The Bill at the end of the year.
this post was submitted on 16 Nov 2023
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Shelly Plugs, although I haven't yet set up any local data gathering, just using their cloud stuff.
Several locations.
- bunch of metering smart plugs flashed with Tasmota, feeding into Home Assistant (power at the wall)
- UPS being polled by LibreNMS (difference in load Vs wall shows the UPS consumption)
- metering PDU polled by LibreNMS shows the server load
- PMBus PSUs in the servers report their own power consumption to the BMC
And after all this, I do... Nothing with this data.
:) But you have a system in place should you need it. And I say All Data can be useful if filtered correctly.
smart plugs for devices and shelly CT clamps for home/circuits. all integrated into home assistant.
I just use a Tapo Smart Plug, don’t know how accurate it is but it gives me an idea, my unRAID server runs idle at about 70w (with relevant drives spun down) not the greatest I know, in the iOS app you can input your local cost per unit and it will give you an estimate on daily/weekly/monthly running cost
I have a esp32 gizmo connected to my meter. It has a built in web server displaying live data, and also pushing MQTT data to Home Assistant.
I personally use a combination of....
Per Circuit Monitoring: https://static.xtremeownage.com/blog/2023/home-solar-project-part-3-monitoring/
Sonoff S31s for individual devices: https://static.xtremeownage.com/blog/2023/sonoff-s31-low-cost-energy-monitoring/
A few HS300 Power Strips: https://static.xtremeownage.com/blog/2022/kasa-powerstrip-as-pdu/