Energy Aperture

Value chain · CLM-1198

In plain terms

The first project's receiving site is a circle 2 km across, with two hours of batteries on the ground.

The claim as recorded

For Project #1 the survey's Table 1 gives a rectenna of 1,000 m radius and 3,140,000 m2, with 2 hours of ground battery storage at 172 dollars per kWh costing 66 million dollars; Project #8 has a 2,178 m radius and 14,900,000 m2.

Scope and limits

THE VENDOR'S OWN FIGURES. SRC-013 is Virtus Solis's survey of its competitors and itself (T4), and states "Data associated with the Virtus Solis system was internally generated" (PDF 2). No held source checks them independently; SRC-076 Table 1 (PDF 12) repeats only the rectenna size, from manufacturers' claimed values (PDF 11), and gives no storage figures. The rectenna is given as a radius, so a circle; no ellipse for a slant beam is described. Own arithmetic: pi x 1,000^2 = 3.14 x 10^6 m2, matching; pi x 2,178^2 = 14.9 x 10^6 m2, matching. SRC-076 Table 1 gives the Virtus Solis P1 rectenna as 2.0 km diameter, the same figure repeated. The battery cost does not follow from the table's own inputs: 200 MW x 2 h x 172 $/kWh = 68.8 million dollars against the stated 66.00; for Project #8, 2,752 against 2,652. The table does not say how Cost is derived.

What it assumes

No assumptions are recorded against this claim.

Where it comes from

SRC-013 Survey of Space Based Solar Power (SBSP): A Comparison of SBSP Reference Designs and their...
PDF 9, Table 1 at render, Project #1: "Radius of Rectenna" "m" "1,000"; "Rectenna Area" "m^2" "3,140,000"; "Storage Duration" "h" "2.00"; "Unit cost battery (x hour)" "$/kWh" "$172.00"; "Cost" "$ million" "$66.00". Project #8: "2,178"; "14,900,000".

Basis: rectenna radius in m; rectenna area in m2; ground storage duration in h; battery unit cost and cost

Cite this

energyaperture.com/c/clm-1198

CLM-1198, Energy Aperture, as of 2024.

Connected records

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

Also from SRC-013
CLM-0187The company's own 2024 analysis estimates that a single, non-reused Starship launch to low orbit would cost about $665 per kilogram, and...
CLM-0532A different space-solar-power company's own 2024 analysis estimates that a single non-reused Starship launch to low orbit would cost about...
CLM-0667One company's design deliberately avoids the standard high orbit used by other designs, because it believes waiting for compatibility with...
CLM-0668The same company's own numbers show that, using the identical rocket and the identical (chemical) engine type throughout, simply choosing a...
CLM-1194The company's first planned project is sized at 200 MW to the grid from a 732-tonne satellite, running nine-tenths of the time over a...
CLM-1195The design builds one thin, nearly kilometre-wide disc out of many metre-sized flat satellites, each with solar cells on one side and radio...
CLM-1196A separate, very light mirror flies beside each array and turns slowly, once a year, so the solar cells always see the Sun; for the first...
CLM-1197The company beams at 10 GHz and claims its beam loses nothing in space on the way down, where the other designs in its own table lose...
More on the source page.