JAXA's retrodirective beam control: advancing space-based solar power (SSPS) transmission.

JAXA's demonstration of retrodirective beam control for Space-Based Solar Power (SSPS) transmission marks a crucial step forward in potentially revolutionizing global energy supply. This technology aims to efficiently beam solar energy from space to Earth. While still in early stages, the discussion highlights the immense potential and the complex challenges, creating opportunities for: 1. R&D Investment: Significant opportunities for investment in core SSPS technologies, including advanced solar arrays, high-efficiency microwave/laser transmitters, and robust retrodirective control systems. 2. Infrastructure Development: Companies specializing in large-scale space infrastructure, orbital manufacturing, and automated assembly will be critical for deploying GW-scale SSPS arrays. 3. Rectenna Technology: Development of highly efficient, cost-effective rectennas on Earth, along with land-use planning and management for their deployment. 4. Regulatory & Policy Consulting: Expertise will be needed in navigating spectrum allocation, international space law, air-traffic safety, and environmental impact assessments for large-scale energy beaming. 5. Energy Sector Diversification: Traditional energy companies can explore strategic partnerships or R&D arms focused on SSPS as a future baseload energy source, competing with terrestrial storage for 24/7 clean power.