First, I have not read all of the comments you received. Most people on this blog offer sound advice. One I saw was to caution you as "it is not simple." I agree with that comment.
I have installed a combined 280 Watt solar system and a 2000 Watt inverter with a surge rating of 4000 Watts for 40 milliseconds. I did not plan on using "cords" for anything. I am a retired engineer and have done extensive house wiring to meet the electrical code.
Here are my suggestions:
1. If you live in an area where you do not need the air conditioner, buy a Honda 2000 watt generator. They cost about $1000. It is the easiest near-term solution that you can always use as a backup power system. Then, when you want power, plug your RV into it as it then will act as shore power. With this generator, you can run everything except you air conditioner.
2. Then, start reading lots of blogs, talking to solar system specialists (you need about 300 to 400 watts of solar if you are out more than a couple of days) to recharge your batteries. By the way, if you do not have high-quality 6 Volt batteries, put them on your list. Trojan T105 and US Battery 2200 are good examples but they cost about $160 to $170 each. Two will do but more is better. Even better yet are Lithium-Ion Batteries. Read lots about them as they give you lots of power but cost a lot more in the short term. You will find out that a financial case can be made that even at $1000, they are cheaper in the long run than any lead-acid battery. Two 12 volt Lithium batteries will give you about twice the power of 4 6-volt lead-acid batteries. I suggest calling Trojan Tech support to discuss the options. They sell both kinds of batteries.
3. Battery capacity is necessary to run anything for a short duration. My list is like yours -- including the curling iron for the wife! My list also included the microwave and I discuss that below.
4. Lastly, one "mistake" I made on my system is that I did not know that microwaves have a surge power requirement about 3 to 4 times the name plat power. Thus, my 1350 Watt microwave trips my inverter at startup. It runs fine on my Honda generator.
My solution next year is to buy a smaller microwave or see if the new inverter-based microwaves have a lower surge power requirement. So far, I have not found any tech support people that know that answer as those microwaves are fairly new.
So good luck. Buy your Honda generator and then take your time learning about the other items listed above.
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Bill & Cathe
2018 Cougar 24 SABWE
2015 Dodge Ram 1500
Heber City, UTAH
Living the Dream at 6300 Feet!
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