Lunar Helium-3 Supply Chain

Because terrestrial helium-3 cannot meet burner-scale fuel demand, the long-horizon supply story depends on lunar helium-3, gated to roughly 2038-40.

A supply that does not yet exist at scale

The burner (Aegis / MetroVolt) is fueled by deuterium and helium-3. Its helium-3 fuel demand is roughly 400x domestic supply per commercial unit, a gap that breeder breeding alone cannot close. The candidate source at the required scale is helium-3 embedded in lunar regolith by the solar wind over geologic time, extracted and returned to Earth.

This is a long, unproven, and expensive-in-effort supply chain that does not exist today. Kronos states the gate plainly: burner-scale operation is dependent on a lunar helium-3 supply chain reaching maturity around 2038-40. Nothing about the burner's site-power role is available before that dependency is met.

Why it is in an energy-security section

The lunar dependency is the deepest logistics fact about the burner. The machine that would cut the terrestrial fuel-logistics tail depends, at scale, on a cislunar logistics chain. This is honest full-physics framing: the fuel-supply gate is as real as the plasma-physics gates and is the reason breeder-bred and lunar helium-3 both matter.

• Burner He-3 demand ~400x domestic supply per unit
• Breeder breeding cannot close the fuel gap alone
• Lunar regolith is the candidate scale source, ~2038-40
• Burner-scale operation is gated on this chain maturing

It is worth stating the trade in one sentence: the burner would replace a terrestrial fuel-logistics tail with a cislunar one. Whether that is worthwhile depends entirely on the extraction and return chain maturing, which is a program well outside Kronos's own machines. Kronos's honest position is to name the dependency and its rough timing, not to assert that the lunar chain will exist on schedule.

Stated as a dependency, not a solved capability; the burner is a design-and-simulation study.