Subcritical Systems | Safer Nuclear Energy to Power America

Fast & Safe Nuclear Energy to Power America

Revolutionizing Accelerator Technology

About Us

Subcritical Systems is a company in Austin, Texas bringing the energy amplifier concept to the US to safely generate electrical power. Energy Amplifier consists of a particle accelerator to sustain fission of nuclear fuel in a subcritical core generating power. There is no potential for criticality in both normal operation and off-normal conditions.

Founding team of entrepreneurs that built companies with cutting edge technologies and scientists that have co-invented the concept. Financially backed and hiring now.

Technology

Advantages of Energy Amplifier Technology

Advantages of the Energy Amplifier/Accelerator Driven System (ADS)

Inherent Safety

since the particle accelerator provides a simple on-off switch for the fission process. The core can never reach criticality

since the particle accelerator provides a simple on-off switch for the fission process. The core can not reach criticality

Cheap Power

competes directly with natural gas on price

comparable to the price of gas as cheap to operate promoting clean energy

Uses Existing Technology

no new science required, power online by 2028

Uses Existing Technology

Team

We move faster, think outside of the box, hold ourselves to the highest standards of excellence and scientific rigor and cross hybridize from different fields.

If you have resilience, ambition, passion and work ethic and are interested in what we do, please get in touch as we are actively growing our team.

Careers

Join the Subcritical team and help pioneer fast, safe nuclear energy.

View open roles and apply today.

Join the Subcritical Systems team and help pioneer clean nuclear energy with accelerator-driven systems. View open roles and apply today.

See Open Positions

Whats New

Subcritical Systems Secures Clear Regulatory Path with U.S. Nuclear Regulatory Commission

Subcritical Systems achieved a major milestone by confirming with the NRC that its Energy Amplifier technology can be licensed under existing regulatory frameworks (10 CFR Part 70 and Part 30), eliminating the need for new rulemaking and significantly accelerating the path to commercialization. This regulatory clarity de-risks the timeline to market and validates the company's approach with federal authorities. The announcement follows productive engagement with NRC staff and legal guidance from former NRC Commissioner Jeff Merrifield, positioning Subcritical Systems to lead U.S. deployment of accelerator-driven subcritical nuclear energy systems while similar projects advance in Europe and China.

Jan 30, 2026

Speedrunning the NRC

For 30 years of VC, we have avoided any nuclear energy startup that had to pass the slow and expensive gauntlet of NRC Part 50 regulation. We finally found a bypass with subcritical fission, and the NRC agrees. This means they could bring their inherently-safe reactor online in two years, well before more traditional designs.

• NRC news today: https://globenewswire.com/news-release/2026/01/12/3217171/0/en/Subcritical-Systems-Announces-Planned-Licensing-Pathway-for-Accelerator-Driven-Subcritical-Energy-Amplifier-Under-Existing-NRC-Regulations.html • Company: https://Subcritical.com now hiring in Austin, TX

@FutureJurvetson

Jan 30, 2026