The Space Review: Making the case, again, for space-based solar power | Space matters |

Space-based solar power (SBSP) is one of those ideas that, on the surface, looks particularly attractive. Harnessing sunlight in space—where it’s not limited by the day-night cycle or weather, as on Earth—and beaming that energy to Earth could provide effectively limitless amounts of power to meet the growing needs of humanity without the resource limitations or environmental impacts of alternatives like fossil fuels. However, SBSP’s beauty may be only skin-deep: once you start to dig into the details, from the technical challenges of building massive structures in space to the costs of doing so, it’s easy to understand why the SBSP concept has made little progress since first conceived by Peter Glaser over four decades ago.