Is Space-Based Solar Power a Viable Future Energy Source?

Tech & AI | July 15, 2024, 2:23 p.m.

Space-based solar power is not just a fantasy, but a potentially cost-effective and safe way to combat climate change. Experts from Space Solar, the European Space Agency, and the University of Glasgow believe that beaming solar power from space to Earth could be a viable solution, despite the many engineering challenges that need to be overcome. Designs for space-based solar power include using microwaves from geostationary orbits or mirrors in lower orbits to reflect sunlight onto solar farms. The power generated could be immense, with a 1-gigawatt power plant in space capable of powering hundreds of thousands of households for a year. However, building such a power plant in space presents significant physical hurdles, including the need for resilient and efficient solar cells, lightweight materials, and improved energy conversion rates. Despite the challenges, advancements in robotics technology and satellite designs like CASSIOPeiA and SPS-ALPHA are bringing space-based solar power closer to reality.