Hi Mr. Wiz,
Thank you for continuing to document the results from your system.
What the solar is definitely doing for you is providing for all parasitic loads while doing some "top up" charging. What it may do, if sun conditions are ideal, is run the fridge for free. By the way do you have any idea of the duty cycle on the fridge? (i.e. how many hours a day the compressor runs?)
I do not know if the current controller can be triggered to an equalize mode--but it might be a way to get more amps out of the panels. How many volts can the fridge control board tolerate? What is the maximum voltage input for the inverter?
How long would the generator have to run to put in the 25 amp-hours that the solar provided yesterday?