NASA Teams Up With Solar Firms to Power Future Space Missions

Two US solar technology firms are working with NASA to improve space-based solar power. Solestial and Ascent Solar Technologies will test their advanced solar modules under extreme conditions. The research aims to support longer missions and more efficient energy systems in orbit and beyond. Solestial has signed a Space Act Agreement with NASA’s Glenn Research Center. The company will supply ultrathin silicon solar arrays for testing in the Plasma Interaction Facility. NASA will study how the modules’ electrical performance changes over time and share the findings.

The firm’s silicon solar cells are designed to repair radiation damage when exposed to sunlight at temperatures as low as 65°C. This self-healing feature could extend their lifespan in harsh space environments.

Meanwhile, Ascent Solar Technologies, based in Thornton, Colorado, has developed thin-film solar modules with a power density of 1,960 W/kg. The lightweight design makes them ideal for spacecraft, where reducing weight is critical. CEO Paul Warley highlighted their ability to withstand extreme radiation, allowing for deeper and longer space missions.

The company has already provided test modules to a leading aerospace firm for power generation in cislunar space. Both collaborations focus on advancing silicon and perovskite solar cells for orbit and lunar applications. The partnerships will help refine solar technology for future space exploration. NASA’s testing will provide key data on durability and efficiency in extreme conditions. These advancements could enable more reliable power systems for missions to the Moon and beyond.