Value chain · CLM-0257
In plain terms
For every kilogram of hardware launched into orbit over the station's 30-year life, RD1 generates about 30,000 kilowatt-hours of electricity, and RD2 about 17,500.
The claim as recorded
Over a 30-year system life, RD1 delivers approximately 30,122 kWh of electricity per kg of hardware launched (including refurbishment mass), and RD2 delivers approximately 17,537 kWh/kg.
Scope and limits
A physical consistency check only; does not establish whether this is a favourable or unfavourable ratio without a comparator, and the terrestrial-PV comparator figure quoted in the trace (order 10^4-10^5 kWh/kg) is ASSUMED/illustrative, not a cited study result.
What it assumes
Total hardware mass launched over the lifecycle includes the initial build plus both refurbishment cycles (3x initial upmass for RD1, 3x for RD2), consistent with the launch-count derivation in CLM-0243.
Where it comes from
This is the project's own working, shown in full:
Trace, Section 9: RD1 5.332e11 kWh / 17,700,000 kg = 30,122 kWh/kg; RD2 5.314e11 kWh / 30,300,000 kg = 17,537 kWh/kg.
Basis: physical units (kWh/kg), no currency; 30-yr system life
Related records
- Answers question
- QST-038 not published in this release
Cite this
energyaperture.com/c/clm-0257
CLM-0257, Energy Aperture, as of 2026-09.
Connected records
Other published records linked to this one. A list, not a judgement.
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