https://en.wikipedia.org/wiki/Energy_in_the_United_States#Co... shows residential and commercial electricity usage declining in 2000 but doesn't seem to have later data.

http://www.dispatch.com/content/stories/national_world/2013/... says homes are down to using less energy in 2013 than anytime since the early 2000's. Here's a graph of energy use over time http://nation.time.com/2013/10/24/interactive-see-how-americ...