Heliofold's P-type HJT solar cell combines a p-type silicon structure with high conversion efficiency, backed by metallization engineered to hold up under the radiation, thermal cycling, and vacuum conditions of space.

This cell platform is built for spacecraft power stacks where every watt-per-kilogram matters, pairing its p-type architecture with the bifacial, flexible-encapsulation design that supports lightweight, deployable array concepts.

Its low-temperature cell structure rules out standard soldering. Interconnection requires specialized welding methods built for HJT — a key consideration for any integrator planning their assembly process around this platform.