Radiant

Investor appreciation post! Thanks to everyone who believes in the dream and made our Series C possible. Next stop, a fueled reactor test at Idaho National Laboratory! DCVC, Andreessen Horowitz, Union Square Ventures, Felicis, Washington Harbour Partners LP, Chevron Technology Ventures, Founders Fund, Decisive Point, McKinley Alaska Growth Capital, Boost VC, Also Capital, Vanderbilt University, Collaborative Fund, Crosscut Ventures, Alumni Ventures, Chroma Ventures, Alternative Capital Investments

We’re super excited to announce the close of our $100M Series C, led by DCVC! This investment comes on the heels of our passive cooldown demonstration, a critical milestone test of a full-scale, non-fueled reactor, and brings the company’s total venture funding to $160 million. The funds will primarily be used to complete our Kaleidos Development Unit (KDU), which we will fuel and operate at Idaho National Laboratory's Demonstration of Microreactor Experiments facility. The KDU is the same reactor design that will be mass manufactured and sold to customers. Radiant is excited to welcome new investors Felicis, Washington Harbour Partners LP, and Chevron Technology Ventures, and appreciates the continued support of Andreessen Horowitz, Union Square Ventures, Founders Fund, Decisive Point, McKinley Alaska Growth Capital, Boost VC, and Also Capital. We've got the team. We've got the hardware. And now we've got the money...it's time to build a reactor!! If you want to learn more, check out Alan Neuhauser's writeup in Axios: https://lnkd.in/gW8k-E57

“When we talk about advanced reactors these days, we’re not talking about things on paper.” At Radiant, we’re building nuclear microreactors out in the real world, step by step. One critical feature of our Kaleidos microreactor is its passive cooling capability – meaning the unit can cool itself down, without power, in the event of an accident. And today, we’re excited to share this deeper look our successful passive cooldown demonstration, a major milestone for Radiant in our mission to provide abundant, portable nuclear power around the world. The future isn’t just on paper anymore.

To enable a future where we can provide clean, abundant nuclear power where people need it most, safety and reliability have to come first. Tomorrow we’re sharing a deeper look at our recent passive cooldown demonstration, a major technical milestone that keeps us on track to deliver factory-manufactured microreactors by 2028. At Radiant, we’re building real hardware, we’re hitting our milestones, and we’re moving forward, fast. And we can’t wait to share what comes next. Stay tuned.

Radiant was honored to host HAC-D Chairman Ken Calvert at our headquarters in El Segundo earlier this week. We are grateful to the Chairman for taking the time to learn about how nuclear microreactors like Kaleidos will strengthen US national security. We look forward to advancing our collaboration?with DOD customers, and working to ensure Kaleidos is positioned to provide energy independence?and resilience to the US military. Decisive Point?Nate Walton

Still riding the high of our passive cooldown demonstration! Validating this crucial safety feature of our Kaleidos microreactor was no easy feat. Click the link for some additional thoughts from our team on this milestone, and our focus on testing at the National Reactor Innovation Center | NRIC DOME facility in 2026. https://lnkd.in/g7AU5Hr7

Just 10 days ago, the Radiant team successfully completed our passive cooldown demonstration with a full-scale, non-nuclear prototype of our Kaleidos reactor! When raising our Series B, we set the goal of completing this test by Q3 2024 and our team crushed it! - Electric heaters applied up to 130kW to heat over 10 tons of steel and precision machined graphite. - Over 300 channels of instrumentation collected temperature, pressure, and flow data. - 12 valves opened upon being commanded to shutdown to allow air to flow and cool the pressure vessel via natural convection. - The test was performed at over 420 °C and the vessel took about 30 hours to return to ambient temperature. - Initial comparison against our thermal models shows that cooling is sufficient with the current design! Thank you to Brian Smith and Eric Wesley for your opening remarks, to the National Reactor Innovation Center | NRIC team for their continued support as we work towards a fueled test in the Idaho National Laboratory DOME facility, and to everyone who was able to join us in witnessing this milestone! Further planned testing will fully investigate fault tolerance and combination stress cases to make a high reliability reactor product.

Catch co-founder and CEO Doug Bernauer on the My Climate Journey (MCJ) podcast. Doug dives into his vision for Radiant and the role the company will play in driving the US nuclear industry forward by mass producing reactors.

Radiant is proud to announce our partnership with T3 Alaska at the University of Alaska Fairbanks! Our partnership supports essential programming, including STEM problem-based learning, post-secondary and career preparation, and community engagement strategies for Alaska’s students. In July, Radiant’s engineers mentored high school students on nuclear energy and nuclear microreactors during the Energy and Climate Advanced Summer Session. Our take: This curious and passionate cohort blew us away! Radiant engineers Daniel Berlin and River Bennett fielded great questions, ranging from how fission works to the heat transfer properties of Kaleidos’s helium coolant. Daniel and River also provided students with hands-on experience using radiation detection instrumentation. We’re excited to continue this partnership with the support of the University of Alaska Fairbanks, the College of Engineering and Mines, and the Alaska Center for Energy and Power (ACEP), as we work together to build the next generation of nuclear engineers and advocates for nuclear energy! #STEM #Engineering #Mentorship #NextGen

Definitely Not Boring. The Radiant Plan describes the path we’re taking to build the first portable nuclear reactor and how we’ll use it to power industrial change today and power interplanetary exploration tomorrow. What does it take to build a nuclear reactor from scratch and why is it critical we do so now? Radiant CEO and Founder Doug Bernauer sat down with Packy McCormick for a deep dive on uncovering the potential of portable nuclear, how he started a company in a pandemic, and what this game-changing technology means for all of us. Read on for never before seen pictures of Doug’s front yard wheat farm, insight into the Radiant Plan and how we plan to use portable microreactors to improve life on earth and power civilization off it. https://bit.ly/nbradiant