I would greatly appreciate it if anybody has the answer to a bit of knotty problem I am trying to sort.
SitRep. Had 1x Powerwall + 1x Gateway 1 + 1x solar array on a single phase UK electricity supply for about 2 years. All working fine.
Have recently upgraded to 2-phase grid supply with our DNO (Northern Powergrid). We are very rural, they do not support full three phase supply up here in rural Northumberland. Upgrade done to accommodate 2x Air Source Heat Pumps which will shortly replace our oil boiler.
Gateway 1 now upgraded to Gateway 2 Config is now split as follows.
The L1 phase has 1x 5kWp solar array + 1x PW2 + 1x zappi + core domestic loads, which are designated to be supported during power outages by the Powerwall on the L1 phase. In near future 1x ASHP will be added to this phase.
The L2 phase has 1x 5kWp solar array + 1x PW2 + non-core domestic loads, which are not designated to be supported during power outages by any Powerwall. In near future 1x ASHP will be added to this phase.
Both phases are controlled by the one, newly installed, Tesla Gateway 2 unit. The incoming grid supply and solar production are all being highly accurately recorded by the SMETS1 polyphase meter on the grid connection and the SolarEdge app recording inverter production. That is to say, the system is functioning entirely as expected. I'm generally happy with it.
The one thing I would like to be able to achieve is to individually monitor the SOC of each of the Powerwall batteries. The Tesla app simply aggregates total Power Flow and total SOC across both phases. It is doing this entirely accurately. However, I would like to know individually what energy each of the two PWs has stored at any given time, so that I (or a home automation system) can intelligently connect/disconnect loads to either the L1 or L2 phases, depending on the SOC of the specific PW on that specific phase.
Does anybody know a way of reliably doing this in the Tesla app? Or by some other means? Any advice gratefully received. Thanks in advance.
SitRep. Had 1x Powerwall + 1x Gateway 1 + 1x solar array on a single phase UK electricity supply for about 2 years. All working fine.
Have recently upgraded to 2-phase grid supply with our DNO (Northern Powergrid). We are very rural, they do not support full three phase supply up here in rural Northumberland. Upgrade done to accommodate 2x Air Source Heat Pumps which will shortly replace our oil boiler.
Gateway 1 now upgraded to Gateway 2 Config is now split as follows.
The L1 phase has 1x 5kWp solar array + 1x PW2 + 1x zappi + core domestic loads, which are designated to be supported during power outages by the Powerwall on the L1 phase. In near future 1x ASHP will be added to this phase.
The L2 phase has 1x 5kWp solar array + 1x PW2 + non-core domestic loads, which are not designated to be supported during power outages by any Powerwall. In near future 1x ASHP will be added to this phase.
Both phases are controlled by the one, newly installed, Tesla Gateway 2 unit. The incoming grid supply and solar production are all being highly accurately recorded by the SMETS1 polyphase meter on the grid connection and the SolarEdge app recording inverter production. That is to say, the system is functioning entirely as expected. I'm generally happy with it.
The one thing I would like to be able to achieve is to individually monitor the SOC of each of the Powerwall batteries. The Tesla app simply aggregates total Power Flow and total SOC across both phases. It is doing this entirely accurately. However, I would like to know individually what energy each of the two PWs has stored at any given time, so that I (or a home automation system) can intelligently connect/disconnect loads to either the L1 or L2 phases, depending on the SOC of the specific PW on that specific phase.
Does anybody know a way of reliably doing this in the Tesla app? Or by some other means? Any advice gratefully received. Thanks in advance.