The US added a record-breaking amount of energy storage in 2025, according to a new solar industry report published Monday. The new report, issued by the Solar Energy Industries Association (SEIA), follows another dataset released last week by Bloomberg New Energy Finance showing a similar boom in battery growth. That’s enough storage, the SEIA report claims, to power more than 5 million homes each year. “Texas basically says, ‘I don't care about your cultural bias,’” says Shah, who was not involved in the SEIA report. On an average day, energy grids around the US use only about 50 percent of the energy available to them.