My plan was for around 300-400 watts and a 225AH battery bank. After some discussion I realized that I will need 500+ watts of solar and a 300+ AH battery bank.
I found a package with 5-100 watt panels, connectors, wire, mounts and charge controller for less than $800. Battery bank will be 4 - Trojan T105's and battery cables $540.
Inverter choice is still open. I see 2000 watt PSW inverters with decent to very good reviews ranging from $200-$850.
That puts me at $1540-$2190 plus a few bucks for stray hardware.
The fridge that I am looking at (per the "energy guide") consumes 1.08 kWh daily. I cannot find the specific current draw. I can make a good guess that (assuming a 33% duty cycle) that the compressor will run 8 of 24 hours. If so then it will consume .125kWh per hour of compressor run. I=P/E. 1.04amps=125watts/120volts.
1.04 amps @ 120v and an 80% inverter efficiency would yield a 130 AH daily draw on my battery bank.
The question is still: is it worth the time and $$ to save generator run time? Fuel cost for generator run is generally $.75-$1.00 per hour.
From some of the comments above it sounds like supplemental power may be useful even when in a park with hookups. With that factored in I am leaning towards installing solar.
