// Wireless Power · Anywhere in Space
Laser Power Beaming
Satellite to Satellite
Theia Labs develops laser-based wireless power transfer systems for spacecraft. A dedicated power-beaming satellite delivers energy to CubeSats and SmallSats in Low Earth Orbit — extending mission lifetimes, reducing battery mass, and enabling operations even during eclipse. Future phases will extend the architecture to deliver power to rovers and landers on the lunar surface.
Theia Labs' architecture scales from a single satellite-to-satellite link in Low Earth Orbit, to a constellation serving multiple CubeSats, and ultimately to beaming power down to the lunar surface.
A dedicated power-beaming satellite delivers laser energy directly to a single customer satellite in Low Earth Orbit. First prototype under development.
Scaling to a one-to-many architecture — a single power satellite serves multiple CubeSats and SmallSats, extending mission life and enabling power-hungry payloads.
Beaming energy from lunar-orbiting satellites to rovers and landers — enabling robotic missions to survive the 14-day lunar night and operate in permanently shadowed regions.
Theia Labs was founded in 2024 to solve one of space exploration's most persistent challenges: reliable power when sunlight is not available.
The company grew out of an 18-month project during the SpaceTech Master's program at TU Graz, where the founding team designed a wireless power system to help robotic missions survive the 14-day lunar night.
What began as a lunar survival concept has evolved into a broader mission: building scalable, laser-based WPT solutions for both space and terrestrial applications. After presenting the concept at ESA ESTEC in 2023 and joining ESA BIC Austria in 2025, Theia Labs is now developing its first prototype to meet the growing demand for sustainable power in space missions.
This site hosts our engineering toolset — efficiency models, thermal analysis, beam pointing, breadboard design, and optical calculators used to size, validate, and iterate on WPT subsystems. Sign up is free; an administrator grants access to specific modules.