ispace Selected by JAXA for Lunar Solar Power Tower Conceptual Design

On 2026-10-22, ispace announced that JAXA selected it for conceptual design work on a lunar solar power tower. The company is listed as a contractor for JAXA under a competitive solicitation.

The announcement is dated 2026-10-22, and ispace is selected by JAXA as a contractor for JAXA.

The effort is tied to a JAXA competitive proposal solicitation for conceptual design of a lunar solar power tower, identified as Parts A-B.

The design work will establish system requirements, specifications, and project plans.

The tower concept is intended to support activities in the lunar south pole region.

For lunar exploration activities, the stated power-supply scale is on the order of tens of kW by the early 2030s.

JAXA's power supply system concept uses solar arrays with a tower structure.

ispace's scope includes conceptual design for the tower and power distribution system, along with requirements, specifications, lander interfaces, and future development plans.

ispace has partner companies, and its business development covers lunar surface and cislunar space infrastructure.

A stable power supply is critical for sustained operations on the lunar surface, and this project helps define power infrastructure for that purpose.

The lunar south pole has a consistently low angle of incidence of sunlight, and the stated tens of kW scale by the early 2030s is relevant to tracking lunar surface and cislunar space infrastructure.

ispace is making arrangements to finalize the contract with JAXA.

JAXA will further develop the design approach for the next fiscal year and beyond.