1997 Mankins NASA SPS Fresh Look

GEO SPS with Multiple Relay Space Solar Power Concept Summary • GEO solar collector transmits to a series of relay satellites • Passive relay satellites in successively lower orbits relay power via mesh Fresnel lenses • Relay transmission reduces aperture size of any single element, especially the GEO satellite • Space segment concept for reducing aperture size by adding multiple relays • GEO SPS could be scaled-down version of any other GEO concept • Modest space Infrastructure requirement • Operations complexity and cost to manage relay links expected to be very high • Single ground site may be reduced in size

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