All,
For the more serious energy monitors, here is a driver to interface with the TED Pro Home energy monitor by The Energy Detective
The driver supports the TED Pro Home by itself and also up to 4 additional TED Spyder devices attached to a TED Pro Home.
You can find to code and installation instructions here:
https://github.com/danTapps/Hubitat/tree/master/Drivers/TED%20Pro%20Home
It is great to monitor individual circuits and makes it easy to create rules to let the house now that you shouldn't run the dishwasher, dryer, washing machine, microwave, coffee maker and all 4 plates of an electric stove at once....