MetroVolt's economics are published as a ladder, not a point: first-of-a-kind at $84–92/MWh, an NOAK trajectory of $48–84 across capex scenarios, and fleet maturity at $48–56 — every rung generated by a deposited, runnable calculation.
The ladder's engine is simple and stated: 7% WACC, 25-year amortization, 0.90 capacity factor, O&M-plus-fuel of $19–21/MWh tiered with capex class, and Wright's-law learning at 14.5% applied to first-of-a-kind capital of $6,500 / $9,000 / $11,500 per kWe (low / central / high). The nine NOAK-table cells that result — 55/52/48, 69/65/60, 84/79/72 across units 20/30/50 — reproduce from the deposited S63 script, deltas printed where rounding differs by a dollar.
A speculative long-run floor of $18–30/MWh is discussed in the series with its assumptions exposed; the ladder's committed rungs stop at fleet $48–56.
Fusion economics has a credibility problem built from single-point promises. A ladder with a runnable generator inverts that: the assumptions are the pitch. At the central trajectory MetroVolt meets firm-power markets on price without subsidies in the model — and every skeptic is one script away from checking.
| FOAK | $84–92 / MWh |
| NOAK trajectory (units 20–50) | $48–84 / MWh |
| Fleet maturity | $48–56 / MWh |
| Basis | 7% WACC · 25-yr · CF 0.90 · LR 14.5% |
| Generator | S63 script + CSV, deposited |