The International Space Federation (spacefed.com): 2026-10-04

URL: https://spacefed.com/physics/spacetime-engineering-harnessing-zero-point-energy-of-the-quantum-vacuum/ Article: "Spacetime Engineering & Harnessing Zero-point Energy of the Quantum Vacuum", by Dr. William Brown, last updated 16 Feb 2026. Read in Chrome.

Found [web]

Priority 3, related work. This is a current zero-point-energy (ZPE) advocacy article, from the organisation associated with Nassim Haramein, which presents Lodge as a forerunner.
"As early as 1907 Oliver Lodge had calculated values for the energy of free space via naive calculations of the density of the æther—the quantum vacuum being a transmogrified æther—of 10²⁶ J/cm⁻³ or (by the E = mc² equivalency) 10,000 tons cm⁻³."
It quotes the 1907 "3 × 10¹⁷ kWh ... every cubic millimeter of space" passage.
It cites Nature 75: 519 (1907), Kragh (2012, A&G 53: 1.24), and Phil. Mag. 13: 488 (DOI 10.1080/14786440709463624).
It quotes Lodge: "There is nothing paradoxical, nor, so far as I can see, improbable, about these figures… and the inertia [i.e., mass] of matter must be a mere residual fraction of the inertia of the continuous incompressible complex fluid". This matches Nature 1907 p.519, read from the page image.
The author's comparison: Lodge's figure is "~10⁸⁷ times smaller" than the Planck-cutoff vacuum energy (about 10¹¹³ J/m³).
The rest of the article covers Casimir effects, the Haisch-Moddel US 7,379,286 vacuum-energy patent, EmDrive, the Mach effect thruster, McCulloch's quantized inertia and IVO's Quantum Drive.

Stake: the site promotes vacuum-energy technology, so its framing is that party's characterisation.
The "10,000 tons cm⁻³" figure is copied from Kragh. By arithmetic it should be about 10⁶ tonnes per cm³ (see the arXiv note) [computation]. The 10²⁶ J/cm³ figure is correct for 10³³ erg/cm³.
Bearing: claim 3 (energy density). It shows Lodge's dense-ether energy being taken up by present-day vacuum-energy advocates.