York Space Systems has entered into a definitive agreement to acquire Solestial, a provider of space solar technology.
The acquisition secures a critical space solar capability within York’s supply chain through U.S.-based manufacturing, strengthening control over a key subsystem while reducing reliance on Chinese-controlled materials and manufacturing. Upon closing, Solestial will operate as a wholly owned subsidiary of York, continuing to serve customers across commercial, civil and national security markets.
“York has consistently invested in U.S.-based manufacturing as a core part of how we deliver for our customers,” said York CEO Dirk Wallinger in a statement. “This acquisition builds on that approach, strengthening our supply chain by investing in a proven U.S. company, supporting the domestic industrial base, and reducing reliance on foreign sources for critical materials and manufacturing.”
Solestial has developed a differentiated approach to space solar, producing ultrathin, radiation-hardened silicon solar cells and modules engineered specifically for the space environment. Solestial is one of the only space solar providers with self-healing silicon technology proven on orbit, enabling performance while maintaining a path to high-volume manufacturing.
Headquartered in Tempe, Arizona, Solestial has established a U.S. manufacturing footprint and is advancing toward a fully domestic supply chain. With approximately 95 percent of its supply chain already based in the U.S. and a clear path to full domestic production, the company is positioned to scale manufacturing in support of growing demand. Solestial recently expanded its production capabilities through the acquisition of advanced high-volume solar manufacturing equipment, enabling wafer-to-module manufacturing in the U.S.
