Outside of his little business on the side of the road in a small town in Loiza, Puerto Rico, Santiago Quiñones adjusts a small solar panel.
It's charging a floodlight, to illuminate the cramped space at night. He takes it down and demonstrates how it works. "You can't see right now because it's daylight, but it's already charged," he says in Spanish.
Like nearly everyone else in Puerto Rico, 73-year-old Quiñones has lost access to the power grid. His house was also badly damaged by floodwaters when Hurricane Maria swept over the island.