Core Viewpoint - The increasing electrification of human life and advancements in big data and AI are driving unprecedented global energy demand, positioning space-based solar power (SBSP) as a potential pathway to a clean and abundant energy future [1][2]. Group 1: Advantages of Space-Based Solar Power - SBSP can provide stable and reliable baseload power, which has traditionally relied on fossil fuels or nuclear energy [3]. - The intensity of sunlight in space is 5-10 times greater than on Earth, allowing for higher energy generation efficiency and significant land resource savings [2][3]. - A NASA study predicts that a model of SBSP could generate power 99% of the time in a year [3]. Group 2: Global Developments and Investments - A global "space race" for sustainable energy is underway, with countries and private enterprises increasing investments in SBSP [4]. - In August 2023, the California Institute of Technology successfully demonstrated a prototype for space-based solar energy transmission [4]. - China aims to achieve breakthroughs in SBSP by 2028, with ongoing projects in Chongqing and Xi'an [4]. - The European Space Agency has initiated the SOLARIS pre-research program with a budget of €60 million to develop core technologies for SBSP [4]. Group 3: Technological Challenges - Key challenges include high launch costs, as building a large SBSP system will require numerous launches despite decreasing satellite launch costs [7]. - Efficiently transmitting gigawatt-level power back to Earth remains a significant technical hurdle [7]. - The need for autonomous robots to assemble and maintain large space structures in orbit is another critical challenge [7].