Heh...I had a laugh with my customer on a recent job. He has a small license frame printing facility and recently upgraded his UV dryer/printer which ran with a single phase 208V 70amp load, with a much larger machine which required a 3 phase 75kva xfmr to power.

He got a sheepish call from the hydro company a month later after seeing a dramatic jump in hydro bills... "um, did you guys, change anything electrically in your building?".....

His hydro bill jumped from $500 a month, to over $1200!