Core Viewpoint - The development of space-based solar power stations is seen as a crucial solution to the energy crisis of the 21st century, leveraging the abundant solar energy available in space compared to terrestrial limitations [1][2]. Group 1: Reasons for Building Space Power Stations - Space power stations aim to efficiently harness solar energy by relocating solar power generation to space, where solar energy is less affected by atmospheric conditions and can achieve higher power output [1]. - Estimated power generation capabilities indicate that solar panels in geostationary orbit can produce 10-14 kW per square meter, significantly higher than the 0.4 kW in China's northwest region and 7-8 kW in the stratosphere [1]. Group 2: Technical Challenges - Constructing a space power station presents multiple technical challenges, including the need for a structure equivalent to 1,400 football fields, with a power output in the megawatt range and a lifespan of over 30 years [3]. - Key areas requiring breakthroughs include materials, transportation, spacecraft control, in-orbit assembly, and maintenance [3]. - The concept of using numerous small satellites to assemble large solar power systems or employing 3D printing in space for manufacturing is suggested as potential solutions [3]. Group 3: Advantages of Space Power Stations - Space power stations can provide targeted power supply to remote areas, disaster zones, and critical facilities without relying on large-scale power grids, enabling mobile charging solutions for electric vehicles [2]. - The ability to collect and utilize solar energy on a large scale without interference from weather or geographical factors positions space power stations as a viable alternative to traditional energy sources, comparable to nuclear power plants in output [1].