600w/455Ah system on a short bus. Can run all the household electrical off of it. Lights, laptops, phones, fans, pumps, 12v refrigerator, stereo, coffee grinder, power tools. I start to tax the battery bank when running my 120vac air compressor.
We typically run into a light shortage in December, however, which has us being conservative with power usage. The rest of the year is typically ok.