In August of 2013, according the the U.S. Energy Information Administration (EIA), net solar energy generation totaled 983,000 megawatt hours. This was an increase of 112% over August of 2012, when production was only 464,000 megawatt hours. These figures include both solar thermal and photovoltaic production.
As exciting as this is, it is important to keep this in perspective. Wind energy production is currently nearly 10 times that of solar. Given the vast amounts of real estate that must be devoted to wind energy production, this suggests that the solar power industry is still in its infancy, leaving plenty of room for further growth.