Hi am a new EmonPi user, my system has been running for a couple of weeks.

I have 2 CT Sensors, one is measuring the total usage for my house and the other is measuring the Heat Pump use.

I want to calculate 2 other values that I can graph but I cant work out how to do it.

- I want to try and see what the maximum current I use is, I know this isn’t really available but If I assume all my usage is resistive I can get an idea by just dividing the use by the voltage (I do have an AC transformer connected to my Emonpi)
- I would like another use which is the total house use minus the heat pump use (difference between the 2 CT sensors)

Any help or links you can give on calculations would be great I am struggling with knowing where to look and where I should do the calculations