Producing Space-Ready Solar Modules on a Large Scale

The solar cell and module manufacturer Meyer Burger and Solestial are working together with immediate effect. The cooperation is intended to advance space solar energy using ultra-thin, processed wafers, overcome Solestial's previous capacity limitations and enable significant scaling.

Solestial's core competence lies in the development of radiation-resistant solar cells and flexible modules that are optimised for long-term performance in the harsh conditions of space. By combining Meyer Burger's heterojunction technology with Solestial's metallisation processes and cosmic ray damage reduction technologies, solar cells are created that meet the efficiency and reliability requirements needed to operate in orbit.

Under the strategic partnership agreement, Meyer Burger will receive ultra-thin, radiation-hardened silicon wafers from Solestial, then apply its silicon heterojunction technology and send them back to Solestial's manufacturing facility in Tempe, Arizona, for metallisation, finishing and integration into flexible solar modules.

The volume of wafers processed by Meyer Burger will enable Solestial to deliver enough solar modules by mid-2025 to power hundreds of spacecraft per year with solar energy in space. Production is scheduled to start on 1 September this year.