Rocket Lab USA Inc.Rocket Lab announces production release of its new IMM Apex solar cell with higher efficiency, lighter weight, and no germanium, addressing material costs and supply constraints.

Rocket Lab announced the production release of its Inverted Metamorphic (IMM) Apex solar cell, a next-generation product for space applications that achieves 31.5% solar conversion efficiency, weighs 40% less, and eliminates the need for germanium substrates, a material used in conventional multi-junction solar cells for three decades. Company President Brad Clevenger said the cell addresses rising material costs and supply chain constraints while offering faster production times and proven reliability. Shares rose 5% in premarket trading following the announcement.
Rocket Lab USA Inc.Rocket Lab announces production release of its new IMM Apex solar cell with higher efficiency, lighter weight, and no germanium, addressing material costs and supply constraints.