On a blustery November day, a Cessna turboprop flew over Pennsylvania at 5,000 meters, in crosswinds of as much as 70 knots—almost as quick because the little airplane was flying. However the bumpy situations didn’t thwart its mission: to wirelessly beam energy all the way down to receivers on the bottom because it flew by.
The check flight marked the primary time energy has been beamed from a shifting plane. It was performed by the Ashburn, Virginia-based startup Overview Vitality, which emerged from stealth mode in December by asserting the feat.
However the better function of the flight was to display the feasibility of a a lot grander ambition: to beam energy from area to Earth. Overview plans to launch satellites into geosynchronous orbit (GEO) to gather unfiltered photo voltaic vitality the place the solar by no means units after which beam this abundance again to humanity. The photo voltaic vitality can be transferred as near-infrared waves and obtained by present photo voltaic panels on the bottom.
The far-flung technique, generally known as space-based solar energy, has turn into the topic of each daydreaming and severe analysis over the previous decade. Caltech’s House Photo voltaic Energy Challenge launched an illustration mission in 2023 that transferred energy in area utilizing microwaves. And terrestrial energy beaming is coming alongside too. The U.S. Protection Superior Analysis Initiatives Company (DARPA) in July 2025 set a brand new report for wirelessly transmitting energy: 800 watts over 8.6 kilometers for 30 seconds utilizing a laser beam.
However till November, nobody had actively beamed energy from a shifting platform to a floor receiver.
Overview’s check transferred solely a sprinkling of energy, nevertheless it did it with the identical elements and strategies that the corporate plans to ship to area. “Not solely is it the primary optical energy beaming from a shifting platform at any substantial vary or energy,” says Overview CEO Marc Berte, “but in addition it’s the primary time anybody’s actually finished an influence beaming factor the place it’s the entire practical items all working collectively,” he says. “It’s the identical methodology and performance that we’ll take to area and scale up in the long run.”
The strategy was compelling sufficient that energy beaming skilled Paul Jaffe left his job as a program supervisor at DARPA to affix the corporate as head of techniques engineering. Previous to DARPA, Jaffe spent three many years with the U.S. Naval Analysis Laboratory.
“This really sounds prefer it might work,” -Paul Jaffe
It was listening to Berte clarify Overview’s plan at a convention that helped to persuade Jaffe to take an opportunity on the startup. “This really sounds prefer it might work,” Jaffe remembers considering on the time. “It actually looks like it will get round a variety of the showstoppers for lots of the opposite ideas. I keep in mind coming house and telling my spouse that I virtually felt like the issue had been solved. So I believed: Ought to [I] do one thing which is sort of remarkable—to depart in the course of being a DARPA program supervisor—to attempt to do one thing else?”
For Jaffe, probably the most compelling motive was in Overview’s answer for space-based photo voltaic’s energy density drawback. A beam with low energy density is safer as a result of it’s not blasting an excessive amount of concentrated vitality onto a single spot on the Earth’s floor, nevertheless it’s much less environment friendly for the duty of delivering usable photo voltaic vitality. The next-density beam does the job higher, however then the researchers should engineer some option to preserve security.
Startup Overview Vitality demonstrates how space-based solar energy may very well be beamed to Earth from satellites Overview Vitality
House-Based mostly Photo voltaic Energy Makes Waves
Many researchers have settled on microwaves as their beam of alternative for wi-fi energy. However, along with the protection issues about taking pictures such intense waves on the Earth, Jaffe says there’s one other drawback: microwaves are a part of what he calls the “beachfront property” of the electromagnetic spectrum—a spread from 2 to twenty gigahertz that’s put aside for a lot of different functions, reminiscent of 5G mobile networks.
“The very fact is,” Jaffe says, “for those who someway magically had a completely operational solar energy satellite tv for pc that used microwave energy transmission in orbit at this time—and a multi-kilometer-scale microwave energy satellite tv for pc receiver on the bottom magically in place at this time—you possibly can not flip it on as a result of the spectrum will not be allotted to do this sort of transmission.”
As a substitute, Overview plans to make use of less-dense, wide-field infrared waves. Current utility-scale photo voltaic farms would be capable to obtain the beamed vitality identical to they obtain the solar’s vitality throughout daytime. So “your receivers are already constructed,” Berte says. The following main step is a prototype demonstrator for low Earth orbit, after which he hopes to have GEO satellites beaming megawatts of energy by 2030 and gigawatts by later that decade.
Loads of doubts in regards to the feasibility of space-based energy abound. It’s an unique know-how with a lot left to show, together with the power to outlive orbital particles and the exorbitant value of launching the ability stations. (Overview’s satellite tv for pc will likely be constructed on earth in a folded configuration and it’ll unfold after it’s delivered to orbit, in response to the corporate).
“Getting down the associated fee per unit mass for launch is a giant deal,” Jaffe says. “Then, it simply turns into a query of accelerating the precise energy. A whole lot of the applied sciences we’re engaged on at Overview are squarely centered on that.”
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