Assuming you got your stats from here: http://en.wikipedia.org/wiki/Energy_in_the_United_States#Current_consumption http://en.wikipedia.org/wiki/Energy_in_the_

Assuming you got your stats from here: http://en.wikipedia.org/wiki/Energy_in_the_United_States#Current_consumption http://en.wikipedia.org/wiki/Energy_in_the_United_States#Cur... Which says, for Commercial energy use: 25% lighting 13% heating 11% cooling 6% refrigeration 6% water heating 6% ventilation 6% electronics You could find gains in ventilation, electronics, refrigeration, cooling, and probably even heating if this technology was widely used and performs well over all uses, so the 7% isn't out of the question, even if it might be very optimistic.