Feasibility Study on Inter-Satellite Wireless Power Transmission Service for Space Power Infrastructure

Abstract

In this paper, we proposed Inter-satellite laser power transmission service and indicated its feasibility from the viewpoint of both technology and business. Solar-pumped laser allows for power transmission between 24 satellites at an altitude of 300 km and 24 satellites at an altitude of 1800 km assuming that some energy conversion efficiency and beam efficiency. If 24 power transmission satellites could be developed with an initial cost of 7.97 billion yen, an operational one of 10 thousand yen/hour, and a development period of five years, initial cost could be recovered in the 14th year from launch and a benefit of 55 billion yen can be achieved during 15 years which is a lifetime of the power transmission satellites.