It is not easy to answer your question because sometimes I have three air conditioners running and then you have to figure in the coffee makers, recharging the batteries, etc. etc. My batteries are the lithium LIFPo. They come with a monitoring system so you can monitor how far down your batteries have drawn. They are more expensive but your traditional batteries should only be discharged to about 50% whereas with the lithium batteries you can discharge them to 15% without any problems and usually I can recharge them by noon or one in the afternoon . If you want more detailed information, I can send you a private message, and some video is showing my system. As I mentioned before I have the benefit of a breeze, but at night sleeping as much easier with air-conditioning. Also, during the summer we need to have the air conditioners because it is so hot and sometimes the breeze stops. Each of the air conditioners draws about 1500 W so that gives you an idea of the capacity. I also have windmills as a back up but at this point they are not functional because they have a rectifier. These are cheap windmills from China and rectifiers are junk. to find a decent rectifier, and once I do that will supplement the power at night when the wind is blowing. Sorry for my typos and grammatical errors. I am dictating and I am on my way out the door.