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tbnobody / OpenDTU

Software for ESP32 to talk to Hoymiles/TSUN/Solenso Inverters
GNU General Public License v2.0
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[Request] fail-safe limit option #2195

Open rradkov opened 1 month ago

rradkov commented 1 month ago

Is your feature request related to a problem? Please describe.

Well for the past few weeks I had problem with DTU connecting the Inverter early in the morning. This caused some export to the grid which is not good. After power reset everything is back to normal.

Describe the solution you'd like

So I was thinking if it is possible to have some fail-safe option, that late evening when the production is really small like <50W DTU to set fail-safe choosable limit to the Inverter. This way if DTU or zero export script is not working properly there will be no grid export energy.

Another great feature that can be added is mail notification client. If the invert is not communicating with the DTU for X time, to be send a email for notification.

Describe alternatives you've considered

No response

Additional context

No response

stefan123t commented 1 month ago

@rradkov you can always set a persistent limit to your intended max 50W, as this will be stored in the inverters EEPROM this will be active the next morning. If you want to override this persistent limit you send a temporary limit from your zero export.

Please double check the Dynamic Power Limiter (DPL) function in the daughter project OpenDTU-OnBattery. I have described a possible PM+DPL setup with a Shelly Pro3EM as Power Meter (PM) here in issue #272.