True. Would gravity storage device powered be more accurate?
I think it's a very elegant solution. Imagine an entire village lighted like this. If you can remember from history classes, or classic literature, there used to be lamp lighters that walked the cities turning on and lighting the gas street lamps each night, and turning them off each morning. Give a guy the job of pulling all the village lamps on each evening. Make 8 circuits each night from 6 to 9:30 PM and let them all shut down by 10 PM. No need to get up early in the morning to turn them off. And if early morning vendors need one, they can pull the rope themselves for whereever they set up.