If you load down a 2000WATT Inverter it will draw around 170AMPS running at 12.3VDC... Thats a lot of current... You will need a battery bank to produce around 200AMPS for 8 hours to get any use out of the 2000WATT Inverter.
Check the specs on your available batteries to see how many you will need in parallel to give you a couple hundred of AMPS for 8 hours and not drop your battery below 50% charge state. i.e. two 6VDC batteries in series of the GC2 quality will produce 25AMPs @ 12VDC for around 440 minutes but this will drain your batteries down to 0% charge state or around 10.5VDC so you really will only get 12 AMPS to use for 50% charge state.
Haven't done your math yet but I think you are going to be a bit short on batteries if you plan to pull a full 2000WATTS of 120VAC from your inverter for 8 hours a day... you may be short for even just four hours a day.
My only experience with something like this was running about 1500WATS for a trunk full of electronic test equipment from a rental car 105AH 12VDC start battery in my working days- It lasted about 10-15 minutes even with the rental car motor running at the time. Two batteries would double that an so on and so on...
Inverters love to eat up batteries.
Then after you run your batteries down you have to come up with a way to re-charge them in a timely manner. If you have 14.4VDC with a capacity of around 20AMPs of charge you can re-charge a single 12VDC deep cycle battery in just 3 hours time. If you have 13.6VDC with a capacity of 20AMPS of charge you can charge the same batteries in around 12 hours of time. Please remember your 100WATT panel will only produce around 5AMPs of usable charge in high sun. Four of them will only produce around 20AMPs of usable power. You will need several hours of full sun light to re-charge only one battery.
Just something to think about before jumping into things... The experts on here will have better info for you.
Need to talk with those guys that live in their MH full time and generally live off the power grid. PIANOTUNA comes too mind... Check out his profile on how many batteries he has in his motorhome....
Don't let me paint a bad picture here - There is just alot of planning to be done to be successful about it. Success to me is to be able to run all of the 120VAC Items we want to have on using an INVERTER and all of the 12VDC Dc items we want to have on direct connected to the battery terminals and survive the one day/night battery run and not deplete my batteries below their 50% charge state or around 12.0VDC by 8Am the next morning. Then be able to re-charge those batteries back up to their 90% charge state in my case by running my trailer from a 2KW Honda generator for three hours time using smart mode charging technology. Now I can do all of this all over again the next day/night run off the batteries. To me the added solar panels added to this picture will only hopefully keep me from running the generator as much during the high sun to re-charge my batteries. My inverter is only a 600WATT PSW unit. My battery bank gives me around 255AHs of capacity. I probably only use around 300WATTS of AC power for about 4 hours a day from 8PM to 11PM and then I add in the parasitic power drains for all day. My goal again is to have my battery bank reading around 12.0VDC at 8AM each morning.
If you do all of this in your CAMP BACK YARD before even going out off the power grid with your trailer setup you will quickly find out it is not easy to accomplish.
Generally my planned setups all get dark on me around 10PM at night then I am back to flashlights and candles and a bag full of D-CELL batteries haha...
Roy ken
