Startup says seawater uranium extraction could extend nuclear fuel supply

Fluxnium has developed fibers to extract uranium directly from seawater, claiming the ocean contains enough of the element to power civilization for millennia.

First covered Sep 16, 2026 · 6:00 AM PT · 1 article · no longer in the live window

Startup says seawater uranium extraction could extend nuclear fuel supply — Image via techcrunch.com

Coverage

10d TechCrunch Climate Clean tech startup Fluxnium found a way to tap 50,000 years’ worth of nuclear fuel — Fluxnium's fibers can extract uranium directly from seawater, which has enough of the nuclear fuel to power thousands of generations.

Primary sources

eia.gov Uranium Marketing Annual Report - U.S. Energy Information Administration (EIA)

energy.gov U.S. Sets Targets to Triple Nuclear Energy Capacity by 2050

More coverage from around the web

uk.finance.yahoo.com Clean tech startup Fluxnium found a way to tap 50,000 years’ worth of nuclear fuel

ground.news Exclusive: Clean tech startup Fluxnium found a way to tap 50,000 years' worth of nuclear fuel

image-ppubs.uspto.gov Method for electrochemical extraction of uranium from seawater using oxygen vacancy (OV)-containing metal oxide

ncbi.nlm.nih.gov Highly Efficient Electrocatalytic Uranium Extraction from Seawater over an Amidoxime‐Functionalized In–N–C Catalyst

arxiv.org Isolation of $^{236}$U and $^{239,240}$Pu from seawater samples and its determination by Accelerator Mass Spectrometry

Appeared in: 2026-09-17 (#20)

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