Hoping this topic is okay for this forum. If not, mods, please move to Off Topic. I've been looking at the Time of Use rates here in NC and they could end up saving me some money, but I'm not sure because I'm not exactly sure how much of my energy I'm using during peak hours. I'd like to put together a whole-home power monitoring system to graph the energy usage throughout the day and ideally be able to plug in the Kwh values for various times and have it tell me what my bill would be with those values. The only semi-mainstream product I've found is The Energy Detective. I've also found some more that require a bit of tweaking to get them to work. At first I think I'd like to just monitor the mains coming into the house (2 x 200A service) and then maybe later branch out to monitoring some of the sub-loads to get a better idea of what is actually using power at certain times. I figured folks on this forum have probably dabbled in this, especially those who have Solar at home. Does anyone have suggestions? I don't mind tweaking, scripting, or programming to get it to work, but I'd rather have something that gets me most of the way out of the box with enough programability to be able to extend it if I need to. Thoughts?