If you run 150 panels in full sun in theory you should get 12 amps. Realistically and depending on your system voltage losses (mainly wire size)you should get 9 or 10 amps. Multiply by 5 good hours of sun yields about 35 to 50 ah. So, if you have 2 sixes for a total ah rating of about 200 with 100 available and you pull 40 or 50 you should be ok but any short days will put you in crisis mode. These are just my guesstimates as I'm new to solar and have 3 back up gen charging sources. if you depend on your converter for back up charging check the voltage as some only do 13.6 and will take forever to charge.
If that is what your converter does it will be better than nothing if you do have to use a generator but again, it will be slow.