I have a raspberry PI that pulls data from my Delta inverters over RS484, power and energy data is then uploaded to the two systems in PVoutput via the API using a python script. This system works well and I’ve been using this method for alost a year.
I recently had a ABB B23 meter installed and I’m pulling data from the meter over modbus such as import/export/net.
My question is - can I upload raw import/export/net data and PVoutput will do the math for me OR do I have to do the math to work out consumption first then upload it via the API.
I think If I need to do the math myself the formula would be:
consumption = (generation - export) + import
My setup looks like this but note I have 3 phase power so its simplified.