I would go with solar
over a generator
. Solar a panel smaller than a card table vs gas, oil, genarator and noise.
Assuming your fridge
will run off of propane
(typical) or is a 12 volt compressor type. Even if you solar panel
can't "keep up" 100% with your power use you will run out of water before electricity if you gain 75% of your daily power usage from solar.
Having a genarator won't generally save you money on your site.
Most parks have electric hook up with amenities that go up in price from there. Water and sewer hook up on site, or heavy duty (50 amp) electric service for big RV's with two AC units cost more. So even the most basic site will generally have electric hook up.
Some parks have inexpensive "rustic" area or you might camp in the boondocks in those cases you can do everything you need
off of battery
. You give up air conditioning
, and need to limit your use of things that use electricity to create heat. Replace some of your light
bulbs with energy efficient LED bulbs as has been mentioned.
Need an inverter to run AC appliances off of battery
and heating appliances draw a lot of power. Toaster, coffee pot if left on, space heater etc. so you want to avoid those on battery
. But you can still use your laptop, charge your camera, even watch tv etc.