The US Air Force wants to beam solar power to Earth from space (video)

Space-based solar power will not be only a sci-fi dream without end, if issues go in accordance to the U.S. Air Force’s plans.

The Air Force Research Laboratory (AFRL) is creating a challenge known as SSPIDR (“Space Solar Power Incremental Demonstrations and Research”), which goals to mature the know-how wanted to harvest solar vitality in space and beam it down to be used on Earth.

Such a functionality can be a giant benefit on the battlefield, Air Force officers stated.

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“Ensuring that a forward operating base maintains reliable power is one of the most dangerous parts of military ground operations. Convoys and supply lines are a major target for adversaries,” states the narrator of a brand new AFRL video about SSPIDR

“Ground-based solar, while seemingly an attractive solution, is limited by area, the size of collectors required and climate,” the narrator provides. “But if the solar panels were in orbit, they could have unfettered access to the sun’s rays, providing an uninterrupted supply of energy.”

The AFRL envisions sunlight-harvesting satellites outfitted with revolutionary “sandwich tiles,” which is able to convert solar vitality into radio frequency (RF) power and beam it to Earth. Down right here, receiving antennas will rework that RF vitality into usable power.

The AFRL will not construct such an operational system, but it surely hopes to pave the way towards it with SSPIDR, a collection of floor and flight experiments that assist mature the required applied sciences. 

Related: Space-based solar power gets key test on X-37B space plane

For instance, one SSPIDR experiment, often known as Arachne, will take a look at power conversion and beaming in space utilizing a sandwich tile constructed by challenge associate Northrop Grumman. Arachne is scheduled to launch to Earth orbit in 2024.

SSPIDR additionally consists of experiments known as SPINDLE and SPIRRAL, which is able to reveal the orbital deployment of a scaled-down model of a power-beaming satellite tv for pc and take a look at methods to hold satellite tv for pc temperatures in a manageable vary, respectively.

SPINDLE is scheduled to launch in 2023 on Alpha Space’s Materials International Space Station Experiment Flight Facility, which is designed to be deployed outdoors the International Space Station.

And there’s already some space solar power analysis happening over our heads. The Photovoltaic Radio-frequency Antenna Module Flight Experiment, or PRAM-FX, launched aboard the U.S. Space Force’s robotic X-37B space plane in May 2020. 

PRAM-FX is not beaming power down to Earth, however it’s serving to researchers gauge the effectivity of sandwich tiles’ sunlight-to-RF conversion. And the early returns are promising, a recent study showed.

Mike Wall is the creator of “Out There” (Grand Central Publishing, 2018; illustrated by Karl Tate), a guide concerning the seek for alien life. Follow him on Twitter @michaeldwall. Follow us on Twitter @Spacedotcom or Facebook. 

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