I annualized the data to get rid of seasonal squiggles in energy use. "Tech" is what Roger labels technology -- the carbon intensity of the economy:
Tech = EI*CI = C/GDP
(see this post for the acronym definitions). The story remains the same: most of our flattening carbon emissions come from using energy more efficiently, not from reducing carbon emissions per se.
Here's a plot that shows that the average American is actually using less energy than a few decades ago:
[Yes, energy isn't measured in Watts, but since we're talking about a fix period of one year, the two are directly related.] We're flat in energy not because we are trying to use less of it, but because we use it more efficiently.