Hey Fab, SFlare,
Did he bring in utility power? Last knew he'd upgraded to a pretty slick Schneider inverter set-up, had batteries, two gennys...
I know the Bergey Excel can is available in a 7.5 kW battery charging configuration; 48V IIRC that might be it.
Maybe if we all get speculating he'll pop in long enough to set us straight.
~ks