[big T]

^ interesting points re: copper. Anecdotally, I'm seeing more and more public light poles with small individual solar panels. I hadn't thought about the savings on wiring (both material and installation with digging etc.), but I still have to wonder about the overall efficiency of having one solar panel + battery for each light. I get that wire is getting expensive, but I don't see how it beats a battery which presumably contains lithium and a bunch of other rare metals. Still smells like greenwashing to me.