I am in the process of designing my off-grid power system. PV will be the main source, with a backup generator. I have mostly figured out the PV side, using SmartSolar 150/85 charge controllers. I will have a shop, with a small apartment, and a house will be build a few years later.
I need 240V split-phase to power my shop equipment (welder, plasma cutter and air compressor). Two of them might be running at the same time, so I need quite a bit of surge capacity, as I also will have a 240V well pump. I am looking at the following:
Quattro 48/15000/200-100/100 230V (set 240V/60Hz)
into 100A Autotransformer feeding my main panel in the shop and then eventually feeding a subpanel in the future house.
I'm just trying to run this by a few knowledgeable people before I write the check.
Another question I had, does anyone know how efficient is the autotransformer? What's it power consumption?