Space solar power system

Space solar power system

Technology to transmit solar energy gathered in outer space to the earth by means of lasers

Current research

Space solar power system is a technology that transmits energy obtained from sunlight at geostationary satellite 36,000 km above the Earth to the ground by laser light day and night.

NTT aims to create clean and environmentally friendly energy.
To utilize solar energy, we will combine technologies to efficiently convert sunlight into lasers in geosynchronous satellite orbits, to transmit beams to the ground without spreading and fluctuations caused by diffraction and atmospheric turbulence, and to efficiently convert high-intensity beams into electric power.

In addition to energy transmission from space, it is expected to be used as a power distribution system for mobile devices such as drones and automobiles, a power distribution system using microgrids, and power supply for remote islands and evacuation centers in the event of a disaster.


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Novel Challenges

NTT Space Environment and Energy Laboratories are looking for researchers and engineers from several fields to help us find new solutions to pressing worldwide issues.