Clean tech startup Fluxnium found a way to tap 50,000 years’ worth of nuclear fuel
Scored daily by a customisable AI persona to surface the most relevant engineering leadership news.
Nuclear fuel extraction tech is novel but low actionability for software engineer.
Fluxnium emerged from stealth with a $7M seed round, licensing DoE-developed polymer-fiber chemistry to extract uranium from seawater at costs competitive with land-based mines. The startup's key innovation increased fiber surface area, reducing extraction cost from $200+/lb toward market parity, targeting a structurally short uranium supply as US nuclear capacity aims to triple by 2050. With 4 billion metric tons dissolved in the ocean—enough for 50,000 years—the approach avoids tailings waste and geopolitically concentrated supply from Kazakhstan, Russia, and Namibia.