2026-07-28 — A fifth megasite enters the map: Ohio’s 10GW Portsmouth campus

• OpenAI/SB Energy’s planned 10GW Piketon, OH campus (the former Portsmouth uranium site) got a financing-backstop story — Nvidia weighing ~$250B toward the lease/construction, pushing total project cost toward $500B; full detail and sourcing in stargate-buildout. If it holds, this is the single largest site figure in this thread’s tracker — bigger than any of the four hyperscalers’ named individual sites. ⟨daily 2026-07-28⟩

2026-07-27 — The site map, four actors traced ⟨crawl 2026-07-27⟩

• Google: 15+ US states + India — MO $15B · MI 1GW “Cannoli” · TX Panhandle 1GW+ · NextEra ≥3 GW-scale campuses · India $15B Visakhapatnam (one outlet: 5GW, thin). A land-grab, not megasites.
• Microsoft: two named ~2GW builds — the WI+GA fiber-linked “AI superfactory” + Pecos TX (Chevron co-located). No company-wide GW total exists.
• Amazon: Rainier live (New Carlisle IN, 500K Trainium2, $26B) · MS $25B · PA $20B · NC $10B (07-20).
• Meta: Hyperion 5GW/$50B+ — 80% sold to Blue Owl · El Paso $10B/1GW under live local pushback · Prometheus GW-figure unclear · the 3-month tent builds are real.

2026-07-24 — Opened

• Thread opened (ben-steer) — meta-thread — groups the child threads below. ⟨steer 2026-07-24⟩

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