p00 Maja
Complete
End-to-end power transmission verified.
StatusOperationalDevelopment
Space-based solar power
Power from orbit.Delivered safely.
(k)eisei is building the orbital power network for Earth.
Harvesting sunlight in space.
Transmitting power by NIR laser.
Delivering energy where it's needed.
Development milestones
p01
In progress
100 W at 100 m.
p02
—
full end-to-end DC-DC chain.
System at a glance
Space segment
Solar power satellite (LEO)
Transmission
NIR laser, closed-loop pointing
Ground segment
Adaptive receive array
Network
Multiple nodes, power routing
Operations
Scheduled / multi-node coverage
Scaling
Constellation scaling
LEO network concept
Handover from current satellite to next node during orbital pass.
Active linkHandover linkMotionSafety by design
Tracking & safety interlocks
Multi-layer tracking, exclusion zones, and autonomous interlocks ensure people and aircraft are protected.
Fail-safe operation
Beam termination, re-point, and safe-state logic respond in milliseconds.
Technology roadmap
TRL 4
Component validation
TRL 5
Subsystem validation
TRL 6
System demonstration
TRL 7+
Operational readiness
Path to TRL 7+ via dynamic LEO operation through rigorous testing, incremental risk reduction, and real-world demonstration.
Roadmap details