Starting generator when grid failed, but only if battery is below x% and stopping when battery reaches y%
I have watched all the videos dealing with generator connections and setup, but I could not find a clear answer to my question.
With a grid-tied system, is it possible to set up the inverter to only start the generator once the batteries have dropped to, e.g. 40% if the grid had failed? This seems likely, but will the inverter stop the generator when the grid power returns? Or will the inverter keep the generator on until the batteries are full?
If this is possible, it would obviously only work if the generator is connected to the generator port of the inverter.
Suppose the generator and grid are connected to the grid port of the inverter (behind the ATS of the generator). Would the following settings on the inverter be possible as an alternative: Generator ATS set to manual so that it doesn't start the generator when the grid fails? The inverter draws power from batteries until batteries are at, say, 35%. When the batteries reach 35%, the inverter starts the generator until the batteries get, e.g. 45%, when it turns off the generator. I realise that with this setup, the inverter would be unable to stop the generator when the grid returns because it doesn't know when the grid returns because the generator on the grid port is supplying it.)
Any other solutions or suggestions for using a generator as a backup if the batteries drop below a pre-set SOC?
Thank you.
I cant answer your question with reference to settings but all I would say is that I would be extremely cautious connecting both grid and Generator to grid port. The chance of back-feeding grid power to the generator seems high and this could do serious damage to the AVR on the generator at the very least and possibly much more. Please be very careful