Developing solar power satellites (SPS) as a major energy source for Earth will involve multiple orbital demonstrators. Satellites in low Earth orbits (LEO) will have far lower costs than demonstrators in geostationary orbit (GEO) or High Elliptical Orbits (HEO), but they have the major disadvantage that they can deliver power to a receiving and rectifying antenna (rectenna) for only a few minutes, and only once every few days. However, Equatorial Low Earth Orbits (ELEO) offers the unique advantage to effectively deliver power to the same rectennas about 10 times every day. The Space Option Star in Equatorial Low [...]