Value chain · CLM-0235
In plain terms
A 2020 UK study rated the UK behind other countries in many technologies for a solar power satellite. For three key ones, large mirrors, space solar panels and power beaming, it named the UK's lack of manufacturing experience or capacity as the main barrier. It rated closing these three gaps by 2050 as medium to very high difficulty, depending on the technology.
The claim as recorded
The same 2020 UK study's Table 5 (PDF pp.24-29) rates UK Technology Readiness Level (TRL) at 3 for nine critical technologies. For the three satellite collect, convert and transmit technologies (PDF p.24), it gives an "International" TRL of 5 for a large (km scale) mirror in space, 6 for high-efficiency space photovoltaics and power electronics, and 4 for microwave power-beam transmission at scale. It names UK manufacturing experience or capacity as the main UK barrier for each of these three. It rates the difficulty of closing each gap by 2050 as "Very High" for microwave power-beam transmission, "High" for large mirrors, and "Medium" for space PV, and judges all three technically feasible by 2050.
Scope and limits
TRL measures technology maturity, not manufacturing throughput, workforce size, or production rate; the table gives no target production rate, so it cannot on its own answer "manufacturing rate needed" - only how mature each technology is in the UK and internationally. The TRL figures are technology readiness levels assessed by the study's authors in 2020, not manufacturing readiness levels (MRL). No later UK-vs-international TRL comparison was found as of 2026-10-01.
What it assumes
the report's own UK-vs-International TRL definitions and assessments are applied consistently across subsystems; "Yes" (technically feasible by 2050) is the assessing team's own judgement, not a demonstrated fact.
Where it comes from
Table, PDF page 24: "Satellite collect / Large (km scale) mirror in space / [UK TRL] 3 / Experience of manufacturing large reflective surfaces for use in space. / [Intl. TRL] 5 / Manufacturing capacity for large reflective surfaces in space. / Yes / High" and "Satellite convert / High efficiency space photovoltaics (PV) and power electronics / [UK TRL] 3 / Manufacturing capacity for solar panels for space. / [Intl. TRL] 6 / Technology development of High Capacity Solar Panel (HCPV) is required to reduce mass and increase efficiency. / Yes / Medium" and "Satellite transmit / Microwave power beam transmission at scale / [UK TRL] 3 / Experience manufacturing large, efficient, power transfer antennas. / [Intl. TRL] 4 / ... / Yes / Very High"
Basis: Technology Readiness Level (TRL) scale, UK vs "International" comparison, as assessed by the study's authors
Related records
- Answers question
- QST-002 not published in this release
Cite this
energyaperture.com/c/clm-0235
CLM-0235, Energy Aperture, as of 2020.
Connected records
Other published records linked to this one. A list, not a judgement.
- Also from SRC-024
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