Overview Energy wants to beam energy from space to existing solar farms

Overview Energy emerged from stealth contiguous with a program to usage the world’s star panels arsenic nighttime collectors of powerfulness beamed down from space.

The startup plans to usage ample star arrays successful geosynchronous orbit — astir 22,000 miles supra the Earth wherever satellites lucifer the planet’s rotation — to harvest sunlight. It volition past usage infrared lasers to transmit that powerfulness to utility-scale star farms connected Earth, allowing them to nonstop powerfulness to the grid astir circular the clock. 

Overview has raised $20 cardinal to date, and portion of that wealth has gone toward an airborne objection of its powerfulness beaming technology. A airy craft transmitted powerfulness utilizing a laser to a crushed receiver implicit a region of 5 kilometers (3 miles).

Investors see the Aurelia Institute, Earthrise Ventures, Engine Ventures, EQT Foundation, Lowercarbon Capital, and Prime Movers Lab.

As abstraction motorboat costs person declined implicit the past decennary oregon so, space-based powerfulness has gone from axenic subject fabrication to thing person to reality. 

There are inactive respective hurdles to overcome: For one, it’s inactive importantly cheaper to deploy star panels present connected Earth than to nonstop them into space. And the quality to nonstop powerfulness wirelessly from orbit down to our planet’s aboveground is inactive successful its infancy.

Other companies are attempting the aforesaid feat. Aetherflux is besides pursuing a laser-based approach. Others similar Emrod and Orbital Composites/Virtus Solis are processing microwave-based powerfulness transmission, which sends vigor wirelessly utilizing a antithetic information of the electromagnetic spectrum than Aetherflux and Overview. 

Microwaves are little delicate to clouds and humidity than infrared lasers, which can’t transmit successful cloudy upwind since the suspended h2o droplets would sorb overmuch of the energy. But due to the fact that microwave-based systems can’t reuse existing star farms, they would person to physique their ain crushed stations. 

To support costs down, those crushed receivers would astir apt beryllium smaller, truthful the vigor beams would person to beryllium tighter and much powerful. Companies are processing ways to swiftly interrupt the beam to forestall collateral harm to birds and aircraft, but it’s inactive a concern.

Overview’s reuse of star farms would mitigate immoderate of those concerns, though it would inactive person to person the nationalist that vigor beams from abstraction are harmless and won’t stray disconnected target. (Remember SimCity 2000?) The institution volition besides person to guarantee its laser strategy is precise efficient, different the payment of collecting sunlight successful abstraction volition evaporate arsenic the vigor is converted to infrared airy and backmost again.

The startup says that successful 2028 it intends to motorboat a outer into debased Earth orbit — far beneath the 36,000 kilometers (22,000 miles) astatine which it yet intends to operate. If each goes arsenic planned, it’ll commencement sending megawatts’ worthy of powerfulness from geosynchronous orbit successful 2030.

If it sounds audacious, it is. Overview isn’t conscionable confronting immoderate promising but perchance unforgiving physics problems but volition besides beryllium battling grid-scale batteries, which are getting cheaper each year, and perchance atomic fusion. But capable radical judge it volition hap that specialty suppliers person started popping up. A sci-fi future, indeed.