Over the last few years, solar capacity in the United States has truly taken off. Over 58 gigawatts (or million kilowatts) of solar capacity are currently installed across nearly 2 million projects, and at least 3.7 gigawatts more are in the pipeline as of late 2018. At the same time, the fate of nuclear power in the country is at a crossroads. Only one single nuclear unit has been completed in the U.S. since the 1990s, and the two most recent projects are experiencing delays, cost overruns, and ultimately cancellations.