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Origin: Engineering Construction and Operations in Space 5, ASCE, Vol 1, pp 269-279

The paper describes the "SPS 2000" system currently being designed to operate as a pilot plant delivering 10 MW of microwave power from low Earth orbit to receiving antennas at the Earth‘s surface. Research under way on different aspects of the satellite and the ground segment, and field research under way in a number of equatorial countries is described. A number of issues other than the technical design of the system which are also of importance both in planning the system and in assessing its potential value, are also discussed.

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