The U.S. is now home to more than 2 million solar PV installations, Wood Mackenzie Power & Renewables and the Solar Energy Industries Association (SEIA) announced today. The mark comes just three years after the industry completed its 1 millionth installation, a feat that took 40 years to accomplish. California represented 51 percent of the first million installations but accounted for 43 percent of the second million.
— source woodmac.com | 2019