This only feeds one workstation, Galadriel, but Galadriel has two liquid-cooled processors and a 1,350w internal power supply, and the UPS also feeds Galadriel's two 30" 2560x1600 monitors, 150w each.  Galadriel doesn't use all of her 1,350w;  she pulls about 770w when rendering at 100% CPU.  But with PC internal power supplies -as with external batt/surge UPS- it's good to have more capacity than needed.  Everything lives longer if it isn't running at the ragged edge of its ability.

So it's YOU!? You're the one melting my planet!