Earth Benefits of Solar Power Satellites

The potential of solar energy to meet global needs is surveyed with emphasis on solar energy conversion in space for use on Earth. The advantages of this approach are compared with terrestrial solar energy conversion methods. The concept of the solar power satellite (SPS) is presented and the technology options for converting solar energy in space, transmitting power, and converting it on Earth into electricity are summarized. The requirements for space transportation systems, orbital assembly, and maintenance are reviewed. Economic and institutional issues are outlined and the environmental impacts of SPS operations are highlighted. A phased SPS development program is presented and possible organizational structures to achieve the potential of this major option for power generation on Earth are outlined