I am sure this is a setup problem… Any help appreciated!
I am sure most of my problem is Home Assistant related - so have posted the same info on the HA forum… but #3 below I think is related to the IotaWatt setup - so please bear with me to get to #3
I have 3 phase power, with solar on each phase. I face the same issue on all 3 phases, so my Graphana graphs only show one phase to make things a bit clearer.
- My night rate import Wh correctly shows import from 0000-0600hrs. But does not record any import from 2100-0000hrs. My day / night change over looks correct, and there should be some import happening.
- My day rate import Wh correctly shows import from 0600 until my solar kicks in. But then as the sun goes down, no import is recorded between around 1900 - 2100hrs (there should be import happening).
The top graph shows un-split import/export - this looks correct - it is just the day / night recordings which are wrong, despite the day / night change over looking correct (second image). So I think this may be a HA issue? How do I debug / investigate this?
- The 4th graph shows cumulative export Wh. At around 1900hrs this starts decreasing. It is Export - so should never decrease - it should stop when there is no solar. This looks to be a raw data issue?
The HA ‘Energy Usage’ graph appears wrong - because of the data issues above. But it also shows self consumed solar after 1900 - despite the graph below showing (correctly) there is no solar to self consume… (the solar production comes via ModBus from the three inverters)
Not sure where to start… My Phase 1 Import comes from an IotaWatt (Watts = (Phase_1) max 0). My Phase 1 export comes from Watts = ((Phase_1) min 0) abs. I guess the Wh is calculated as part of the IotaWatt integration.