According to the Solar Energy Industries Association, there are now more than two million solar installations in the US. U.S. solar installations now produce enough electricity to power more than twelve million homes. The number of installations in the United States is forecast to reach four million in 2023.
Solar energy has grown in the US thanks to rapidly falling prices, state mandates that require utilities to source large amounts of renewable energy and a federal tax credit worth 30 percent of the cost of a system.
Solar is now a $17 billion industry, but remains a small part of the US energy mix compared with fossil fuels. This year solar, wind and other renewables excluding hydropower are expected to provide eleven percent of US electricity generation, compared with 37 percent for natural gas and 24 percent for coal.
States where solar has grown rapidly over the last three years include California, Florida,Rhode Island, Maryland, Texas, and Utah.