I’m currently trying to display the daily and monthly power consumption using the “estimated input power” metric retrieved from my PSU (hx1200i). I was able to get this metric into Grafana using the liquidctl-exporter. Now I’m trying to translate this into the total consumed power (kwh) per hour/day and month.
I found this forum post post in which a user tried to do this. However, I used Prometheus, and so I can not use the syntax used there.
To get a plot of the KWH per hour, I now use the following syntax:
When I try to take the sum of this to get the total power consumption, I cannot find the correct syntax.
Gives me a
bad_data: 1:15: parse error: expected type range vector in call to function "sum_over_time", got instant vector error which makes sense. I therefore tried to convert my previous result into a range vector using:
But, I, however, get a
bad_data: 1:73: parse error: ranges only allowed for vector selectors.
Therefore, does anybody know how to display the total power consumption on the Grafana dashboard based on Prometheus Power sensor data?