Episode
How Two Grad Students Teamed Up With Sam Altman to Build an $8 Billion Nuclear Energy Company
- Podcast
- Business for Good Podcast
- Published
- Sep 1, 2026
- Duration seconds
- 2876
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Summary
How does a nuclear energy startup with roughly a million dollars in revenue become an $8 billion publicly traded company sitting on $3 billion in cash? In this episode of Business For Good, Paul Shapiro sits down with Caroline DeWitte, Co-founder and COO of Oklo, to find out what investors are betting on and why the company believes it can deliver. Oklo is building compact nuclear powerhouses that use fast neutrons to extract up to 95 percent of the energy in nuclear fuel, compared to roughly five percent in conventional reactors. The company plans to run its first plants on recycled fuel from a reactor that operated from the 1960s through the 1990s, turning what most people consider nuclear waste into a viable energy source. DeWitte explains how the system shuts itself down through natural physics if something goes wrong, eliminating the need for the layers of backup systems that drive up costs in traditional nuclear plants. The conversation traces Oklo's evolution from a one-megawatt micro-reactor concept to 75-megawatt powerhouses designed for data centers and utilities. DeWitte discusses how Sam Altman became an early backer and longtime board chair, why the company chose to go public through a SPAC during what she calls the doldrums after the SPAC rush, and how President Trump's reactor pilot program allowed Oklo to begin construction under an accelerated Department of Energy pathway. Things You Will Learn: How fast reactors can recover up to 95 percent of the energy in nuclear fuel, compared to roughly five percent in conventional water-cooled reactors. Why Oklo's reactor design shuts itself down through natural physics without any human intervention. How the company went from a grad school idea to an $8 billion publicly traded company backed by Sam Altman. Why P…