Quick question before I order… does anyone know how well they work with solar power systems? The power draw from the main supply line can be negative if my panels are producing more than I’m consuming. For $10 a piece I was thinking about ordering two: one for the main line coming in to the house, and one for the line coming from my solar inverter. Problem is I’d have to do some math to figure out my actual power draw, or write/modify a smart app or device handler to do that for me, I suppose. Has anyone tried a setup like this?