Welcome to Space Future. This site is for everyone who wants to go to space.About Space Future
Radio interviews with Space Future's founders and correspondents:
Subscribe to site news and journal updates:
Here are some key documents from the archive to get you started:
|Origin:||Proceedings of 5th International Energy Conference, paper no. 450-1, Vol 3, pp 50-59|
This paper considers the prospects for delivering electric power from space to Earth on a large scale. In order to provide the world population with average electricity supplies of 1 kW capacity per head during the 21st century, an average of some 100 GW of new capacity would have to be installed each year. To achieve this using existing electricity generation technology is probably not possible. One approach that may be feasible is the delivery of electricity from "satellite solar power stations" (SPS) in space to microwave power receiving antennas (rectennas) on Earth. It is concluded that if the "SPS 2000" pilot plant and "Delta Clipper" reusable launch vehicle projects achieve their stated cost goals, SPS may be able to supply competitive electric power to Earth on the necessary scale.