Hi Bankstownbloke,
Firstly thanks for the great platform, powerwall data is working really well with the integration service.
The ultimate goal for me is to have a real value of cost at any given time, that can be summed over weekly, monthly etc period of time, essentially to reflect my bill. Currently import / export does not consider that the battery is a factor in this so charging the battery is considered export and discharging the battery is import. A few things I have done so far
- I upload the powerwall lifetime import (site.energy_imported) and export (site.energy_exported) to v7 and v8, on the live graph these are irrelevant as they are an ever increasing number however on the summary I use difference to give me the correct daily total but cant do much more with it
- I have entered credit and debit tariffs for the “grid” (site.instant_power) extra data field and this does give me a daily cost however not including the daily connection fee and I cant seem to sum this cost in weekly, monthly views as it does not appear?
What I am considering however it to change “power consumption” to be the “home” - “powerwall” ( load.instant_power -battery.instant_power). Same effect I guess as it would be to set net flag to 1 and upload the real import and export values but as they are lifetime I’d have to do something to convert to a daily value.
This to my understanding would then give the inbuilt import / export values to be correct and any tariff calculations to also be correct. In a way I guess this is actually a valid indicator of the load shifting of consumption. Probably the only downside is app PVOutputpro etc will show only the load shifted consumption. I can however still put the house consumption into its owen extra data field.
I guess what I’m asking is it possible to have another Import / Export model that has consideration of the battery’s contribution?
Just figured I get your thoughts before I start to modify my data.
Thanks