The last few days have been a bit icky around here, with my house apparently proudly residing in the major city with the dirtiest air in the world. So, I needed a distraction…
It has also been quite hot, so I wondered how my energy usage was going. I have prometheus monitoring of my power draw, so now seemed as good a time as any to learn how to do some historical querying over the API. I ended up with a python script which can output things like this: “Yesterday had a maximum temperature of 38 and we used 28.36 kwh. The average for similar days is 25.56 kwh.”
The code is on github if it is of interest to others. I am sure I could push more of this processing down into the prometheus engine, but I couldn’t see how to do it today. Hints welcome!