Portable balloon-integrated emergency PV power generation at low altitude in mid-to-high latitudes

https://www.pv-magazine.com/2024/11/21/balloon-integrated-pv-system-for-emergency-power-needs-at-low-altitude/

"components: customized balloon, 19%-efficient thin-film cadmium telluride solar cells, exhaust valve, control, storage modules, fixed ropes, cord reel, upper hemisphere, lower arc surface... significantly reduces shading... utilized during high solar radiation months... helium/ air filled balloon... transparent upper hemisphere harvests solar in all directions, light-concentrating refraction... lower arc surface reduces thin-film solar cell installation area without affecting effective light harvesting... environmental benefits"