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Deep-dive
Deep Dive: The Fusion Pilot Plant
Between the physics testbed and the full commercial unit sits the Kronos FPP — a ~0.25 GW-class machine that proves integrated operation and can generate pilot revenue.
- Major radius
- R₀ = 2.7 m
- Field
- 5.8 T on axis (29 T peak conductor)
- Current
- I_p = 22 MA
- Fusion power
- ~0.25 GW-class
Scaling from a physics testbed to a full commercial reactor in one jump would be reckless, so the Kronos program includes an intermediate fusion pilot plant (FPP) — larger than the G1 testbed but smaller than full MetroVolt.
| Parameter | FPP value |
|---|---|
| Major radius R₀ | 2.7 m |
| On-axis field B₀ | 5.8 T (29 T peak conductor) |
| Plasma current I_p | 22 MA |
| Fusion power | ~0.25 GW-class |
The FPP carries the gate-adjudication mission — proving integrated operation at meaningful scale, where G1 proves the core physics and MetroVolt delivers full-scale firm power — with an optional post-gate role generating pilot revenue. It's the rung that turns validated physics into a demonstrated plant. See the gate program.