China Tests Wireless Power System for Space Solar Stations

Imagine charging your phone, powering your car, or lighting your home with clean energy beamed directly from space. Chinese researchers just moved that future one major step closer to reality.

Scientists at Xidian University completed ground tests of an advanced wireless power transmission system designed for space-based solar stations. The system successfully transmitted over 1,000 watts of power wirelessly across 100 meters to multiple moving targets at once.

The project, called "Zhuri" (meaning "sun chasing"), uses a 75-meter testing facility to simulate how orbital solar panels would collect and transmit energy. Unlike ground-based solar farms, space stations would capture sunlight 24/7 without weather interference or nighttime interruptions.

Led by Professor Duan Baoyan from the Chinese Academy of Engineering, the team achieved 20.8% transmission efficiency while delivering 1,180 watts of power during recent tests. That's enough energy to power a laptop, charge multiple devices, or run small appliances.

The breakthrough marks significant progress from the team's 2022 demonstration, which only transmitted power to a single stationary target. Now the system can power satellites, drones, ground infrastructure, and potentially deep-space spacecraft simultaneously while they're in motion.

The Ripple Effect

This technology could transform how humanity powers itself. Space-based solar stations would provide constant clean energy regardless of time or weather, helping nations reduce carbon emissions without the intermittency problems plaguing current renewable energy sources.

The system could also revolutionize space exploration. Spacecraft could receive power wirelessly while in orbit, eliminating the need to carry heavy fuel or rely solely on limited battery systems for long missions.

Associate Professor Fan Guanheng notes the technology could create entirely new possibilities for orbital charging stations. Future satellites and spacecraft wouldn't need to return to Earth for refueling or battery replacement.

China isn't alone in pursuing space-based solar power, but this successful demonstration of multi-target wireless transmission represents a significant technical milestone. The team spent nearly four years advancing from single-point transmission to simultaneous power delivery.

The next phase involves scaling up the system and eventually testing components in actual orbital conditions. While commercial deployment remains years away, the successful ground verification proves the core technology works.

Clean energy from space is no longer science fiction. It's becoming engineering reality, one wireless transmission at a time.