The opposite. Absent a Powerwall (not present or not discharging), the solar generation will always go to the house and then to the grid.
I would be extremely surprised that a Tesla server has any direct control over the behavior of the Powerwall/Gateway as this would create issues when either there is an issue with the server farm, the house's electrical grid, or the network communication from the house to the servers. The Powerwalls/Gateways are operating independently, but they will take updates from those servers (Stormwatch, VPP, user config updates, etc.) and send back data (current flows, voltages, frequencies, state of charge, etc.)
I think we are in agreement here. I did not intend to imply that they operated directly from the server but that they received their instructions from the server. I meant that the apps were not directly communicating with the GW. Therefore there COULD BE two separate server versions based on what app version you were using. This would especially be true with the new features in V4 that don't exist in the V3 app.
Off peak it should never discharge as you would loose 10% in any scenario to follow. Partial peak I have seen them discharge, but usually only when the AI thinks it will have enough charge to ride out the peak periods before a TOU shift like an upcoming weekend with a larger off peak period.
This reason is totally illogical. For most situations, discharging during Off-Peak has no upside for the user. It's a waste of battery cycles. Sure, the PW will get full earlier in the Off-Peak, but it's better to just go into Standby sooner and let the surplus go to the grid at that time.
The grid draw amounts are typically small and brief so I’m unlikely to catch this occurrence but will keep an eye out
Solar going to the house is beneficial if you don't have enough battery energy to make it all the way through the Peak period. However, if you have full net metering without NBCs, then it basically works out the same because you run out earlier, but you got credit for the Peak export.
In theory, yes. However, it should already send the solar to the grid during Peak.
It isn't much of an economic benefit if you are a net producer. PG&E only compensates you at ~$0.03/kWh for excess production. But you have about a 10% loss when using the Powerwalls. I would rather forfeit the $0.03/kWh and reduce cycles on the Powerwalls.
We should not be reliant on the Tesla app being about to "work out the correct behavior" based on incomplete pricing and usage data. There is a huge amount variation on the base TOU plans both within a single utility and across the thousands of utilities world wide. The nuances of the NEM plans for minimum daily charges (MDCs), non-bypassable charges (NBCs), how the export vs import is compensated for, etc. And then you add on top of this if your system will be a net consumer vs a net generator on a monthly basis for some and a yearly basis for others. This is a sisyphian task that will never be complete due to constantly changing landscape.
teslamotorsclub.com
I downloaded the latest Andriod app (4.2.3) yesterday and it finally supports editing my utility plan. My peak buy rate is $0.16/kwh, but sell rate is $0.04/kwh for all hours. With this setting, my PW now behaves like the old Balanced mode -- no export during peak unless PW is full.
I just checked after reading your message and confirmed our Powerwalls just disappeared and are no longer visible in 3.x. We did have a brief outage earlier today and I noticed we are on 21.39.1. I can't recall what previous firmware we were on.
...was hoping it was just a little quirky today w- the storms passing thru.
