Aetherflux, a new space technology company founded by Robinhood co-founder Baiju Bhatt, is preparing to demonstrate an innovative system for beaming solar power from space to Earth using laser technology. The startup recently secured $50 million in Series A funding to advance its ambitious plans.
The company aims to create a network of small satellites in Low Earth Orbit that will collect solar energy and transmit it to Earth using infrared lasers. This approach differs from other space-based solar projects that typically use microwave transmission systems.
According to Aetherflux's plans, the transmitted power will be received by compact ground stations measuring 5-10 meters in diameter. These portable receivers could provide electricity to remote islands, disaster-struck areas, and military operations worldwide.
The U.S. Department of Defense has shown interest in the technology, with Aetherflux receiving support through the Operational Energy Capability Improvement Fund. The company has also partnered with Apex Space, a Los Angeles-based spacecraft platform provider, for the satellite bus development.
While the concept faces technical challenges, including temperature fluctuations and precise beam synchronization requirements, Aetherflux reports successful power transmission tests in laboratory conditions. The company has accumulated $60 million in total funding and plans to launch its first orbital demonstration in 2026.
This initiative joins other international efforts in space-based solar power, including projects by China, the European Space Agency, and Caltech, which recently demonstrated microwave-based power transmission from space.
The development of space-based solar power technology could mark a new chapter in renewable energy, potentially offering a constant power supply unaffected by weather conditions or day-night cycles on Earth.