Energy & Utilities
Advanced Nuclear for AI Data Centers
Small modular reactors and other advanced nuclear designs are moving from theoretical promise to commercial reality as hyperscalers seek clean, reliable, 24/7 baseload power for AI data centers, with Meta, Microsoft, Amazon and Google collectively committing over $50 billion to nuclear power projects as of early 2026. Amazon-backed X-energy closed an upsized $700 million Series C-1 round (bringing its 13-month total to roughly $1.4 billion) targeting more than 5 gigawatts of SMR deployment by 2039; TerraPower closed a $650 million fundraise backed by NVIDIA and signed an up-to-8-reactor Natrium deal with Meta providing up to 2.1 GW by 2035; and Aalo Atomics, developing a modular reactor purpose-built for AI data centers, achieved 'first criticality' on its Critical Test Reactor on July 4, 2026 after a $100 million Series B.
Sources
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Evidence
2 sources · 55% avg. source confidence
- The AI Consulting Network — Small modular reactors move from promise to commercial reality in 202654% source confidence
- Business Wire / CryptoBriefing — Aalo Atomics' Critical Test Reactor achieves first criticality56% source confidence
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Jan 2026 · Big Tech commits $50B+ to nuclear power for AI data centers
Meta, Microsoft, Amazon and Google collectively committed more than $50 billion to nuclear power projects for AI data center operations as of early 2026, spanning both existing nuclear fleets and next-generation advanced reactor designs.