adding grid tied

I have an SHP3 (as a subpanel) plus DPUX/batteries/PV as an off grid backup system. I want to add a parallel grid tied PV system so that I can bank summertime solar for use in the winter. I do not want to add a second battery system so a simple solar inverter (fronius primo 10k for example) might suffice. I am not an electrician and I'm not sure if the SHP3 and a solar inverter connected to the main panel will play nice together.

Has anybody added grid tied solar to shp3?