The technology and costs behind solar power satellites

Abstract

A Solar Power Satellite can open new opportunities in space exploration and energy production. Solar power in space is more energy-dense than on Earth and it is always available. This thesis explores different concepts of solar power satellites, obstacles, and major technology segments, and discusses ways to improve them. That is achieved by reviewing relevant literature and studies. In addition, the paper discusses the costs associated with the project, its feasibility, and its practicality. Since microwave-based solar power satellites are more practical than laser-based at this stage, this thesis mostly focuses on microwave power transmission. The LCOE was determined to be $0.35 c/kWh with a ROI of 12 years, and an initial investment of $74.56B, which makes it a high-risk investment. The project has been discussed for decades, and no major breakthroughs are required. The only major obstacle to bringing this project to life is transportation costs, which compose a large portion of the investment and increases the risk of the investment. Pursuing this project gives humankind new possibilities for energy production in space.