Abstract
Japan Aerospace Exploration Agency (JAXA) has been conducting studies on Space Solar Power Systems (SSPS) using microwave and laser beams for years since FY1998 organizing a special committee and working groups. JAXA is proposing a roadmap that consists of a stepwise approach to achieve commercial SSPS in 20-30 years. Current SSPS study undertaken by JAXA consists of three main subjects, SSPS concepts and architectures study, technology flight demonstration and major technology development. In SSPS concepts and architectures study, special committee and working groups which include 180 or more persons participate from industrial, administrative and academic sectors are organized. And some configurations of both microwave based SSPS and laser based SSPS has been studied. This paper presents the results of these study effort of JAXA.
