If you have far to many PV panels (power) for the capacity of you Multiplus inverters or for the feed-in of your grid connection their is a simple solution to control that. In some cases it would be convenient to have more PV power installed then what your system can handle. PV panels produce less in the winter, so to compensate that more PV panels could be installed. But during the summer period they will produce to much. More then your inverters or the grid feed-in could handle. With the next script in combination with an shelly relay and power relay you can control or better you guard you equipment for any damages.
Disclaimer: Althought the Node-Red scripts have been tested by us not all situations are the same. You must be absolutely aware of what you doing to avoid dangerous situations or malfunction of your equipment.
