Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.

Average solar panel payback period for homes in the U.S. in 2024. Most homeowners in the United States can expect their solar panels to pay for themselves in between 9 and 12 years, depending on the state they live in.

According to Solar Energy Industries Association (SEIA) quarterly report the best states for solar energy are California, Texas, North Carolina, Florida, and Arizona. California receives nearly 300 sunny days, has a robust solar system, a stable job market, and a massive investment in solar space.