The Helium-3 Supply Gate
The burner's helium-3 demand is roughly 400x domestic supply per commercial unit, a hard resource gate that shapes the whole deployment path.
The single largest resource constraint in the Kronos program is stated plainly here. The burner (Aegis / MetroVolt) burns helium-3, and a commercial unit would demand roughly 400 times current domestic helium-3 supply. Helium-3 does not exist at terrestrial scale in the quantities a fleet of burners would need. This is a physics-and-supply fact, not an economics statement, and it is a hard gate.
Why the gate exists
Helium-3 is extraordinarily rare on Earth. Present terrestrial supply comes mostly as a by-product of tritium decay in limited stockpiles — small, and already spoken for by other uses. There is no natural terrestrial deposit at energy scale. A single commercial burner's appetite dwarfs this supply by about 400x.
Why breeder-bred and lunar helium-3 matter
- The breeder (Hyperion) co-produces helium-3 at roughly the ~1.97 kg/yr class, a partial terrestrial pathway.
- Lunar regolith holds helium-3 implanted by the solar wind, the only known large reservoir.
- Without one or both, commercial burner deployment is fuel-gated, full stop.
- This is a supply-existence gate, a physics fact rather than an economic one; we make no economic statement about it.
Stating this gate openly is essential to honesty. The burner's water and land advantages are real, but the machine is gated on a fuel that does not yet exist at terrestrial scale. The breeder's helium-3 co-production and lunar sourcing are the strategic answers, and both are long-horizon. This is the most important resource caveat on the site.