US Air Force Plans to Harvest Solar Energy in Space, Send It to Earth

The US Air Force Research Laboratory (AFRL) has shared a video on YouTube describing the initial idea and potential use of such a capability. The AFRL is dedicated to discovering, developing, and integrating affordable warfighting technologies for air and space forces.

The USAF aims to achieve something that it believes will go a long way in addressing the energy demand of its military personnel deployed at remote bases in the short term. However, it would ultimately be made available for civilian use. It wants to harvest the Sun's energy in space using solar panels and then beam it down for use on Earth. Successfully developing such a capability would be a big advantage for the USAF on the battlefield, officials say.

The new project, named Space Solar Power Incremental Demonstrations and Research Project (SSPIDR), would allow solar energy to be beamed straight down to an outpost, irrespective of the day and time and latitude and climate of the area.

AFRL says it wants to deploy sunlight-harvesting satellites in space to convert solar energy into radio frequency (RF) power and beam it to Earth, where receiving antennas will transform the RF energy into usable power.

The AFRL describes the Space Solar Power Incremental Demonstrations and Research Project (SSPIDR) as a series of integrated demonstrations and technology maturation efforts.

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