Yesterday i had a very strange cost calculation of energy data. All the sudden my energy cost was ~1500 EUR, see screenshots.
Even though some of the sensors have a value ‘0’ , they both apparently incurred cost.
Strangely , not the exact same amount for 0 and -0 , see screenshot)
( Electricity Meter Energy production (tarif 2) and Electricity Meter Energy consumption (tarif 2))
At first glance this seems to be a bug somewhere.
There were 2 unique situations yesterday:
- there was a negative price for a few hours (i use nordpool sensor for dynamic cost)
- my energy meter measurements did not come through, i had to replug it in the morning, i think there was an issue with my p1 splitter. (i also use DSMR reader , reading the exact same data, no issues there)
I did a few queries in the SQLite database and i cannot find anything strange in both the dynamic prices, and the energy consumption statistics of yesterday… Apart from missing metrics untill 10:00 when i replugged my p1 sensor.
I suspect the negative prices have something to do with this, corrupting the calculation in some way.
Energy table of yesterday, issue is clear i guess:
I can supply raw data from my sqlite database if needed.
Will post remaining screenshots in first reply (i cannot post more than 1 screenshot in this post since i am a new user.