extract: 2026-03-18-moonvillage-he3-power-mobility-dilemma #1333

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@ -36,6 +36,12 @@ LunaGrid-Lite completed CDR in August 2025 and is fabricating flight hardware fo
Interlune's full-scale lunar excavator prototype processes 100 metric tons of regolith per hour, but the press release emphasizes 'reduced power consumption' without providing specific kW requirements. This creates an observable gap between demonstrated hardware capability (excavation throughput) and the power infrastructure needed to operate it continuously. LunaGrid's 1kW demonstration scale is orders of magnitude below what continuous 100-tonne/hour excavation would require, making power the binding constraint on whether this hardware can actually operate as designed. Interlune's full-scale lunar excavator prototype processes 100 metric tons of regolith per hour, but the press release emphasizes 'reduced power consumption' without providing specific kW requirements. This creates an observable gap between demonstrated hardware capability (excavation throughput) and the power infrastructure needed to operate it continuously. LunaGrid's 1kW demonstration scale is orders of magnitude below what continuous 100-tonne/hour excavation would require, making power the binding constraint on whether this hardware can actually operate as designed.
### Additional Evidence (extend)
*Source: [[2026-03-18-moonvillage-he3-power-mobility-dilemma]] | Added: 2026-03-18*
Heat-based He-3 extraction quantifies the power constraint: traditional thermal methods require 12 MW solar concentrators for 1,258 tonnes/hour throughput, or 'seven-digit wattage' for mobile processing units. The power-mobility dilemma shows that power constraints create second-order logistics failures where even if power were available, the spatial distribution of resources (~40 million km² for He-3) makes centralized processing transportation-prohibitive.
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Relevant Notes: Relevant Notes:

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@ -0,0 +1,24 @@
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@ -7,9 +7,13 @@ date: 2026-03-18
domain: space-development domain: space-development
secondary_domains: [] secondary_domains: []
format: analysis format: analysis
status: unprocessed status: enrichment
priority: high priority: high
tags: [helium-3, lunar-isru, feasibility, critical-analysis, power-constraints] tags: [helium-3, lunar-isru, feasibility, critical-analysis, power-constraints]
processed_by: astra
processed_date: 2026-03-18
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--- ---
## Content ## Content
@ -49,3 +53,12 @@ Two approaches both fail:
PRIMARY CONNECTION: [[power is the binding constraint on all space operations because every capability from ISRU to manufacturing to life support is power-limited]] PRIMARY CONNECTION: [[power is the binding constraint on all space operations because every capability from ISRU to manufacturing to life support is power-limited]]
WHY ARCHIVED: Provides the strongest counter-evidence to the "He-3 as viable first lunar resource" thesis; necessary for calibrating confidence on He-3 extraction claims WHY ARCHIVED: Provides the strongest counter-evidence to the "He-3 as viable first lunar resource" thesis; necessary for calibrating confidence on He-3 extraction claims
EXTRACTION HINT: The key scope distinction is heat-based vs. non-thermal extraction. A claim accurately characterizing this paper must specify that it applies to heat-based methods only. EXTRACTION HINT: The key scope distinction is heat-based vs. non-thermal extraction. A claim accurately characterizing this paper must specify that it applies to heat-based methods only.
## Key Facts
- Helium-3 concentration on lunar surface: ~2 mg/tonne of regolith
- Over 150 tonnes of regolith required per gram of He-3
- He-3 predominantly found in particles <100 μm
- He-3 distributed across ~40 million km² of lunar surface
- Traditional thermal extraction requires 800°C heating
- 12 MW solar concentrator needed for 1,258 tonnes/hour processing rate