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Most announced data centers will never get built. The ones that do are running on gas generators. And the US grid has no answer for what's coming.

Hannan Happi, CEO & Co-Founder of Exowatt, joins Sourcery for a rare facility tour of their 40,000 sq ft Miami HQ — walking us through the tech, the team, and why the AI power crisis is far worse than the headlines suggest.

Exowatt has raised $140M from a16z, Felicis, Sam Altman, Leonardo DiCaprio, Starwood Capital, Thrive Capital, and more, all betting on a deceptively simple idea: concentrate sunlight with Fresnel lenses, store the heat in rocks at 1,000°C, and dispatch electricity on demand. 24 hours a day, no grid required.

Their P3 system is built from sand, dirt, and steel. Like a large magnified glass and a rock. No lithium. No cobalt. No China. Target cost: 1 cent per kilowatt hour.

Timestamps

(00:00) What is Exowatt? The solar backbone for AI data centers

(01:30) Why the US grid simply cannot handle what's coming

(02:00) Tour begins: Welcome to Lighthouse Miami — 40,000 sq ft facility

(02:45) The P3 explained: three elements, one shipping container

(04:00) The founding story: Atomic venture studio and the modular hypothesis

(05:30) Why solar thermal hasn't followed solar PV's 99.6% cost decline — until now

(07:00) North star: 1 cent per kilowatt hour and where they are today

(11:00) Inside the world's largest solar simulator — the sun, indoors

(13:00) The Fresnel lens up close: a giant magnifying glass for the sun

(15:00) "It's rock science" — the 5-year-old explanation of how it works

(17:30) Domestic raw materials (sand, dirt, steel) as the real competitive moat

(24:30) The phantom data center problem: most announcements won't get built

(26:00) From 100 MW to 10 GW: how data center scale exploded in 3 years

(30:00) Funding breakdown: $140M, a16z, Felicis, Sam Altman, Leonardo DiCaprio

(37:00) Lessons from Tesla: remove parts, iterate fast, build better

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