So when the battery full and grid down and you cant turn on your oven what happens. Where does the solar kW go ?
The turning on of the oven part was to drain the battery a bit, as I needed to verify what was supposed to happen, happened, which it did, and I wanted to watch it happen. Once the battery was down to 90% I turned off all the extra loads including the oven to allow the battery to charge.
When the grid is down, the battery is full, and there isn't enough AC load the Victron system will do two things:
- It will reduce the power generated by the MPPT charge controllers - it did this, you can see this in the last picture above, the red and blue lines are the two strings directly connected to the Victron system.
- The Quattro will increase the AC frequency to 52Hz (this setting can be changed), most (not all though) solar inverters will then shut down at this frequency, the SolarEdge inverter that I have shuts down at 51.6Hz - you can also see that it shut down in the picture above.
Newer inverters can be set to gradually restrict their power, as the frequency rises above 50Hz they will reduce their output, the Victron can be set as required to control this.
![ESS-Frequencies.jpg](https://i.postimg.cc/fLqgbhV8/ESS-Frequencies.jpg)
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