Value chain · CLM-0006
In plain terms
None of the five main studies mentions the international radio-frequency exposure limits, or any safety standard, or a restricted area around the receiving site.
The claim as recorded
Across five primary documents totalling 288 pages - the UK Phase 1 engineering feasibility study, the Frazer-Nash executive summary, the UK de-risking report, Cash's CASSIOPeiA paper and the NASA OTPS 2024 report - a full-text search returns zero occurrences of ICNIRP, IEEE C95, exposure limit, exposure guideline, safety standard, regulatory limit, non-ionising, exclusion zone, keep-out, restricted area or controlled area.
Scope and limits
Absence of a term is not absence of a safety case. These documents may rely on an assessment published elsewhere, and the search covers only five documents of the 413 registered as at 2026-09-12 - it read 74 until that date, which was the register's size when this was written and which made the search look five times more representative than it is. It does establish that the safety argument is not made against a named standard within these five.
What it assumes
No assumptions are recorded against this claim.
Where it comes from
SRC-012 Space Based Solar Power., 2024
SRC-022 Space Based Solar Power: De-risking the pathway to Net Zero, 2021
SRC-023 Space Based Solar Power: De-risking the pathway to Net Zero, 2021
SRC-024 Space Based Solar Power as a Contributor to Net Zero - Phase 1: Engineering Feasibility Report,...
SRC-026 CASSIOPeiA - A new paradigm for space solar power, 2019
This is the project's own working, shown in full:
CALC-040 Null measurement: exposure-standard vocabulary across the five primary SBSP documents
Full text extracted with PyMuPDF and searched case-insensitively across every page. Counts were zero for every term listed. Document character counts: SRC-024 213,716; SRC-023 44,569; SRC-022 37,965; SRC-026 48,418; SRC-012 195,955.
Related records
- Answers question
- QST-001 not published in this release
Cite this
energyaperture.com/c/clm-0006
CLM-0006, Energy Aperture, as of 2026-09.
Connected records
Other published records linked to this one. A list, not a judgement.
- Also from SRC-012
- CLM-0123NASA's own 2024 study puts space solar power at 12 to 80 times the cost it expects in 2050 from power stations on the ground, a set it...CLM-0124NASA also found that if several things improve at once, rather than just one, space solar power does become cost competitive.CLM-0125On carbon, NASA found space solar power within the range of five renewable ways of making power on the ground (wind, solar, solar thermal...CLM-0144A NASA study found that launching everything into space is by far the biggest cost of a space solar power system, and that most of those...CLM-0192The full list of assumptions behind the headline result of NASA's 2024 study, that space solar power would cost far more than ground...CLM-0193To get to a competitive cost, NASA's own 2024 analysis needs launch costs to halve, solar cells to get much more efficient, satellites to...CLM-0240A from-scratch cost model of the "Innovative Heliostat Swarm" design gets almost the same electricity cost as NASA's own study: about 62...CLM-0241For the "Mature Planar Array" design, an independent cost model built the same way as for the other design gets a materially lower...More on the source page.
- Also from SRC-022
- CLM-0178The UK government's own summary of this study repeats the same headline figures as the underlying technical report: about 5 pence per kWh...
- Also from SRC-023
- CLM-0002The summary report says the beam is strongest at the middle of the receiving site, at about 240 watts per square metre, and argues that...CLM-0003The report gives the receiving site as an ellipse roughly 7 km by 13 km, and states a beam strength of 245 watts per square metre.CLM-0005A second figure of 29 watts per square metre appears in the same report, but it measures electricity produced per unit of land, not beam...CLM-1436A UK study says that one space solar power system would typically deliver about 2 gigawatts to the grid, and it compares this with the...CLM-1441Documents give the size of the CASSIOPeiA satellite design as anything from 1 to 2 km across. For a full-size version delivering 2...CLM-1442A 2021 study for the UK government shows one design, CASSIOPeiA, as about 1.7 km across and 2,000 tonnes, sending 2 gigawatts to the grid...CLM-1443The 2021 study for the UK government says the leading designs need no new materials, but that building them at a sensible cost needs two...CLM-1444The 2021 study for the UK government concluded that space-based solar power is technically feasible, affordable at a competitive cost per...More on the source page.
- Also from SRC-024
- CLM-0001The UK government's own feasibility study describes a system beaming microwaves at about 230 watts per square metre onto the ground.CLM-0007The UK study's own experts expect the beam to interfere with electronics in its path, and think it unlikely to have much effect outside the...CLM-0235A 2020 UK study rated the UK behind other countries in many technologies for a solar power satellite. For three key ones, large mirrors...CLM-0714The 2021 UK study by Frazer-Nash Consultancy proposed that the satellite fly itself to its final orbit, using its own solar panels to run...CLM-1436A UK study says that one space solar power system would typically deliver about 2 gigawatts to the grid, and it compares this with the...CLM-1441Documents give the size of the CASSIOPeiA satellite design as anything from 1 to 2 km across. For a full-size version delivering 2...CLM-1452By our rough arithmetic, the beam of the UK's full-size reference design would carry about a million times more power than the...CLM-1472The designer of the UK's CASSIOPeiA satellite says it has no moving parts and is built from many small identical pieces, so when pieces...More on the source page.
- Also from SRC-026
- CLM-0004The author of the 2019 CASSIOPeiA paper states the beam's strongest point is about 230 watts per square metre, and says that figure was...CLM-0013The paper that modern UK studies rely on for the beam figure calls anything below 1 kilowatt per square metre safe, with 230 watts per...CLM-0336Different design studies over four decades have each simply assumed a different working lifetime for a solar power satellite, from about 15...CLM-0339A 2019 paper said solar power satellites are often assumed to need visits in orbit for repairs and refuelling, but that no system yet...CLM-0441A normal geostationary satellite needs a small, regular fuel-based nudge every year to stay in place. One 2019 design proposes cutting most...CLM-0504None of the main CASSIOPeiA-related documents in the register mentions any named safety or exposure standard, or describes any restricted...CLM-0660The 2019 CASSIOPeiA paper does not discuss electric propulsion for getting the satellite to its orbit. It only prices delivery using...CLM-1175The design would control its orientation without fuel. Small mirror panels near its front carry a coating whose reflection can be changed...More on the source page.