Powering them is one of the greater engineering challenges that we had to deal with, because powering a cell phone under a tree canopy, any sort of solar power under a tree canopy, was an as-yet-unsolved problem, and that's this unique solar panel design that you see here, which in fact is built also from recycled byproducts of an industrial process.
Njihovo napajanje je jedna od većih inženjerskih izazova koje smo morali riješiti, s obzirom na to da je napajanje mobitela ispod krošnje, bilo kakva solarna energija ispod krošnje, bila nerješeni problem. Rješenje je ovaj jedinstveni dizajn solarne ploče, koji je također izrađen od recikliranih nusprodukata industrijskih procesa.