Rocket Lab releases IMM Apex solar cell with 31.5% efficiency for space applications

PUBT · 1d ago
Rocket Lab releases IMM Apex solar cell with 31.5% efficiency for space applications
  • Rocket Lab released IMM Apex, a next-generation inverted metamorphic solar cell for space, targeting higher efficiency and lower mass.
  • Beginning-of-life conversion efficiency set at 31.5%; cell mass reduced 40%, lifting specific power while retaining radiation hardness and temperature performance.
  • Design removes germanium substrates, cutting exposure to critical-mineral supply constraints and rising input costs in the space-power supply chain.
  • Mechanical and electrical drop-in replacement for heritage germanium-based cells, aiming to reduce customer retooling costs and integration risk.
  • Manufacturing process changes support multi-100-kilowatt production volumes, positioning the product for faster delivery into growing satellite demand.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Rocket Lab Corporation published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202609081620PRIMZONEFULLFEED9823180) on September 08, 2026, and is solely responsible for the information contained therein.