We have paid a lot of attention to our consumption habits over our years of cruising and we went with 2 @ 385w LG panels as we did not want to increase the size on the back arch. We still use the generator for the water maker, and split our cooking between the propane stove and an induction hob. 

The other big gain for us was installing 400AH of lithium batteries to essentially triple the amount of usable storage. 

We also installed a 3000watt inverter which can support our modest 230v needs. That includes routinely running the washing machine, or the induction hob, and on several occasions we have run an ac unit for several hours in the evening or the dishwasher. We only turn the inverter on when we need it to save on the residual draw.

The key is to analyse your needs/habits and build your system out to best meet that. At anchor we consume about 130ah per day (3200watts)

Best regards, Daniel and Lori Carlson on sv BeBe, sm #387