Solar panel vs generator?

It really depends on your rig and your life/camping style. Our coach is an energy hog. We have 400 watts of solar and a 450 amp-hour battery bank. Even when we are conservative, on most days we run our generator a little each day. Generally we run it about 1/2 hour in the morning while making breakfast and coffee and 1/2 hour in the evening at dinner time. We are able to run the coffee maker and the microwave and give the batteries a little boost at the same time. In our case the solar does not negate the need for a generator, but does greatly reduce generator run time. If you ever want to run a microwave or an A/C, you will need a generator. And, unfortunately, the sun does not shine every day.