I'm not talking about electricity alone, but about primary power consumption. That includes heat and fuel for your car, and also all the energy consumed by domestic industry. It's about 2.5155×10^13 kWh, or 81,800 kWh per person (in 2009)[1]. You're of course right that just electricity is much easier.
[1] https://en.wikipedia.org/wiki/Energy_in_the_United_States#Pr...