Hi
My house is 100% electric, as my heating is via an Air Source Heat Pump (ASHP). I've focused my energy (Sorry 
) to date on tracking usage against events, although HE is not aware of all devices within my home, obviously.
I have installed an Efergy Engage Elite energy monitor and linked to HE (See [Release] Efergy Engage (Connect) from @Fuzzyligic & @tonesto7 ) and I use a Heatmiser Neo thermostat for my ASHP control and linked to HE (See [Release] Heatmiser Neostat / Neoplug Integration from @cjcharles )
I then set-up Influxdb and Grafana on a Raspberry Pi 400 and used the InfluxDB Logger App (See https://github.com/HubitatCommunity/InfluxDB-Logger by @codesaur and @tooluser to populate the InfluxDB.
There is some great information here: Share Your Data Logging and Visualization Implementations - #197 by HENewbie
