KRONOS FUSION ENERGYWHITEPAPER 101 / 104
The Mode D2/M Evolution — Cleaner and More Durable

Breeder Physics Closed; Burner Closing Point Locked on One Requirement

The breeder's power balance is closed and reproduces; the burner has a reproducible closing point contingent on a single named requirement.

The two machines are at different, honestly stated places. The breeder's physics is closed: it reaches Q 3.424 at 88.7 MW and breeds 4 kg of tritium a year, closing without a wall, and it reproduces from the deposited config. The burner has a reproducible closing point too — Q_E 1.31 at helium-3 fraction 0.30 — but that closure is REQUIREMENT-class: it rests on an end-plug density near 347 times what has been measured, specified rather than demonstrated.

The science

Breeder H01-H05 (Q 3.424, closes_nowall) reproduces at config 22021. The burner's Q_E 1.31 / f_n 5.44% closing point (M-45) reproduces on the deposit's own solver, but only at plug density ratio n_p/n_c ~16; at the reference ratio 10 it does not close (Q_E 0.63, net -160 MWe). The plug density is the single largest open item (M-47, H53). The environmental items — economics, public dose, waste class — are engineering and procurement with known solutions.

Why it matters

Honesty about where each machine stands is the load-bearing claim. The breeder's physics is done; the burner has a reproducible net-positive point whose realization hinges on one hard, named confinement requirement. Neither is oversold, and the earlier non-reproducible burner gains (Q_E 1.002 / 1.191 / 1.825) are withdrawn rather than defended.

The numbers

Breeder physicsQ 3.424, 88.7 MW, closes no-wall (frozen, reproduces)
Burner closing pointQ_E 1.31, f_n 5.44% (reproducible)
Burner caveatrequirement-class: plug ~16 (347x GDT), not demonstrated
Reference n_p/n_c=10does NOT close (Q_E 0.63)
Withdrawnburner Q_E 1.002 / 1.191 / 1.825 (non-reproducible)
Straight answersBreeder closure is frozen and reproduces; the burner closing point (M-45) reproduces but is requirement-class (M-47), never presented as demonstrated. The capital number, margins, lunar He-3, and the plug-density requirement stay explicitly open.
Kronos is the fusion company that shows its work. Every figure here traces to the openly deposited Kronos simulation programme and design-point records (CC BY 4.0). Read the series, run the code, check us. — All whitepapers
Conceptual design and simulation study; no machine has been built. Quantitative values are simulation-derived and carry the feasibility gates named in the text; superseded values are kept in the record with era labels. This document is informational and is not an offer of securities. © 2026 Kronos Fusion Energy, Inc. · Los Angeles, California.
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