Number of residential solar systems installed in the U.S. 2022, by state
In 2022, California was the state with the largest number of installed residential solar systems in the United States. The Golden State had more than 216 million systems as of the end of that year. Arizona and Texas followed with over 245,000 and 217,000 home solar systems. The total number of residential solar installations has increased significantly in the last years across the United States.