Advertiser Disclosure: We may earn commissions from partner links at no cost to you. This never affects our editorial content or recommendations.

Home › AI Stocks › Nuclear Power for AI

Nuclear Energy Stocks: Powering the AI Data Center Boom

A single AI data center can consume as much power as a small city. Solar and wind can't provide 24/7 baseload power. Nuclear can. Microsoft signed a deal to restart Three Mile Island. Google signed with Kairos Power. Amazon backed X-Energy. The nuclear renaissance is being driven by AI — and it's just starting.

Updated March 2026 AI Decoded
⚠️ Not financial advice. The following is informational content only. We may hold positions in securities mentioned. Always do your own research. Full disclosure →
OKLO
Oklo Deep Dive →
Next-gen microreactor company. Aurora powerhouse design targeting AI data center customers. Backed by Sam Altman.
Early-stage, high-risk, high-reward. The pure-play microreactor bet on AI power demand.
SMR
NuScale Power Deep Dive →
Small modular reactor (SMR) technology. US-developed, NRC-approved design. Targeting industrial + data center customers.
The first NRC-approved SMR design in the US. Execution risk is real but first-mover position is valuable.
CEG
Constellation Energy Deep Dive →
Largest nuclear operator in the US. Restarted Three Mile Island for Microsoft's data centers.
The safest nuclear play — operating plants, real revenue, Microsoft contract in place.
VST
Vistra Deep Dive →
Power generation company with significant nuclear fleet. Data center power contracts growing.
Diversified power with nuclear upside. Less pure-play but more stable than OKLO/SMR.

Frequently Asked Questions

Why are AI companies investing in nuclear power?
AI data centers require massive amounts of reliable, 24/7 electricity. Nuclear power is the only carbon-free energy source that can provide baseload power at scale. Microsoft, Google, and Amazon have all signed nuclear power purchase agreements to meet their data center energy needs.
What is a small modular reactor (SMR)?
A small modular reactor is a nuclear reactor smaller than traditional large-scale plants, designed to be factory-built and deployed modularly. They're seen as a key solution for providing dedicated power to AI data centers and industrial facilities.