Solar power crashed its way onto the U.S. power grid last year and is now fundamentally changing the makeup of how energy is being produced and consumed. Essentially, it’s becoming a mainstream power source: According to a new report from the Solar Energy Industries Association and GTM Research, solar power had another record year in 2013, with 4.75 gigawatts of solar energy systems installed, including 2 gigawatts in just the fourth quarter alone.

That made solar the second largest source of new electricity generation in the U.S. last year, only behind natural gas. New natural gas made up almost half of the new electricity built out, solar made up about a third of new electricity, and wind delivered about 7 percent of new electricity. New coal power only made up 10 percent of the total (high-fives!).

Apple’s solar farm next to its data center in Maiden, North Carolina

The amount…