapshot from later events; announced megawatts do not automatically count as operating capacity. Counts of factories or access centers require their own definitions and cannot be treated as equal-sized facilities.\n\n1.  Resolve the physical site and identify any separately dated construction or operating phases.\n2.  Identify each organization’s role without counting the same hardware again under another name.\n3.  Attach capacity only to the phase and status directly supported by the source.\n4.  Preserve unspecified IT/facility boundaries and distinguish checked date from the reported event date.\n5.  Aggregate only compatible non-overlapping records and display the census’s coverage limits.\n\n## Science and assumptions\n\n### Status-scoped aggregation\n\n$$\nC_s(t)=\\sum_p C_p(t)\\,\\mathbf1\\{\\mathrm{status}_p(t)=s\\}\n$$\n\nStatus-scoped capacity sums each nonoverlapping phase’s compatible capacity only when its status matches the selected category.\n\nThe subscript s replaces the repeated word status to distinguish a selected category from the phase’s status function. Unknown capacity is not silently treated as zero.\n\nSymbols and units\n\nC\\_s(t)\n\nCompatible capacity with selected status s at time t\n\none declared capacity unit\n\nC\\_p(t)\n\nCapacity of nonoverlapping phase p at time t\n\nsame capacity unit\n\nstatus\\_p(t)\n\nSource-reported categorical status of phase p\n\ncategory\n\ns\n\nSelected status category\n\ncategory\n\n1{…}\n\nIndicator: one when the stated status matches, zero otherwise\n\n0 or 1\n\np\n\nNonoverlapping phase index\n\nindex\n\nt\n\nSnapshot time\n\ndate or consistent time coordinate\n\nCp is compatible capacity for non-overlapping phase p at time t; the indicator selects one status.\n\nAssumptions Only sum identical units and power boundaries; unknown amounts remain excluded or explicitly unresolved.\n\n## Engineering example\n\nSynthetic campus has 20 MW operating and a separate 80 MW planned expansion. Its operating total remains 20 MW; 100 MW describes combined eventual scope only if both figures use the same boundary.\n\n## Distinctions and tradeoffs\n\nA planned gigawatt campus is not a gigawatt of operating compute, and an access antenna is not an equivalent data-center building.\n\nA smaller verified map is more interpretable than a large collection of incompatible announcements, though it must state its incomplete coverage.\n\nAvailable AI service depends on the operating phase and access arrangement, not on the largest planned campus headline.\n\n## Specifications and interfaces\n\nStatus vocabulary\n\nOperating, commissioning, construction, planned and retired\n\nApply status to a dated phase rather than an entire ambiguous name.\n\nEntity identity\n\nPhysical site versus service or organization\n\nShared ownership and customer claims can refer to one installation.\n\n### Interfaces\n\nOperator and public records Input\n\nDates, identities, capacities and explicit status statements\n\nCurated phase record Output\n\nComparable evidence with unknown boundaries retained\n\n## Check your understanding\n\n### How should a partly operating campus with an announced expansion be recorded?\n\n1.  As two unrelated copies of the same total\n2.  As separate phases with their own status and capacity\n3.  As fully operating at its final planned size\n\nAnswer and reasoning\n\nAs separate phases with their own status and capacity\n\nPhase records preserve real progress while preventing planned and operating quantities from being merged.\n\n## Evidence and scope\n\nThis lesson supplies evidence methods and selected public cases, not a complete world census. The atlas’s facility records preserve the selected geographical examples.\n\nNo current calculator directly models this lesson’s main mechanism. Use the library for related bounds while retaining their stated omissions.\n\n## Sources\n\n-   [Five new Stargate sites](https://openai.com/index/five-new-stargate-sites/)\n-   [Google AI Hub construction milestone in India](https://blog.google/intl/en-in/google-ai-hub-scaling-indias-ai-infrastructure-and-community-impact/)\n-   [The EuroHPC Joint Undertaking launches the AI Gigafactories Call](https://www.eurohpc-ju.europa.eu/eurohpc-joint-undertaking-launches-ai-gigafactories-call-2026-07-30_en)\n\n[Published lesson data](https://semiaifoundry.com/ai-atlas/lesson-data/capacity-phase-geography-bdcaf4fe3d7d4285.json) · [Atlas releases and licensing](https://semiaifoundry.com/ai-atlas/licenses.html)\n\n## Continue exploring\n\n### Foundations\n\n-   [Commissioning a usable AI cluster](https://semiaifoundry.com/learn/atlas/cluster-commissioning-gates/)\n\n### Related lessons\n\n-   [Production ramps, inventory and allocation](https://semiaifoundry.com/learn/atlas/production-ramp-allocation/)\n-   [Siting, regional infrastructure and access to compute](https://semiaifoundry.com/learn/atlas/regional-siting-access/)"
}