Energy Aperture

Value chain · CLM-0698

In plain terms

The Chinese cost table states a transport price of 1,000 dollars per kilogram in its column heading, but its own numbers only work out at about 482 dollars per kilogram. Every row shows the same mismatch, so it is not a rounding error. Either way the figure is far below NASA's assumed 11,050 dollars per kilogram - between 11 and 23 times below, depending which of the two you use.

The claim as recorded

CAST's cost table gives two different transport rates that do not reconcile with each other. The Transportation column header prints a rate of USD 1,000/kg, while the column's own total of USD 4,417 M over the paper's stated 9,160 t total mass implies an effective USD 482/kg. Every subsystem row reproduces the same ratio independently (solar 472, PTM 441, MPT 476 USD/kg), so the gap is systematic, not a rounding artefact. Applied to the full mass, the printed rate would give 9,160 M USD against the 4,417 M printed. Against NASA OTPS's assumed 11,050 USD/kg to GEO, NASA is 22.9x the effective rate or 11.1x the printed one. Transportation is 25.6 per cent of CAST's life-cycle cost against launch at 71-77 per cent for NASA.

T0 own calculation · medium confidence · as of 2026-09-03 · VER-563 CONFIRMED 2026-09-04 · VC10, XC02

Scope and limits

Which rate CAST intends cannot be determined from the pages read, and the register does not pick one. Plausible readings not distinguishable from the pages read: the printed 1,000 USD/kg may be a present-day reference rate while the model assumes a lower future one; the transported mass may differ from final on-orbit mass; or the parenthetical may be a misplaced unit annotation. The basis year is unstated, so both ratios mix an unknown-year USD with NASA's FY2022. These are comparisons of ASSUMPTIONS, not of demonstrated prices - no one has delivered a kilogram to GEO at either rate.

What it assumes

that Table II's "transportation" line covers Earth-to-GEO delivery of the 9,160 t space segment and nothing else.

Where it comes from

SRC-169 Modular Multirotary Joints SPS Concept - Challenges and Design Considerations. IEEE...

This is the project's own working, shown in full:

CALC-077 CAST's two transport rates, which do not reconcile with each other
Table II header verbatim at 9x zoom: "Transportation ($1000/kg)", under a table titled "Cost Analysis Result of the Space Segment (Million U.S. Dollars)". Column values 850, 600, 2000, 770, 40, 105, 52, total 4417. Per-subsystem check against Table IV's image-confirmed masses: 850 M / 1,800 t = 472 USD/kg; 600 M / 1,360 t = 441; 2,000 M / 4,200 t = 476. Total 4,417 M / 9,160 t = 482. 9,160 t at the printed 1,000 USD/kg would be 9,160 M USD. NASA figures from CLM-0245 and CLM-0144; Frazer-Nash range from CLM-0382.

Basis: USD, YEAR NOT STATED

Related records
Answers question
QST-003 not published in this release
Supersedes
CLM-0691 not published in this release

Cite this

energyaperture.com/c/clm-0698

CLM-0698, Energy Aperture, as of 2026-09-03.

Connected records

Other published records linked to this one. A list, not a judgement.

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