Beaming solar energy from space gets a step closer

Is beaming solar power from space a good idea?

Beaming solar power from space is an elegant solution that has moved one step closer to realization due to the generosity and foresight of the Brens," says Caltech President Thomas F. Rosenbaum.

Can space solar power beam power to Earth?

A space solar power prototype that was launched into orbit in January is operational and has demonstrated its ability to wirelessly transmit power in space and to beam detectable power to Earth for the first time.

How does space-based power beaming work?

Space-based power beaming essentially works like our space-based telecommunications systems except for the fact that it beams usable energy instead of data. The idea is to use huge solar arrays parked in space to collect and beam solar energy down to remote ground stations on Earth via focused microwaves.

How does space solar power work?

Here’s how it works. A space solar power prototype has demonstrated its ability to wirelessly beam power through space and direct a detectable amount of energy toward Earth for the first time. The experiment proves the viability of tapping into a near-limitless supply of power in the form of energy from the sun from space.

Can a space solar power beaming system help meet America's net-zero goals?

While development of a space solar power beaming system will require a lot of work to get from today’s concepts to tomorrow’s demonstration mission, the technology holds tremendous returns for domestic industrial advancement, space sector expansion and abundant clean energy that can help us meet America’s net-zero goals.

Could space-based solar power beaming move us past fossil fuels?

Once demonstrated, space-based power beaming could become the energy source that moves us past fossil fuels in a way that is equitable, evolvable, scalable and distributable. Space-based solar power beaming could deliver energy that is cheaper, cleaner and more accessible than many alternatives.