With the rapid advancement of commercial spaceflight, space-based solar power—harnessing solar energy in orbit—is emerging as a significant new application. Unlike terrestrial photovoltaics, which are limited by day-night cycles, weather conditions, and atmospheric attenuation, space-based systems can receive intense, uninterrupted sunlight, enabling far higher energy conversion efficiency. In recent years, companies like SpaceX and Rocket Lab have dramatically reduced launch costs, making it increasingly economically viable to deploy large-scale photovoltaic systems in orbit. Governments and private enterprises worldwide are actively exploring concepts for Space-Based Solar Power (SBSP) stations that could wirelessly transmit electricity to Earth via microwaves or lasers, offering a stable and clean energy source. Additionally, the explosive growth of low-Earth orbit satellite constellations—such as Starlink—has intensified demand for lightweight, high-efficiency, and reliable power systems, further accelerating the development and deployment of advanced space photovoltaic technologies. Driven by both the maturing commercial space ecosystem and the global push toward energy transition, space-based solar power is poised to evolve from theory to large-scale implementation, potentially becoming a key pillar of the future clean energy landscape.
随着商业航天的迅猛发展，太空光伏（即在太空中利用太阳能发电）正成为新兴的重要应用方向。传统地面光伏受限于昼夜更替、天气变化和大气衰减等因素，而太空光伏可全天候接收高强度太阳辐射，能量转换效率显著更高。近年来，SpaceX、Rocket Lab等商业航天公司大幅降低发射成本，使得将大型光伏系统送入轨道在经济上逐渐可行。同时，各国政府与私营企业正积极探索太空太阳能电站（SBSP）概念，旨在通过微波或激光将电能无线传输回地球，为地面提供稳定、清洁的能源。此外，近地轨道卫星星座（如Starlink）对高效、轻量、可靠的能源系统需求激增，也推动了高性能太空光伏技术的研发与部署。可以预见，在商业航天生态持续成熟和全球能源转型加速的双重驱动下，太空光伏有望从概念走向规模化应用，成为未来清洁能源体系的重要组成部分。
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