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THURSDAY, JULY 10, 2025
China tests maiden tech that could transmit solar power from space

World+Biz

TBS Report
18 June, 2022, 10:55 am
Last modified: 18 June, 2022, 10:59 am

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China tests maiden tech that could transmit solar power from space

TBS Report
18 June, 2022, 10:55 am
Last modified: 18 June, 2022, 10:59 am
Xidian University has built a 75 meter-tall ground verification system to perform and test all phases of space-based solar power generation and transmissionXidian University
Xidian University has built a 75 meter-tall ground verification system to perform and test all phases of space-based solar power generation and transmissionXidian University

Chinese researchers have successfully tested a technology that could one day wirelessly transmit solar power from outer space to Earth.

The  "full-link, full-system space solar power ground verification system," was built at Xidian University in Xi'an, North-Central China – former capital of the country, reports Bloomberg.

This 75-m (246-ft)-tall ground verification system has been designed to enable research into "high-efficiency light-concentrating and photoelectric conversion, microwave conversion, microwave emission and waveform optimization, microwave beam pointing measurement and control, microwave reception and rectification, and smart mechanical structure design."

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The construction of the system began in 2018 under the direction of Duan Baoyan.

The power station first captures sunlight high above the ground and converts it into microwave beams. 

It then transmits through the air to a receiver station on the ground, where it can be converted back to electricity. While the model only sends the energy 55 meters through the air, the researchers hope the technology could one day be expanded to send power from orbiting solar panels to Earth.

The research team behind it recently conducted tests in front of a panel of outside experts, who verified its success on June 5, the university said in a press release. 

The promise of solar power from space is that it would eliminate the clean energy technology's biggest drawback -- not being able to operate in darkness -- by putting the panels in orbit where they can evade Earth's shadow. 

China isn't the only country looking into the technology. Researchers at the California Institute of Technology launched a space solar program after a $100 million grant in 2013. 

Researchers in India, Russia, the UK and France are also exploring possibilities, and Japan is particularly advanced in the field, according to Xidian. 

While individual components of solar-from-space technology have been tested before, the Chinese researchers are the first to successfully test a full-system model, Xidian said.

Tech / Top News

Solar / Solar Energy / space

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