I keep eyeballing this thing, but never used one: http://www.invertersrus.com/aims-picoglf12kw48v240vs.html
Only goes to 12,000 watt, but that should be enough for a 50-amp subpanel.
We have a 22kW generator for our office backing up a 240v single-phase circuit. Right now we have a lot of little UPSs all around the office and would prefer just a one to back up the whole place.APC Symmetra looks like it only goes to 16kW. Any options that will support the full load of the generator?
