We had a power outage yesterday. The outage happened in the early evening while the system was discharging the Powerwalls in self powered mode. The Powerwalls dropped the loads for about 16 minutes and then came back on. I've seen others report Powerwalls taking a while to pick up the load but in most of those cases the Powerwalls were not in standby. Even with mostly Tesla only data, the Powerwalls did not cover a significant portion of the outage.
I've emailed energy support.
3 Powerwalls
Gateway 1
Whole house backup
PG&E
Sense = power monitoring device powered directly from the panel. Powerwall + solar is treated as solar on the Sense
Ting = plug-in monitor for detecting electrical faults that might cause fires
Ubiquiti = network equipment plugged in to small UPS
Laura = human that was in the house
Tesla App Log = what you can see from the app
Tesla Data Download = "download data" from app
Annoying that many time stamps have only minute resolution. Even more annoying is data download only has 5 minute resolution.
Time | Source | Description | Note |
7:13:45 PM | Sense | No solar (Powerwall) or loads | Is this the beginning? Was the Sense clock off? |
7:20:00 PM | Tesla Data Download | 0.7 kW Load, 0.7 kW from Powerwalls, 0 kw Grid | Had been discharging at around 1 kW |
7:22:00 PM | Ubiquiti | First wired device reported off network | |
7:23:00 PM | Ting | "Power Outage" | |
7:23:00 PM | Laura | house dark | |
7:24:00 PM | Ubiquiti | Switches and devices not on UPS start to disconnect from network | |
7:25:00 PM | Tesla Data Download | 0 kW Load, 0 kW Powerwalls, 0 kW Grid | |
7:30:00 PM | Tesla Data Download | 0 kW Load, 0 kW Powerwalls, 0 kW Grid | |
7:33:00 PM | PGE | Email about the outage | |
7:33:00 PM | Tesla App Log | Power Outage | |
7:35:00 PM | Tesla Data Download | 1.3 kW load, 1.3 kW Powerwalls, 0 kW Grid | |
7:38:00 PM | Laura | Lights back on | |
7:39:00 PM | Sense | Solar and loads are on | Powerwall came back? |
7:39:00 PM | Ting | Power restored | |
7:39:00 PM | Ting | "Generator on" | How does the Ting figure this out? |
7:39:00 PM | Ubiquiti | First set of network devices reconnect to the network | |
7:40:00 PM | Ubiquiti | More devices connect, some are disconnecting | |
7:42:00 PM | Sense | No solar (Powerwall) or loads | No other device noted missing power |
7:42:54 PM | Sense | Solar and loads | Powewall came back again? |
8:05:00 PM | Tesla App Log | Grid reported as returning | |
8:05:50 PM | Sense | No solar (Powerwall) but loads active | Grid returned? Powerwall stops momentarily? |
8:05:51 PM | Sense | Solar and loads are on | Powerwall resumes offsetting load |
8:06:00 PM | Ting | "Generator off" | |