Thorium’s nuclear pitch: Can molten salt reactors cut cost, use waste, and scale faster than conventional designs?

Thorium’s nuclear pitch: Can molten salt reactors cut cost, use waste, and scale faster than conventional designs?

August 25, 2026 · 39 min · Episode 352

About this episode

The episode discusses the potential of thorium molten salt reactors as a cost-effective and scalable alternative to conventional nuclear designs.

Electricity demand is rising, capital is tightening, and nuclear is back in the conversation as utilities, governments, and large power users look for firm low-carbon supply. But the central question is not whether advanced nuclear can attract interest. It is whether any new design can get far enough ahead on cost, manufacturability, and fuel strategy to break from the economics that have constrained conventional nuclear for decades. Host Sylvia Leyva Martinez is joined by Thomas Jam Pedersen, co-founder and CEO of Copenhagen Atomics, to examine one of the more unconventional answers now being put forward: thorium molten salt reactors built around low-pressure operation, standardized manufacturing, and a fuel strategy that could use spent nuclear fuel alongside thorium. Their core argument is that most of the nuclear sector is still trying to improve on a legacy light-water model that may remain too expensive, too complex, and too slow to scale against the pace of future energy demand. A large part of the discussion focuses on what that alternative looks like in practice. Pedersen argues that operating at atmospheric pressure changes the cost and engineering profile of the…

People in this episode

Host: Sylvia Leyva Martinez

Guest: Thomas Jam Pedersen

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Organizations: Copenhagen Atomics

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