Caelux®
Renewable Energy Semiconductor ManufacturingCalifornia, United States51-200 Employees
Caelux is a mid-sized renewable energy semiconductor company headquartered in Baldwin Park, California. It develops perovskite-related technologies intended to enhance crystalline silicon photovoltaic modules. Its flagship product, Caelux One, integrates with existing PV module manufacturing lines to boost performance and reduce installed costs. Its customers are solar-module manufacturers seeking higher efficiency and lower costs for deployed systems. In April 2026, Caelux announced a five-year collaboration with Solx to develop 3 gigawatts of high-performance hybrid tandem modules that combine Caelux's technology with Solx's offerings.