SERT went about developing a solar power satellite (SPS) concept for a future gigawatt space power system, to provide electrical power by converting the Sun's energy and beaming it to Earth's surface, and provided a conceptual development path that would utilize current technologies. Space-based solar power (SBSP or SSP) is the concept of collecting in with solar power satellites (SPS) and distributing it to. Its advantages include a higher collection of energy due to the lack of AdvantagesThe SBSP concept is attractive because space has several major advantages over the Earth's surface for the collection of solar power: • It is always in space and full sun. One problem with the SBSP concept is the cost of space launches and the amount of material that would need to be launched. Much of the material launched need not be delivered to its eventual orbit immediately, which raises the possibility that high efficiency (but slower). The potential exposure of humans and animals on the ground to the high power microwave beams is a significant concern with these systems. At the Earth's surface, a suggested SPSP microwave beam would have a maximum intensity at its center, of 23 mW/cm. In 1941, science fiction writer published the science fiction short story "", in which a space station transmits energy collected from the Sun to various planets using microwave beams. The SBSP concept, originally known as satellite solar-power. Space-based solar power essentially consists of three elements: 1. collecting solar energy in space with reflectors or inflatable mirrors onto or heaters for thermal systems2. to Earth via or From lunar materials launched in orbit, noting the problem of high launch costs in the early 1970s, proposed building the SPS's in orbit with materials from the. from the Moon are potentially much lower than from Earth because of the lower.
