$ASTI Ascent’s Superlight solar modules can be seamlessly integrated into drones, UAVs, and high-altitude airships, allowing flight time to increase by 30-50%. This offers an attractive trade-off over additional batteries or engines built into the aircraft, which can add significant weight to the unit.

Can Power Propulsion Systems, Payloads, or Ground Control Systems
Seamless Integration with Minimal Impact to Airframe Weight
Environmentally Sealed
Monolithically Integrated Large-Area Modules
Complete Customized Solutions at 270V and Greater
Ready for Large Volume Custom Production

https://www.ascentsolar.com/aerospace.html