[eMerzh]

Homeassistant + Power calc (https://github.com/bramstroker/homeassistant-powercalc) really does wonder here,

you can "simulate" power of fairly stable appliances.

Then you chart that in a nice Sankey chart or in standard charts and enjoy

[sifttio]

This is a good solution, but I'm having trouble estimating the power draw from charging all my fleshlights daily.