Things like HomePlug GreenPHY are used for smart meters. (Also electric car charging for some inexplicable reason) I don't know how they're typically deployed b

Things like HomePlug GreenPHY are used for smart meters. (Also electric car charging for some inexplicable reason) I don't know how they're typically deployed but I'd think at least a few miles? It wouldn't make much sense to use if you'd have to have the receiver really close - just use wireless.