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Doug Bernauer

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@DougBernauer

Radiant CEO, mass produced portable nuclear reactors starting in 2026!
Formerly 12 years SpaceX - Electrical and Systems, Grasshopper Rocket, Boring Co., Mars
El Segundo, CA radiantnuclear.com Joined March 2013
120 Following 11K Followers 85 Posts

Latest posts 5

Doug Bernauer Verified account @DougBernauer
It's about to get hot!!
Radiant Verified account @RadiantNuclear Oct 29
Radiant has secured U.S. Department of Energy (@ENERGY) approval of its Documented Safety Analysis for Kaleidos, making it the only microreactor to be reviewed and approved by the DOE for full power operations.

The approval is not just for criticality, but for Radiant’s full power, full temperature testing at the Idaho National Laboratory. Radiant will test the complete reactor system using the same design it will manufacture at scale.

Next up in the path to commercialization: Readiness Review.

Read more here 🔗 radiantnuclear.com/news/radiant-s…
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Doug Bernauer Verified account @DougBernauer
Honored to be listed, thanks a16z! I know many of these companies and founders, this is really becoming a robust network of us workaholic nerds who love the future!
a16z @a16z Oct 29
The 2026 American Dynamism 50 is here: our annual list of 50 companies, from within the a16z portfolio and beyond, building for America's future.

This year's theme is Production is Deterrence. "America's ability to prevent conflict depends on what it can build, how fast it can deliver, and how long it can keep going."

A new generation of defense companies is moving from prototypes to full-scale production, and the industrial base has to keep pace. This year's list is organized around three pillars:

1. Systems: the drones, ships, missiles, aircraft, and spacecraft that deter conflict.

2. Factories: the plants, tools, and software that build them.

3. Inputs: the materials and power they're made of and run on.

Get all three right, and the impact reaches well beyond defense, to skilled jobs, revitalized communities, and the supply chains behind energy, housing, and everyday goods.

Meet all 50: a16z.news/p/ad-50-2026-p…
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Doug Bernauer Verified account @DougBernauer
Thank you for your efforts Adam! I was immediately impressed by your commitment to achieving great things no matter how challenging. Excited to see what you're doing next!
adamblake Verified account @adamblake Sep 1
I’ve never posted on X.

Last year I was at Department of Energy with an unusual view into what’s happening across AI, energy, and infrastructure. The old systems can’t handle what’s coming.

There’s just an insane amount we need to build in the physical world, and the opportunity and urgency are greater than ever.

Every able person should be contributing to the effort, and I’ve gotten back into the arena to do my part. More to come soon.
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