http://e26whn2524322mkxb3cbyk27ev2ihhq2biz35hty7gzgsyrwrygq27yd.onion/posts/blog/house-stuff/capturing-energy-usage-info-with-tapo-kasa-and-influxdb.html
A key part of that monitoring is the use of Smart Sockets, these allow me to record usage of particular appliances (the aim is that, eventually, most things will be monitored via one of these sockets). When I wrote the original post, I was using TP-Link Kasa KP115 Smart Sockets, but TP-Link have since discontinued the Kasa range and moved their focus to the Tapo family (which even have a different app.... sigh).